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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Perth, Western Australia, Australia Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

September Air Quality Analysis

Perth, Western Australia, Australia

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Sep 2025
36AQI
Lowest AQI recorded on
25th Sep 2023
4AQI

Same Day Analysis (29th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 16 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.

Day & Night AQI Trend: 28th Sep - 29th Sep 2026

Perth, Western Australia, Australia

AQI
Day
Night
.

6 AM28th Sep 2026

6 PM

5 AM29th Sep 2026

Day time
Avg. Highest Time
5AM29th Sep

17AQI

Avg. Lowest Time
7AM28th Sep

11AQI

Night time
Avg. Highest Time
2AM29th Sep

22AQI

Avg. Lowest Time
7PM28th Sep

12AQI

In the last 24 hours,

Perth's AQI reached its highest point of 22 at 2 AM during the Night, while the lowest point, 11, was recorded at 7 AM during the Day between 28th Sep and 29th Sep 2026.

Day & Night AQI Trend : Aug - Sep 2026

Perth, Western Australia, Australia

AugSep
31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th
Day
Night
31st Aug 2026206 AMAQI
31st Aug 2026207 AMAQI
31st Aug 2026218 AMAQI
31st Aug 2026249 AMAQI
31st Aug 20262310 AMAQI
31st Aug 20261711 AMAQI
31st Aug 20261812 PMAQI
31st Aug 2026191 PMAQI
31st Aug 2026172 PMAQI
31st Aug 2026183 PMAQI
31st Aug 2026204 PMAQI
31st Aug 2026185 PMAQI
31st Aug 2026166 PMAQI
31st Aug 2026187 PMAQI
31st Aug 2026178 PMAQI
31st Aug 2026149 PMAQI
31st Aug 20261810 PMAQI
31st Aug 20261911 PMAQI
1st Sep 20261712 AMAQI
1st Sep 2026171 AMAQI
1st Sep 2026172 AMAQI
1st Sep 2026163 AMAQI
1st Sep 2026134 AMAQI
1st Sep 2026135 AMAQI

17°C15/19°C

1st Sep 2026146 AMAQI
1st Sep 2026127 AMAQI
1st Sep 2026138 AMAQI
1st Sep 2026129 AMAQI
1st Sep 20261210 AMAQI
1st Sep 20261411 AMAQI
1st Sep 20261412 PMAQI
1st Sep 2026141 PMAQI
1st Sep 2026132 PMAQI
1st Sep 2026143 PMAQI
1st Sep 2026144 PMAQI
1st Sep 2026165 PMAQI
1st Sep 2026146 PMAQI
1st Sep 2026167 PMAQI
1st Sep 2026168 PMAQI
1st Sep 2026179 PMAQI
1st Sep 20261710 PMAQI
1st Sep 20261611 PMAQI
2nd Sep 20262012 AMAQI
2nd Sep 2026171 AMAQI
2nd Sep 2026232 AMAQI
2nd Sep 2026193 AMAQI
2nd Sep 2026214 AMAQI
2nd Sep 2026205 AMAQI

15°C13/16°C

2nd Sep 2026216 AMAQI
2nd Sep 2026247 AMAQI
2nd Sep 2026218 AMAQI
2nd Sep 2026219 AMAQI
2nd Sep 20262210 AMAQI
2nd Sep 20262011 AMAQI
2nd Sep 20262112 PMAQI
2nd Sep 2026181 PMAQI
2nd Sep 2026202 PMAQI
2nd Sep 2026183 PMAQI
2nd Sep 2026164 PMAQI
2nd Sep 2026175 PMAQI
2nd Sep 2026186 PMAQI
2nd Sep 2026167 PMAQI
2nd Sep 2026168 PMAQI
2nd Sep 2026179 PMAQI
2nd Sep 20261610 PMAQI
2nd Sep 20261811 PMAQI
3rd Sep 20261612 AMAQI
3rd Sep 2026141 AMAQI
3rd Sep 2026142 AMAQI
3rd Sep 2026133 AMAQI
3rd Sep 2026144 AMAQI
3rd Sep 2026135 AMAQI

15°C14/16°C

3rd Sep 2026136 AMAQI
3rd Sep 2026207 AMAQI
3rd Sep 2026298 AMAQI
3rd Sep 2026189 AMAQI
3rd Sep 20261210 AMAQI
3rd Sep 20261211 AMAQI
3rd Sep 20261212 PMAQI
3rd Sep 2026121 PMAQI
3rd Sep 2026102 PMAQI
3rd Sep 2026113 PMAQI
3rd Sep 2026124 PMAQI
3rd Sep 2026105 PMAQI
3rd Sep 202696 PMAQI
3rd Sep 2026127 PMAQI
3rd Sep 2026128 PMAQI
3rd Sep 2026129 PMAQI
3rd Sep 20261210 PMAQI
3rd Sep 20261611 PMAQI
4th Sep 20261712 AMAQI
4th Sep 2026141 AMAQI
4th Sep 2026122 AMAQI
4th Sep 2026133 AMAQI
4th Sep 2026164 AMAQI
4th Sep 2026195 AMAQI

16°C14/18°C

4th Sep 2026186 AMAQI
4th Sep 2026177 AMAQI
4th Sep 2026208 AMAQI
4th Sep 2026249 AMAQI
4th Sep 20262510 AMAQI
4th Sep 20262511 AMAQI
4th Sep 20262512 PMAQI
4th Sep 2026211 PMAQI
4th Sep 2026252 PMAQI
4th Sep 2026253 PMAQI
4th Sep 2026254 PMAQI
4th Sep 2026255 PMAQI
4th Sep 2026256 PMAQI
4th Sep 2026217 PMAQI
4th Sep 2026238 PMAQI
4th Sep 2026269 PMAQI
4th Sep 20262110 PMAQI
4th Sep 20262311 PMAQI
5th Sep 20262312 AMAQI
5th Sep 2026251 AMAQI
5th Sep 2026212 AMAQI
5th Sep 2026253 AMAQI
5th Sep 2026254 AMAQI
5th Sep 2026215 AMAQI

16°C16/17°C

5th Sep 2026216 AMAQI
5th Sep 2026197 AMAQI
5th Sep 2026208 AMAQI
5th Sep 2026209 AMAQI
5th Sep 20261710 AMAQI
5th Sep 20261911 AMAQI
5th Sep 20261912 PMAQI
5th Sep 2026191 PMAQI
5th Sep 2026192 PMAQI
5th Sep 2026183 PMAQI
5th Sep 2026164 PMAQI
5th Sep 2026185 PMAQI
5th Sep 2026176 PMAQI
5th Sep 2026187 PMAQI
5th Sep 2026168 PMAQI
5th Sep 2026139 PMAQI
5th Sep 20261410 PMAQI
5th Sep 20264011 PMAQI
6th Sep 20261612 AMAQI
6th Sep 2026141 AMAQI
6th Sep 2026142 AMAQI
6th Sep 2026143 AMAQI
6th Sep 2026124 AMAQI
6th Sep 2026135 AMAQI

16°C15/18°C

6th Sep 2026136 AMAQI
6th Sep 2026147 AMAQI
6th Sep 2026268 AMAQI
6th Sep 2026339 AMAQI
6th Sep 20263310 AMAQI
6th Sep 20263211 AMAQI
6th Sep 20263112 PMAQI
6th Sep 2026121 PMAQI
6th Sep 2026182 PMAQI
6th Sep 2026163 PMAQI
6th Sep 2026224 PMAQI
6th Sep 2026115 PMAQI
6th Sep 2026116 PMAQI
6th Sep 2026117 PMAQI
6th Sep 2026298 PMAQI
6th Sep 2026139 PMAQI
6th Sep 20261210 PMAQI
6th Sep 20261211 PMAQI
7th Sep 20261112 AMAQI
7th Sep 2026101 AMAQI
7th Sep 2026102 AMAQI
7th Sep 2026113 AMAQI
7th Sep 2026104 AMAQI
7th Sep 2026115 AMAQI

15°C12/18°C

7th Sep 2026116 AMAQI
7th Sep 202697 AMAQI
7th Sep 202698 AMAQI
7th Sep 202689 AMAQI
7th Sep 20261010 AMAQI
7th Sep 20261011 AMAQI
7th Sep 20261212 PMAQI
7th Sep 2026121 PMAQI
7th Sep 2026142 PMAQI
7th Sep 2026133 PMAQI
7th Sep 2026174 PMAQI
7th Sep 2026165 PMAQI
7th Sep 2026196 PMAQI
7th Sep 2026167 PMAQI
7th Sep 2026168 PMAQI
7th Sep 2026169 PMAQI
7th Sep 20261810 PMAQI
7th Sep 20261911 PMAQI
8th Sep 20261712 AMAQI
8th Sep 2026141 AMAQI
8th Sep 2026162 AMAQI
8th Sep 2026163 AMAQI
8th Sep 2026174 AMAQI
8th Sep 2026175 AMAQI

16°C11/20°C

8th Sep 2026166 AMAQI
8th Sep 2026167 AMAQI
8th Sep 2026168 AMAQI
8th Sep 2026149 AMAQI
8th Sep 20264110 AMAQI
8th Sep 20266611 AMAQI
8th Sep 20261312 PMAQI
8th Sep 2026141 PMAQI
8th Sep 2026122 PMAQI
8th Sep 2026123 PMAQI
8th Sep 2026134 PMAQI
8th Sep 2026135 PMAQI
8th Sep 2026126 PMAQI
8th Sep 2026127 PMAQI
8th Sep 2026128 PMAQI
8th Sep 2026149 PMAQI
8th Sep 20261210 PMAQI
8th Sep 20261611 PMAQI
9th Sep 20261412 AMAQI
9th Sep 2026141 AMAQI
9th Sep 2026142 AMAQI
9th Sep 2026133 AMAQI
9th Sep 2026134 AMAQI
9th Sep 2026145 AMAQI

16°C13/20°C

9th Sep 2026176 AMAQI
9th Sep 2026167 AMAQI
9th Sep 2026168 AMAQI
9th Sep 2026169 AMAQI
9th Sep 20261410 AMAQI
9th Sep 20261711 AMAQI
9th Sep 20261612 PMAQI
9th Sep 2026171 PMAQI
9th Sep 2026172 PMAQI
9th Sep 2026143 PMAQI
9th Sep 2026164 PMAQI
9th Sep 2026235 PMAQI
9th Sep 2026136 PMAQI
9th Sep 2026147 PMAQI
9th Sep 2026168 PMAQI
9th Sep 2026169 PMAQI
9th Sep 20261410 PMAQI
9th Sep 20261611 PMAQI
10th Sep 20261312 AMAQI
10th Sep 2026141 AMAQI
10th Sep 2026142 AMAQI
10th Sep 2026133 AMAQI
10th Sep 2026124 AMAQI
10th Sep 2026125 AMAQI

16°C12/21°C

10th Sep 2026136 AMAQI
10th Sep 2026147 AMAQI
10th Sep 2026138 AMAQI
10th Sep 2026149 AMAQI
10th Sep 20261610 AMAQI
10th Sep 20261611 AMAQI
10th Sep 20261712 PMAQI
10th Sep 2026171 PMAQI
10th Sep 2026142 PMAQI
10th Sep 2026163 PMAQI
10th Sep 2026184 PMAQI
10th Sep 2026195 PMAQI
10th Sep 2026206 PMAQI
10th Sep 2026197 PMAQI
10th Sep 2026168 PMAQI
10th Sep 2026189 PMAQI
10th Sep 20261610 PMAQI
10th Sep 20261911 PMAQI
11th Sep 20261812 AMAQI
11th Sep 2026161 AMAQI
11th Sep 2026192 AMAQI
11th Sep 2026163 AMAQI
11th Sep 2026184 AMAQI
11th Sep 2026185 AMAQI

17°C13/21°C

11th Sep 2026136 AMAQI
11th Sep 2026167 AMAQI
11th Sep 2026148 AMAQI
11th Sep 2026149 AMAQI
11th Sep 20261310 AMAQI
11th Sep 20261311 AMAQI
11th Sep 20261412 PMAQI
11th Sep 2026131 PMAQI
11th Sep 2026122 PMAQI
11th Sep 2026133 PMAQI
11th Sep 2026124 PMAQI
11th Sep 2026145 PMAQI
11th Sep 2026146 PMAQI
11th Sep 2026147 PMAQI
11th Sep 2026168 PMAQI
11th Sep 2026209 PMAQI
11th Sep 20262010 PMAQI
11th Sep 20261911 PMAQI
12th Sep 20262112 AMAQI
12th Sep 2026221 AMAQI
12th Sep 2026202 AMAQI
12th Sep 2026193 AMAQI
12th Sep 2026204 AMAQI
12th Sep 2026215 AMAQI

18°C14/21°C

12th Sep 2026186 AMAQI
12th Sep 2026207 AMAQI
12th Sep 2026238 AMAQI
12th Sep 2026229 AMAQI
12th Sep 20262410 AMAQI
12th Sep 20262411 AMAQI
12th Sep 20262512 PMAQI
12th Sep 2026291 PMAQI
12th Sep 2026312 PMAQI
12th Sep 2026273 PMAQI
12th Sep 2026314 PMAQI
12th Sep 2026305 PMAQI
12th Sep 2026296 PMAQI
12th Sep 2026297 PMAQI
12th Sep 2026338 PMAQI
12th Sep 2026339 PMAQI
12th Sep 20263210 PMAQI
12th Sep 20263311 PMAQI
13th Sep 20262512 AMAQI
13th Sep 2026251 AMAQI
13th Sep 2026212 AMAQI
13th Sep 2026213 AMAQI
13th Sep 2026215 AMAQI

17°C16/18°C

13th Sep 2026256 AMAQI
13th Sep 2026257 AMAQI
13th Sep 2026348 AMAQI
13th Sep 2026469 AMAQI
13th Sep 20264910 AMAQI
13th Sep 20266011 AMAQI
13th Sep 20264412 PMAQI
13th Sep 2026251 PMAQI
13th Sep 2026252 PMAQI
13th Sep 2026253 PMAQI
13th Sep 2026314 PMAQI
13th Sep 2026305 PMAQI
13th Sep 2026296 PMAQI
13th Sep 2026257 PMAQI
13th Sep 2026258 PMAQI
13th Sep 2026249 PMAQI
13th Sep 20262310 PMAQI
13th Sep 20262111 PMAQI
14th Sep 20262112 AMAQI
14th Sep 2026201 AMAQI
14th Sep 2026172 AMAQI
14th Sep 2026163 AMAQI
14th Sep 2026164 AMAQI
14th Sep 2026165 AMAQI

17°C15/18°C

14th Sep 2026166 AMAQI
14th Sep 2026167 AMAQI
14th Sep 2026168 AMAQI
14th Sep 2026169 AMAQI
14th Sep 20261710 AMAQI
14th Sep 20261411 AMAQI
14th Sep 20261612 PMAQI
14th Sep 2026121 PMAQI
14th Sep 2026122 PMAQI
14th Sep 2026123 PMAQI
14th Sep 2026124 PMAQI
14th Sep 2026125 PMAQI
14th Sep 2026126 PMAQI
14th Sep 2026127 PMAQI
14th Sep 2026128 PMAQI
14th Sep 2026149 PMAQI
14th Sep 20261410 PMAQI
14th Sep 20261311 PMAQI
15th Sep 20261412 AMAQI
15th Sep 2026131 AMAQI
15th Sep 2026142 AMAQI
15th Sep 2026133 AMAQI
15th Sep 2026134 AMAQI
15th Sep 2026165 AMAQI

18°C16/20°C

15th Sep 2026186 AMAQI
15th Sep 2026187 AMAQI
15th Sep 2026188 AMAQI
15th Sep 2026179 AMAQI
15th Sep 20262010 AMAQI
15th Sep 20261911 AMAQI
15th Sep 20261912 PMAQI
15th Sep 2026161 PMAQI
15th Sep 2026192 PMAQI
15th Sep 2026183 PMAQI
15th Sep 2026194 PMAQI
15th Sep 2026185 PMAQI
15th Sep 2026206 PMAQI
15th Sep 2026207 PMAQI
15th Sep 2026198 PMAQI
15th Sep 2026209 PMAQI
15th Sep 20261910 PMAQI
15th Sep 20261811 PMAQI
16th Sep 20261812 AMAQI
16th Sep 2026181 AMAQI
16th Sep 2026192 AMAQI
16th Sep 2026173 AMAQI
16th Sep 2026164 AMAQI
16th Sep 2026165 AMAQI

19°C15/23°C

16th Sep 2026146 AMAQI
16th Sep 2026147 AMAQI
16th Sep 2026178 AMAQI
16th Sep 2026149 AMAQI
16th Sep 20261810 AMAQI
16th Sep 20261611 AMAQI
16th Sep 20261812 PMAQI
16th Sep 2026161 PMAQI
16th Sep 2026192 PMAQI
16th Sep 2026183 PMAQI
16th Sep 2026184 PMAQI
16th Sep 2026175 PMAQI
16th Sep 2026196 PMAQI
16th Sep 2026207 PMAQI
16th Sep 2026248 PMAQI
16th Sep 2026229 PMAQI
16th Sep 20262510 PMAQI
16th Sep 20262511 PMAQI
17th Sep 20262512 AMAQI
17th Sep 2026251 AMAQI
17th Sep 2026252 AMAQI
17th Sep 2026253 AMAQI
17th Sep 2026254 AMAQI
17th Sep 2026235 AMAQI

22°C18/25°C

17th Sep 2026226 AMAQI
17th Sep 2026247 AMAQI
17th Sep 2026238 AMAQI
17th Sep 2026239 AMAQI
17th Sep 20262310 AMAQI
17th Sep 20262111 AMAQI
17th Sep 20262412 PMAQI
17th Sep 2026261 PMAQI
17th Sep 2026212 PMAQI
17th Sep 2026213 PMAQI
17th Sep 2026214 PMAQI
17th Sep 2026215 PMAQI
17th Sep 2026216 PMAQI
17th Sep 2026217 PMAQI
17th Sep 2026258 PMAQI
17th Sep 2026219 PMAQI
17th Sep 20262010 PMAQI
17th Sep 20262211 PMAQI
18th Sep 20262112 AMAQI
18th Sep 2026201 AMAQI
18th Sep 2026222 AMAQI
18th Sep 2026203 AMAQI
18th Sep 2026164 AMAQI
18th Sep 2026165 AMAQI

21°C18/22°C

18th Sep 2026196 AMAQI
18th Sep 2026187 AMAQI
18th Sep 2026178 AMAQI
18th Sep 2026179 AMAQI
18th Sep 20262010 AMAQI
18th Sep 20261911 AMAQI
18th Sep 20262012 PMAQI
18th Sep 2026171 PMAQI
18th Sep 2026182 PMAQI
18th Sep 2026163 PMAQI
18th Sep 2026194 PMAQI
18th Sep 2026195 PMAQI
18th Sep 2026206 PMAQI
18th Sep 2026207 PMAQI
18th Sep 2026188 PMAQI
18th Sep 2026169 PMAQI
18th Sep 20261610 PMAQI
18th Sep 20261711 PMAQI
19th Sep 20261712 AMAQI
19th Sep 2026191 AMAQI
19th Sep 2026402 AMAQI
19th Sep 2026163 AMAQI
19th Sep 2026174 AMAQI
19th Sep 2026205 AMAQI

18°C15/22°C

19th Sep 2026246 AMAQI
19th Sep 2026247 AMAQI
19th Sep 2026288 AMAQI
19th Sep 2026249 AMAQI
19th Sep 20262610 AMAQI
19th Sep 20262311 AMAQI
19th Sep 20262112 PMAQI
19th Sep 2026271 PMAQI
19th Sep 2026282 PMAQI
19th Sep 2026273 PMAQI
19th Sep 2026304 PMAQI
19th Sep 2026305 PMAQI
19th Sep 2026326 PMAQI
19th Sep 2026297 PMAQI
19th Sep 2026308 PMAQI
19th Sep 2026299 PMAQI
19th Sep 20262510 PMAQI
19th Sep 20262511 PMAQI
20th Sep 20262612 AMAQI
20th Sep 2026241 AMAQI
20th Sep 2026252 AMAQI
20th Sep 2026233 AMAQI
20th Sep 2026224 AMAQI
20th Sep 2026205 AMAQI

17°C16/18°C

20th Sep 2026226 AMAQI
20th Sep 2026187 AMAQI
20th Sep 2026188 AMAQI
20th Sep 2026209 AMAQI
20th Sep 20261910 AMAQI
20th Sep 20261811 AMAQI
20th Sep 20263212 PMAQI
20th Sep 2026321 PMAQI
20th Sep 2026142 PMAQI
20th Sep 2026173 PMAQI
20th Sep 2026154 PMAQI
20th Sep 2026165 PMAQI
20th Sep 2026146 PMAQI
20th Sep 2026137 PMAQI
20th Sep 2026128 PMAQI
20th Sep 2026139 PMAQI
20th Sep 20261210 PMAQI
20th Sep 20261711 PMAQI
21st Sep 20261612 AMAQI
21st Sep 2026141 AMAQI
21st Sep 2026142 AMAQI
21st Sep 2026143 AMAQI
21st Sep 2026164 AMAQI
21st Sep 2026165 AMAQI

17°C16/18°C

21st Sep 2026166 AMAQI
21st Sep 2026167 AMAQI
21st Sep 2026208 AMAQI
21st Sep 2026199 AMAQI
21st Sep 20261810 AMAQI
21st Sep 20261911 AMAQI
21st Sep 20261612 PMAQI
21st Sep 2026181 PMAQI
21st Sep 2026202 PMAQI
21st Sep 2026193 PMAQI
21st Sep 2026184 PMAQI
21st Sep 2026215 PMAQI
21st Sep 2026166 PMAQI
21st Sep 2026197 PMAQI
21st Sep 2026208 PMAQI
21st Sep 2026189 PMAQI
21st Sep 20262210 PMAQI
21st Sep 20263611 PMAQI
22nd Sep 20265212 AMAQI
22nd Sep 2026371 AMAQI
22nd Sep 2026182 AMAQI
22nd Sep 2026333 AMAQI
22nd Sep 2026434 AMAQI
22nd Sep 2026355 AMAQI

17°C15/18°C

22nd Sep 2026206 AMAQI
22nd Sep 2026207 AMAQI
22nd Sep 2026168 AMAQI
22nd Sep 2026199 AMAQI
22nd Sep 20262110 AMAQI
22nd Sep 20262111 AMAQI
22nd Sep 20262112 PMAQI
22nd Sep 2026211 PMAQI
22nd Sep 2026202 PMAQI
22nd Sep 2026183 PMAQI
22nd Sep 2026194 PMAQI
22nd Sep 2026185 PMAQI
22nd Sep 2026196 PMAQI
22nd Sep 2026167 PMAQI
22nd Sep 2026178 PMAQI
22nd Sep 2026189 PMAQI
22nd Sep 20261610 PMAQI
22nd Sep 20261711 PMAQI
23rd Sep 20261412 AMAQI
23rd Sep 2026161 AMAQI
23rd Sep 2026162 AMAQI
23rd Sep 2026163 AMAQI
23rd Sep 2026164 AMAQI
23rd Sep 2026175 AMAQI

16°C14/17°C

23rd Sep 2026146 AMAQI
23rd Sep 2026177 AMAQI
23rd Sep 2026168 AMAQI
23rd Sep 2026169 AMAQI
23rd Sep 20262010 AMAQI
23rd Sep 20261811 AMAQI
23rd Sep 20261612 PMAQI
23rd Sep 2026181 PMAQI
23rd Sep 2026142 PMAQI
23rd Sep 2026143 PMAQI
23rd Sep 2026134 PMAQI
23rd Sep 2026135 PMAQI
23rd Sep 2026146 PMAQI
23rd Sep 2026147 PMAQI
23rd Sep 2026148 PMAQI
23rd Sep 2026129 PMAQI
23rd Sep 20261310 PMAQI
23rd Sep 20261311 PMAQI
24th Sep 20261212 AMAQI
24th Sep 2026121 AMAQI
24th Sep 2026142 AMAQI
24th Sep 2026143 AMAQI
24th Sep 2026144 AMAQI
24th Sep 2026145 AMAQI

17°C15/18°C

24th Sep 2026136 AMAQI
24th Sep 2026257 AMAQI
24th Sep 2026428 AMAQI
24th Sep 2026309 AMAQI
24th Sep 20262510 AMAQI
24th Sep 20262211 AMAQI
24th Sep 20261212 PMAQI
24th Sep 2026121 PMAQI
24th Sep 2026102 PMAQI
24th Sep 2026123 PMAQI
24th Sep 2026164 PMAQI
24th Sep 2026165 PMAQI
24th Sep 2026106 PMAQI
24th Sep 202697 PMAQI
24th Sep 2026128 PMAQI
24th Sep 2026109 PMAQI
24th Sep 2026810 PMAQI
24th Sep 2026811 PMAQI
25th Sep 20261012 AMAQI
25th Sep 2026101 AMAQI
25th Sep 2026102 AMAQI
25th Sep 2026103 AMAQI
25th Sep 2026144 AMAQI
25th Sep 2026165 AMAQI

16°C13/18°C

25th Sep 2026146 AMAQI
25th Sep 2026147 AMAQI
25th Sep 2026128 AMAQI
25th Sep 2026169 AMAQI
25th Sep 20261710 AMAQI
25th Sep 20261411 AMAQI
25th Sep 20261812 PMAQI
25th Sep 2026171 PMAQI
25th Sep 2026192 PMAQI
25th Sep 2026173 PMAQI
25th Sep 2026174 PMAQI
25th Sep 2026185 PMAQI
25th Sep 2026146 PMAQI
25th Sep 2026197 PMAQI
25th Sep 2026238 PMAQI
25th Sep 2026189 PMAQI
25th Sep 20263410 PMAQI
25th Sep 20261611 PMAQI
26th Sep 20261212 AMAQI
26th Sep 2026131 AMAQI
26th Sep 2026142 AMAQI
26th Sep 2026143 AMAQI
26th Sep 2026164 AMAQI
26th Sep 2026125 AMAQI

16°C14/20°C

26th Sep 2026126 AMAQI
26th Sep 2026107 AMAQI
26th Sep 2026118 AMAQI
26th Sep 2026139 AMAQI
26th Sep 20261310 AMAQI
26th Sep 20261411 AMAQI
26th Sep 20261412 PMAQI
26th Sep 2026141 PMAQI
26th Sep 2026122 PMAQI
26th Sep 2026123 PMAQI
26th Sep 2026124 PMAQI
26th Sep 2026125 PMAQI
26th Sep 2026126 PMAQI
26th Sep 2026117 PMAQI
26th Sep 2026128 PMAQI
26th Sep 2026129 PMAQI
26th Sep 20261110 PMAQI
26th Sep 20261211 PMAQI
27th Sep 20261112 AMAQI
27th Sep 2026101 AMAQI
27th Sep 2026102 AMAQI
27th Sep 2026103 AMAQI
27th Sep 2026104 AMAQI
27th Sep 2026105 AMAQI

14°C13/16°C

27th Sep 2026116 AMAQI
27th Sep 2026227 AMAQI
27th Sep 2026348 AMAQI
27th Sep 2026409 AMAQI
27th Sep 20267010 AMAQI
27th Sep 20265011 AMAQI
27th Sep 20263612 PMAQI
27th Sep 2026361 PMAQI
27th Sep 2026232 PMAQI
27th Sep 202693 PMAQI
27th Sep 2026104 PMAQI
27th Sep 2026105 PMAQI
27th Sep 2026106 PMAQI
27th Sep 2026117 PMAQI
27th Sep 2026108 PMAQI
27th Sep 2026109 PMAQI
27th Sep 20261110 PMAQI
27th Sep 20261211 PMAQI
28th Sep 20261212 AMAQI
28th Sep 2026141 AMAQI
28th Sep 2026162 AMAQI
28th Sep 2026143 AMAQI
28th Sep 2026144 AMAQI
28th Sep 2026115 AMAQI

15°C13/17°C

28th Sep 2026126 AMAQI
28th Sep 2026117 AMAQI
28th Sep 2026128 AMAQI
28th Sep 2026129 AMAQI
28th Sep 20261410 AMAQI
28th Sep 20261311 AMAQI
28th Sep 20261212 PMAQI
28th Sep 2026131 PMAQI
28th Sep 2026142 PMAQI
28th Sep 2026123 PMAQI
28th Sep 2026124 PMAQI
28th Sep 2026125 PMAQI
28th Sep 2026126 PMAQI
28th Sep 2026127 PMAQI
28th Sep 2026138 PMAQI
28th Sep 2026139 PMAQI
28th Sep 20261310 PMAQI
28th Sep 20261411 PMAQI
29th Sep 20261412 AMAQI
29th Sep 2026161 AMAQI
29th Sep 2026222 AMAQI
29th Sep 2026183 AMAQI
29th Sep 2026174 AMAQI
29th Sep 2026175 AMAQI

17°C16/19°C

29th Sep 2026136 AMAQI
6 AM
29th Sep 2026177 AMAQI
29th Sep 2026148 AMAQI
29th Sep 2026179 AMAQI
29th Sep 20261710 AMAQI
29th Sep 20261611 AMAQI
29th Sep 20261412 PMAQI
12 PM
29th Sep 2026141 PMAQI
29th Sep 2026142 PMAQI
29th Sep 2026163 PMAQI
29th Sep 2026144 PMAQI
29th Sep 2026125 PMAQI
29th Sep 2026236 PMAQI
6 PM
29th Sep 2026337 PMAQI
29th Sep 2026228 PMAQI
29th Sep 2026129 PMAQI
29th Sep 20261310 PMAQI
29th Sep 20261311 PMAQI
12 AM
5 AM

16°C15/17°C

Day time
Avg. Highest Time
10 AM - 11 AM

22AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
6 AM

16AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 11 AM (Avg. 22), while the lowest AQI was between 6 AM to 6 AM (Avg. 16).
Night time
Avg. Highest Time
11 PM

19AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
1 AM

17AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 PM to 11 PM (Avg. 19), while the lowest AQI was between 1 AM to 1 AM (Avg. 17).

2026 Days Vs Air Quality

Perth, Western Australia, Australia

2026

99%

266

1%

3

Total number of days with different AQI categories in last 272 days in 2026 (93 days remaining)

Good
266 Days
Moderate
3 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 99%

Health Risk Level:

Very Low

In 2026, 99% of 272 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Perth, Western Australia, Australia

AQI levels in 2026

AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
22AQI (US)
2nd January 2026
26AQI (US)
3rd January 2026
30AQI (US)
4th January 2026
23AQI (US)
5th January 2026
30AQI (US)
6th January 2026
25AQI (US)
7th January 2026
25AQI (US)
8th January 2026
18AQI (US)
9th January 2026
16AQI (US)
10th January 2026
18AQI (US)
11th January 2026
18AQI (US)
12th January 2026
22AQI (US)
13th January 2026
16AQI (US)
14th January 2026
12AQI (US)
15th January 2026
17AQI (US)
16th January 2026
24AQI (US)
17th January 2026
16AQI (US)
18th January 2026
21AQI (US)
19th January 2026
50AQI (US)
20th January 2026
16AQI (US)
21st January 2026
24AQI (US)
22nd January 2026
29AQI (US)
23rd January 2026
43AQI (US)
24th January 2026
34AQI (US)
25th January 2026
38AQI (US)
26th January 2026
40AQI (US)
27th January 2026
24AQI (US)
28th January 2026
20AQI (US)
29th January 2026
28AQI (US)
30th January 2026
43AQI (US)
31st January 2026
32AQI (US)
1st February 2026
30AQI (US)
2nd February 2026
32AQI (US)
3rd February 2026
46AQI (US)
4th February 2026
46AQI (US)
5th February 2026
40AQI (US)
6th February 2026
28AQI (US)
7th February 2026
36AQI (US)
8th February 2026
26AQI (US)
9th February 2026
32AQI (US)
10th February 2026
46AQI (US)
11th February 2026
42AQI (US)
12th February 2026
38AQI (US)
13th February 2026
50AQI (US)
14th February 2026
44AQI (US)
15th February 2026
34AQI (US)
16th February 2026
29AQI (US)
17th February 2026
32AQI (US)
18th February 2026
34AQI (US)
19th February 2026
22AQI (US)
20th February 2026
32AQI (US)
21st February 2026
36AQI (US)
22nd February 2026
30AQI (US)
23rd February 2026
10AQI (US)
24th February 2026
11AQI (US)
25th February 2026
30AQI (US)
26th February 2026
22AQI (US)
27th February 2026
42AQI (US)
28th February 2026
46AQI (US)
1st March 2026
27AQI (US)
2nd March 2026
44AQI (US)
3rd March 2026
42AQI (US)
4th March 2026
46AQI (US)
5th March 2026
44AQI (US)
6th March 2026
35AQI (US)
7th March 2026
38AQI (US)
8th March 2026
46AQI (US)
9th March 2026
47AQI (US)
10th March 2026
38AQI (US)
11th March 2026
40AQI (US)
12th March 2026
42AQI (US)
13th March 2026
43AQI (US)
14th March 2026
44AQI (US)
15th March 2026
44AQI (US)
16th March 2026
47AQI (US)
17th March 2026
36AQI (US)
18th March 2026
36AQI (US)
19th March 2026
36AQI (US)
20th March 2026
30AQI (US)
21st March 2026
40AQI (US)
22nd March 2026
14AQI (US)
23rd March 2026
19AQI (US)
24th March 2026
35AQI (US)
25th March 2026
46AQI (US)
26th March 2026
30AQI (US)
27th March 2026
28AQI (US)
28th March 2026
20AQI (US)
29th March 2026
44AQI (US)
30th March 2026
36AQI (US)
31st March 2026
46AQI (US)
1st April 2026
17AQI (US)
2nd April 2026
26AQI (US)
3rd April 2026
32AQI (US)
4th April 2026
32AQI (US)
5th April 2026
38AQI (US)
6th April 2026
32AQI (US)
7th April 2026
32AQI (US)
8th April 2026
17AQI (US)
9th April 2026
18AQI (US)
10th April 2026
29AQI (US)
11th April 2026
20AQI (US)
12th April 2026
14AQI (US)
13th April 2026
26AQI (US)
14th April 2026
11AQI (US)
15th April 2026
12AQI (US)
16th April 2026
36AQI (US)
17th April 2026
18th April 2026
14AQI (US)
19th April 2026
24AQI (US)
20th April 2026
28AQI (US)
21st April 2026
11AQI (US)
22nd April 2026
23rd April 2026
41AQI (US)
24th April 2026
44AQI (US)
25th April 2026
44AQI (US)
26th April 2026
45AQI (US)
27th April 2026
42AQI (US)
28th April 2026
28AQI (US)
29th April 2026
26AQI (US)
30th April 2026
40AQI (US)
1st May 2026
30AQI (US)
2nd May 2026
34AQI (US)
3rd May 2026
26AQI (US)
4th May 2026
19AQI (US)
5th May 2026
18AQI (US)
6th May 2026
28AQI (US)
7th May 2026
11AQI (US)
8th May 2026
7AQI (US)
9th May 2026
10th May 2026
25AQI (US)
11th May 2026
26AQI (US)
12th May 2026
28AQI (US)
13th May 2026
23AQI (US)
14th May 2026
27AQI (US)
15th May 2026
28AQI (US)
16th May 2026
72AQI (US)
17th May 2026
55AQI (US)
18th May 2026
47AQI (US)
19th May 2026
44AQI (US)
20th May 2026
57AQI (US)
21st May 2026
48AQI (US)
22nd May 2026
46AQI (US)
23rd May 2026
43AQI (US)
24th May 2026
48AQI (US)
25th May 2026
36AQI (US)
26th May 2026
30AQI (US)
27th May 2026
17AQI (US)
28th May 2026
22AQI (US)
29th May 2026
22AQI (US)
30th May 2026
22AQI (US)
31st May 2026
22AQI (US)
1st June 2026
20AQI (US)
2nd June 2026
28AQI (US)
3rd June 2026
24AQI (US)
4th June 2026
24AQI (US)
5th June 2026
23AQI (US)
6th June 2026
25AQI (US)
7th June 2026
35AQI (US)
8th June 2026
11AQI (US)
9th June 2026
14AQI (US)
10th June 2026
20AQI (US)
11th June 2026
22AQI (US)
12th June 2026
18AQI (US)
13th June 2026
23AQI (US)
14th June 2026
15AQI (US)
15th June 2026
20AQI (US)
16th June 2026
23AQI (US)
17th June 2026
14AQI (US)
18th June 2026
24AQI (US)
19th June 2026
24AQI (US)
20th June 2026
19AQI (US)
21st June 2026
20AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
20AQI (US)
25th June 2026
21AQI (US)
26th June 2026
24AQI (US)
27th June 2026
38AQI (US)
28th June 2026
26AQI (US)
29th June 2026
22AQI (US)
30th June 2026
20AQI (US)
1st July 2026
21AQI (US)
2nd July 2026
21AQI (US)
3rd July 2026
18AQI (US)
4th July 2026
18AQI (US)
5th July 2026
14AQI (US)
6th July 2026
14AQI (US)
7th July 2026
14AQI (US)
8th July 2026
15AQI (US)
9th July 2026
20AQI (US)
10th July 2026
15AQI (US)
11th July 2026
14AQI (US)
12th July 2026
22AQI (US)
13th July 2026
17AQI (US)
14th July 2026
18AQI (US)
15th July 2026
22AQI (US)
16th July 2026
14AQI (US)
17th July 2026
14AQI (US)
18th July 2026
20AQI (US)
19th July 2026
20AQI (US)
20th July 2026
24AQI (US)
21st July 2026
26AQI (US)
22nd July 2026
18AQI (US)
23rd July 2026
17AQI (US)
24th July 2026
14AQI (US)
25th July 2026
16AQI (US)
26th July 2026
20AQI (US)
27th July 2026
20AQI (US)
28th July 2026
16AQI (US)
29th July 2026
12AQI (US)
30th July 2026
13AQI (US)
31st July 2026
18AQI (US)
1st August 2026
17AQI (US)
2nd August 2026
34AQI (US)
3rd August 2026
41AQI (US)
4th August 2026
17AQI (US)
5th August 2026
13AQI (US)
6th August 2026
16AQI (US)
7th August 2026
18AQI (US)
8th August 2026
16AQI (US)
9th August 2026
19AQI (US)
10th August 2026
16AQI (US)
11th August 2026
18AQI (US)
12th August 2026
26AQI (US)
13th August 2026
32AQI (US)
14th August 2026
25AQI (US)
15th August 2026
17AQI (US)
16th August 2026
21AQI (US)
17th August 2026
21AQI (US)
18th August 2026
26AQI (US)
19th August 2026
15AQI (US)
20th August 2026
17AQI (US)
21st August 2026
16AQI (US)
22nd August 2026
16AQI (US)
23rd August 2026
12AQI (US)
24th August 2026
14AQI (US)
25th August 2026
18AQI (US)
26th August 2026
14AQI (US)
27th August 2026
16AQI (US)
28th August 2026
18AQI (US)
29th August 2026
13AQI (US)
30th August 2026
17AQI (US)
31st August 2026
19AQI (US)
1st September 2026
14AQI (US)
2nd September 2026
19AQI (US)
3rd September 2026
14AQI (US)
4th September 2026
21AQI (US)
5th September 2026
20AQI (US)
6th September 2026
18AQI (US)
7th September 2026
13AQI (US)
8th September 2026
18AQI (US)
9th September 2026
16AQI (US)
10th September 2026
16AQI (US)
11th September 2026
15AQI (US)
12th September 2026
26AQI (US)
13th September 2026
30AQI (US)
14th September 2026
15AQI (US)
15th September 2026
18AQI (US)
16th September 2026
18AQI (US)
17th September 2026
22AQI (US)
18th September 2026
18AQI (US)
19th September 2026
26AQI (US)
20th September 2026
19AQI (US)
21st September 2026
18AQI (US)
22nd September 2026
23AQI (US)
23rd September 2026
16AQI (US)
24th September 2026
16AQI (US)
25th September 2026
16AQI (US)
26th September 2026
12AQI (US)
27th September 2026
20AQI (US)
28th September 2026
13AQI (US)
29th September 2026
16AQI (US)
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

26AQI (US)

34AQI (US)

38AQI (US)

28AQI (US)

32AQI (US)

22AQI (US)

18AQI (US)

19AQI (US)

18AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202626AQI (US)

31
28
31
28
27
3
30
31
31
29
266
3

Highest AQI (US) recorded in

March

38AQI (US)

Lowest AQI (US) recorded in

September

18AQI (US)

202527AQI (US)

29
2
25
3
28
3
30
31
30
31
31
30
26
5
30
31
352
13

Highest AQI (US) recorded in

October

34AQI (US)

Lowest AQI (US) recorded in

April

19AQI (US)

202418AQI (US)

29
29
31
30
29
30
31
30
30
30
1
29
1
31
359
2

Highest AQI (US) recorded in

December

27AQI (US)

Lowest AQI (US) recorded in

May

15AQI (US)

202316AQI (US)

31
27
28
29
31
30
31
31
30
31
27
31
357

Highest AQI (US) recorded in

October

18AQI (US)

Lowest AQI (US) recorded in

April

13AQI (US)

202214AQI (US)

31
17
31
23
1
31
30
24
1
28
31
30
22
299
1

Highest AQI (US) recorded in

February

18AQI (US)

Lowest AQI (US) recorded in

November

13AQI (US)

202127AQI (US)

28
2
26
2
31
19
6
1
1
27
2
22
8
31
30
1
29
1
4
24
31
302
22
1
1

Highest AQI (US) recorded in

June

42AQI (US)

Lowest AQI (US) recorded in

December

14AQI (US)

202030AQI (US)

12
20
1
8
7
1
24
5
31
30
1
26
27
4
30
28
3
236
21
1

Highest AQI (US) recorded in

May

52AQI (US)

Lowest AQI (US) recorded in

September

19AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2020(Avg.)
30AQI (US)
Least Polluted Year Recorded
2022(Avg.)
14AQI (US)

Perth's annual 2026 AQI (US) (26) shows an average percentage change of 28.6% (worsened AQI (US)) compared to previous years: 2020 (30), 2021 (27), 2022 (14), 2023 (16), 2024 (18), 2025 (27).