Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Saint Denis, Reunion, France 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+

July Air Quality Analysis

Saint Denis, Reunion, France

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
28th Jul 2024
80AQI
Lowest AQI recorded on
9th Jul 2026
15AQI

Same Day Analysis (29th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 31 of Good air quality, showing improvement over 2025 and 2024 on the same day.

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

Saint Denis, Reunion, France

AQI
Day
Night
.

6 AM28th Jul 2026

5 PM

5 AM29th Jul 2026

Day time
Avg. Highest Time
7AM28th Jul

42AQI

Avg. Lowest Time
3PM28th Jul

22AQI

Night time
Avg. Highest Time
9PM28th Jul

32AQI

Avg. Lowest Time
6PM28th Jul

27AQI

In the last 24 hours,

Saint Denis's AQI reached its highest point of 42 at 7 AM during the Day, while the lowest point, 22, was recorded at 3 PM during the Day between 28th Jul and 29th Jul 2026.

Day & Night AQI Trend : Jun - Jul 2026

Saint Denis, Reunion, France

JunJul
30th - 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
30th Jun 2026236 AMAQI
30th Jun 2026227 AMAQI
30th Jun 2026228 AMAQI
30th Jun 2026219 AMAQI
30th Jun 20262110 AMAQI
30th Jun 20262111 AMAQI
30th Jun 20262212 PMAQI
30th Jun 2026211 PMAQI
30th Jun 2026222 PMAQI
30th Jun 2026223 PMAQI
30th Jun 2026234 PMAQI
30th Jun 2026225 PMAQI
30th Jun 2026276 PMAQI
30th Jun 2026297 PMAQI
30th Jun 2026288 PMAQI
30th Jun 2026309 PMAQI
30th Jun 20263010 PMAQI
30th Jun 20262811 PMAQI
1st Jul 20262712 AMAQI
1st Jul 2026231 AMAQI
1st Jul 2026182 AMAQI
1st Jul 2026143 AMAQI
1st Jul 2026184 AMAQI
1st Jul 2026205 AMAQI

20°C18/22°C

1st Jul 2026226 AMAQI
1st Jul 2026257 AMAQI
1st Jul 2026238 AMAQI
1st Jul 2026239 AMAQI
1st Jul 20262110 AMAQI
1st Jul 20262311 AMAQI
1st Jul 20262112 PMAQI
1st Jul 2026211 PMAQI
1st Jul 2026222 PMAQI
1st Jul 2026223 PMAQI
1st Jul 2026244 PMAQI
1st Jul 2026255 PMAQI
1st Jul 2026266 PMAQI
1st Jul 2026247 PMAQI
1st Jul 2026268 PMAQI
1st Jul 2026269 PMAQI
1st Jul 20262410 PMAQI
1st Jul 20262311 PMAQI
2nd Jul 20262312 AMAQI
2nd Jul 2026221 AMAQI
2nd Jul 2026222 AMAQI
2nd Jul 2026233 AMAQI
2nd Jul 2026224 AMAQI
2nd Jul 2026235 AMAQI

19°C14/22°C

2nd Jul 2026176 AMAQI
2nd Jul 2026217 AMAQI
2nd Jul 2026188 AMAQI
2nd Jul 2026199 AMAQI
2nd Jul 20262010 AMAQI
2nd Jul 20262111 AMAQI
2nd Jul 20262212 PMAQI
2nd Jul 2026231 PMAQI
2nd Jul 2026232 PMAQI
2nd Jul 2026193 PMAQI
2nd Jul 2026244 PMAQI
2nd Jul 2026245 PMAQI
2nd Jul 2026236 PMAQI
2nd Jul 2026247 PMAQI
2nd Jul 2026218 PMAQI
2nd Jul 2026239 PMAQI
2nd Jul 20262410 PMAQI
2nd Jul 20262211 PMAQI
3rd Jul 20262512 AMAQI
3rd Jul 2026241 AMAQI
3rd Jul 2026192 AMAQI
3rd Jul 2026233 AMAQI
3rd Jul 2026204 AMAQI
3rd Jul 2026225 AMAQI

19°C15/22°C

3rd Jul 2026216 AMAQI
3rd Jul 2026217 AMAQI
3rd Jul 2026238 AMAQI
3rd Jul 2026259 AMAQI
3rd Jul 20262010 AMAQI
3rd Jul 20261011 AMAQI
3rd Jul 2026912 PMAQI
3rd Jul 2026101 PMAQI
3rd Jul 2026142 PMAQI
3rd Jul 2026223 PMAQI
3rd Jul 2026244 PMAQI
3rd Jul 2026255 PMAQI
3rd Jul 2026246 PMAQI
3rd Jul 2026267 PMAQI
3rd Jul 2026258 PMAQI
3rd Jul 2026269 PMAQI
3rd Jul 20262510 PMAQI
3rd Jul 20262311 PMAQI
4th Jul 20262512 AMAQI
4th Jul 2026241 AMAQI
4th Jul 2026232 AMAQI
4th Jul 2026243 AMAQI
4th Jul 2026234 AMAQI
4th Jul 2026165 AMAQI

21°C18/23°C

4th Jul 2026216 AMAQI
4th Jul 2026217 AMAQI
4th Jul 2026228 AMAQI
4th Jul 2026219 AMAQI
4th Jul 20262310 AMAQI
4th Jul 20262111 AMAQI
4th Jul 20261412 PMAQI
4th Jul 202691 PMAQI
4th Jul 202662 PMAQI
4th Jul 2026233 PMAQI
4th Jul 2026234 PMAQI
4th Jul 2026245 PMAQI
4th Jul 2026236 PMAQI
4th Jul 2026247 PMAQI
4th Jul 2026248 PMAQI
4th Jul 2026229 PMAQI
4th Jul 20262210 PMAQI
4th Jul 20262211 PMAQI
5th Jul 20262312 AMAQI
5th Jul 2026231 AMAQI
5th Jul 2026222 AMAQI
5th Jul 2026223 AMAQI
5th Jul 2026174 AMAQI
5th Jul 2026185 AMAQI

21°C18/23°C

5th Jul 2026176 AMAQI
5th Jul 2026187 AMAQI
5th Jul 2026188 AMAQI
5th Jul 2026179 AMAQI
5th Jul 20262210 AMAQI
5th Jul 20262111 AMAQI
5th Jul 20262212 PMAQI
5th Jul 2026221 PMAQI
5th Jul 2026182 PMAQI
5th Jul 2026203 PMAQI
5th Jul 2026174 PMAQI
5th Jul 2026175 PMAQI
5th Jul 2026146 PMAQI
5th Jul 2026177 PMAQI
5th Jul 2026248 PMAQI
5th Jul 2026239 PMAQI
5th Jul 20261910 PMAQI
5th Jul 20262111 PMAQI
6th Jul 20261612 AMAQI
6th Jul 2026151 AMAQI
6th Jul 2026132 AMAQI
6th Jul 2026153 AMAQI
6th Jul 2026134 AMAQI
6th Jul 2026205 AMAQI

20°C18/23°C

6th Jul 2026166 AMAQI
6th Jul 2026147 AMAQI
6th Jul 2026138 AMAQI
6th Jul 2026119 AMAQI
6th Jul 20261210 AMAQI
6th Jul 20261411 AMAQI
6th Jul 20261712 PMAQI
6th Jul 2026171 PMAQI
6th Jul 2026202 PMAQI
6th Jul 2026243 PMAQI
6th Jul 2026244 PMAQI
6th Jul 2026255 PMAQI
6th Jul 2026266 PMAQI
6th Jul 2026267 PMAQI
6th Jul 2026258 PMAQI
6th Jul 2026289 PMAQI
6th Jul 20262410 PMAQI
6th Jul 20262211 PMAQI
7th Jul 20262312 AMAQI
7th Jul 2026201 AMAQI
7th Jul 2026212 AMAQI
7th Jul 2026243 AMAQI
7th Jul 2026204 AMAQI
7th Jul 2026205 AMAQI

19°C18/21°C

7th Jul 2026196 AMAQI
7th Jul 2026177 AMAQI
7th Jul 2026158 AMAQI
7th Jul 2026129 AMAQI
7th Jul 20262010 AMAQI
7th Jul 20262311 AMAQI
7th Jul 20262512 PMAQI
7th Jul 2026201 PMAQI
7th Jul 2026162 PMAQI
7th Jul 2026363 PMAQI
7th Jul 2026284 PMAQI
7th Jul 2026265 PMAQI
7th Jul 2026256 PMAQI
7th Jul 2026287 PMAQI
7th Jul 2026278 PMAQI
7th Jul 2026209 PMAQI
7th Jul 20261910 PMAQI
7th Jul 20262011 PMAQI
8th Jul 20262312 AMAQI
8th Jul 2026201 AMAQI
8th Jul 2026132 AMAQI
8th Jul 2026203 AMAQI
8th Jul 2026254 AMAQI
8th Jul 2026265 AMAQI

19°C17/20°C

8th Jul 2026286 AMAQI
8th Jul 2026247 AMAQI
8th Jul 2026248 AMAQI
8th Jul 2026189 AMAQI
8th Jul 20261810 AMAQI
8th Jul 20261911 AMAQI
8th Jul 20262212 PMAQI
8th Jul 2026181 PMAQI
8th Jul 2026162 PMAQI
8th Jul 2026143 PMAQI
8th Jul 2026184 PMAQI
8th Jul 2026205 PMAQI
8th Jul 2026176 PMAQI
8th Jul 2026247 PMAQI
8th Jul 2026248 PMAQI
8th Jul 2026189 PMAQI
8th Jul 20261110 PMAQI
8th Jul 20261811 PMAQI
9th Jul 20261612 AMAQI
9th Jul 2026121 AMAQI
9th Jul 2026132 AMAQI
9th Jul 2026113 AMAQI
9th Jul 202694 AMAQI
9th Jul 2026105 AMAQI

19°C17/21°C

9th Jul 2026116 AMAQI
9th Jul 202667 AMAQI
9th Jul 202668 AMAQI
9th Jul 202669 AMAQI
9th Jul 2026710 AMAQI
9th Jul 2026711 AMAQI
9th Jul 20261512 PMAQI
9th Jul 2026151 PMAQI
9th Jul 2026112 PMAQI
9th Jul 2026193 PMAQI
9th Jul 2026204 PMAQI
9th Jul 2026235 PMAQI
9th Jul 2026276 PMAQI
9th Jul 2026277 PMAQI
9th Jul 2026278 PMAQI
9th Jul 2026269 PMAQI
9th Jul 20262310 PMAQI
9th Jul 20262411 PMAQI
10th Jul 20262512 AMAQI
10th Jul 2026221 AMAQI
10th Jul 2026232 AMAQI
10th Jul 2026233 AMAQI
10th Jul 2026234 AMAQI
10th Jul 2026275 AMAQI

21°C19/23°C

10th Jul 2026216 AMAQI
10th Jul 2026187 AMAQI
10th Jul 2026238 AMAQI
10th Jul 2026189 AMAQI
10th Jul 20261910 AMAQI
10th Jul 20262011 AMAQI
10th Jul 20262712 PMAQI
10th Jul 2026241 PMAQI
10th Jul 2026282 PMAQI
10th Jul 2026273 PMAQI
10th Jul 2026284 PMAQI
10th Jul 2026305 PMAQI
10th Jul 2026286 PMAQI
10th Jul 2026307 PMAQI
10th Jul 2026188 PMAQI
10th Jul 2026169 PMAQI
10th Jul 20262010 PMAQI
10th Jul 20262311 PMAQI
11th Jul 20262312 AMAQI
11th Jul 2026191 AMAQI
11th Jul 2026162 AMAQI
11th Jul 2026233 AMAQI
11th Jul 2026214 AMAQI
11th Jul 2026175 AMAQI

20°C16/23°C

11th Jul 2026116 AMAQI
11th Jul 2026127 AMAQI
11th Jul 2026128 AMAQI
11th Jul 2026209 AMAQI
11th Jul 20262010 AMAQI
11th Jul 20262211 AMAQI
11th Jul 20262812 PMAQI
11th Jul 2026251 PMAQI
11th Jul 2026262 PMAQI
11th Jul 2026253 PMAQI
11th Jul 2026284 PMAQI
11th Jul 2026275 PMAQI
11th Jul 2026296 PMAQI
11th Jul 2026297 PMAQI
11th Jul 2026298 PMAQI
11th Jul 2026299 PMAQI
11th Jul 20262810 PMAQI
11th Jul 20262611 PMAQI
12th Jul 20262412 AMAQI
12th Jul 2026241 AMAQI
12th Jul 2026272 AMAQI
12th Jul 2026253 AMAQI
12th Jul 2026284 AMAQI
12th Jul 2026285 AMAQI

21°C17/24°C

12th Jul 2026196 AMAQI
12th Jul 2026177 AMAQI
12th Jul 2026218 AMAQI
12th Jul 2026169 AMAQI
12th Jul 20261710 AMAQI
12th Jul 20262211 AMAQI
12th Jul 20262512 PMAQI
12th Jul 2026231 PMAQI
12th Jul 2026252 PMAQI
12th Jul 2026253 PMAQI
12th Jul 2026274 PMAQI
12th Jul 2026275 PMAQI
12th Jul 2026276 PMAQI
12th Jul 2026287 PMAQI
12th Jul 2026198 PMAQI
12th Jul 2026239 PMAQI
12th Jul 20262610 PMAQI
12th Jul 20262411 PMAQI
13th Jul 20262412 AMAQI
13th Jul 2026281 AMAQI
13th Jul 2026262 AMAQI
13th Jul 2026293 AMAQI
13th Jul 2026274 AMAQI
13th Jul 2026275 AMAQI

22°C21/23°C

13th Jul 2026196 AMAQI
13th Jul 2026247 AMAQI
13th Jul 2026218 AMAQI
13th Jul 2026209 AMAQI
13th Jul 20261610 AMAQI
13th Jul 20261511 AMAQI
13th Jul 20261812 PMAQI
13th Jul 2026261 PMAQI
13th Jul 2026262 PMAQI
13th Jul 2026253 PMAQI
13th Jul 2026284 PMAQI
13th Jul 2026285 PMAQI
13th Jul 2026146 PMAQI
13th Jul 2026147 PMAQI
13th Jul 2026228 PMAQI
13th Jul 2026279 PMAQI
13th Jul 20261910 PMAQI
13th Jul 20261811 PMAQI
14th Jul 20262412 AMAQI
14th Jul 2026241 AMAQI
14th Jul 2026292 AMAQI
14th Jul 2026253 AMAQI
14th Jul 2026304 AMAQI
14th Jul 2026295 AMAQI

21°C20/23°C

14th Jul 2026236 AMAQI
14th Jul 2026197 AMAQI
14th Jul 2026178 AMAQI
14th Jul 2026129 AMAQI
14th Jul 20261410 AMAQI
14th Jul 20261211 AMAQI
14th Jul 20262012 PMAQI
14th Jul 2026271 PMAQI
14th Jul 2026162 PMAQI
14th Jul 2026233 PMAQI
14th Jul 2026234 PMAQI
14th Jul 2026115 PMAQI
14th Jul 2026136 PMAQI
14th Jul 2026307 PMAQI
14th Jul 2026298 PMAQI
14th Jul 2026279 PMAQI
14th Jul 20262910 PMAQI
14th Jul 20262411 PMAQI
15th Jul 20262812 AMAQI
15th Jul 2026231 AMAQI
15th Jul 2026302 AMAQI
15th Jul 2026243 AMAQI
15th Jul 2026274 AMAQI
15th Jul 2026285 AMAQI

22°C21/23°C

15th Jul 2026236 AMAQI
15th Jul 2026217 AMAQI
15th Jul 2026198 AMAQI
15th Jul 2026199 AMAQI
15th Jul 20261410 AMAQI
15th Jul 20261111 AMAQI
15th Jul 20261112 PMAQI
15th Jul 2026141 PMAQI
15th Jul 2026102 PMAQI
15th Jul 2026103 PMAQI
15th Jul 2026104 PMAQI
15th Jul 2026115 PMAQI
15th Jul 2026126 PMAQI
15th Jul 2026127 PMAQI
15th Jul 2026128 PMAQI
15th Jul 2026169 PMAQI
15th Jul 20261910 PMAQI
15th Jul 20261911 PMAQI
16th Jul 20262112 AMAQI
16th Jul 2026201 AMAQI
16th Jul 2026192 AMAQI
16th Jul 2026223 AMAQI
16th Jul 2026254 AMAQI
16th Jul 2026265 AMAQI

22°C21/24°C

16th Jul 2026186 AMAQI
16th Jul 2026187 AMAQI
16th Jul 2026228 AMAQI
16th Jul 2026229 AMAQI
16th Jul 20261910 AMAQI
16th Jul 20262111 AMAQI
16th Jul 20262312 PMAQI
16th Jul 2026261 PMAQI
16th Jul 2026232 PMAQI
16th Jul 2026213 PMAQI
16th Jul 2026254 PMAQI
16th Jul 2026265 PMAQI
16th Jul 2026286 PMAQI
16th Jul 2026277 PMAQI
16th Jul 2026288 PMAQI
16th Jul 2026249 PMAQI
16th Jul 20262610 PMAQI
16th Jul 20262311 PMAQI
17th Jul 20262412 AMAQI
17th Jul 2026211 AMAQI
17th Jul 2026232 AMAQI
17th Jul 2026203 AMAQI
17th Jul 2026174 AMAQI
17th Jul 2026125 AMAQI

22°C19/24°C

17th Jul 2026126 AMAQI
17th Jul 2026207 AMAQI
17th Jul 2026228 AMAQI
17th Jul 2026229 AMAQI
17th Jul 20261910 AMAQI
17th Jul 20263111 AMAQI
17th Jul 20262812 PMAQI
17th Jul 2026271 PMAQI
17th Jul 2026262 PMAQI
17th Jul 2026283 PMAQI
17th Jul 2026264 PMAQI
17th Jul 2026295 PMAQI
17th Jul 2026256 PMAQI
17th Jul 2026277 PMAQI
17th Jul 2026278 PMAQI
17th Jul 2026279 PMAQI
17th Jul 20262710 PMAQI
17th Jul 20262611 PMAQI
18th Jul 20262712 AMAQI
18th Jul 2026281 AMAQI
18th Jul 2026302 AMAQI
18th Jul 2026293 AMAQI
18th Jul 2026304 AMAQI
18th Jul 2026335 AMAQI

22°C19/24°C

18th Jul 2026306 AMAQI
18th Jul 2026307 AMAQI
18th Jul 2026258 AMAQI
18th Jul 2026239 AMAQI
18th Jul 20262410 AMAQI
18th Jul 20262811 AMAQI
18th Jul 20262812 PMAQI
18th Jul 2026281 PMAQI
18th Jul 2026272 PMAQI
18th Jul 2026303 PMAQI
18th Jul 2026394 PMAQI
18th Jul 2026495 PMAQI
18th Jul 2026486 PMAQI
18th Jul 2026457 PMAQI
18th Jul 2026418 PMAQI
18th Jul 2026349 PMAQI
18th Jul 20263310 PMAQI
18th Jul 20263611 PMAQI
19th Jul 20263912 AMAQI
19th Jul 2026351 AMAQI
19th Jul 2026332 AMAQI
19th Jul 2026353 AMAQI
19th Jul 2026344 AMAQI
19th Jul 2026365 AMAQI

20°C16/22°C

19th Jul 2026346 AMAQI
19th Jul 2026277 AMAQI
19th Jul 2026288 AMAQI
19th Jul 2026249 AMAQI
19th Jul 20263210 AMAQI
19th Jul 20262311 AMAQI
19th Jul 20261812 PMAQI
19th Jul 2026301 PMAQI
19th Jul 2026282 PMAQI
19th Jul 2026293 PMAQI
19th Jul 2026274 PMAQI
19th Jul 2026275 PMAQI
19th Jul 2026276 PMAQI
19th Jul 2026237 PMAQI
19th Jul 2026308 PMAQI
19th Jul 2026319 PMAQI
19th Jul 20262610 PMAQI
19th Jul 20262211 PMAQI
20th Jul 20262212 AMAQI
20th Jul 2026301 AMAQI
20th Jul 2026512 AMAQI
20th Jul 2026203 AMAQI
20th Jul 2026214 AMAQI
20th Jul 2026235 AMAQI

20°C18/22°C

20th Jul 2026206 AMAQI
20th Jul 2026207 AMAQI
20th Jul 2026198 AMAQI
20th Jul 2026219 AMAQI
20th Jul 20262210 AMAQI
20th Jul 20262511 AMAQI
20th Jul 20262512 PMAQI
20th Jul 2026381 PMAQI
20th Jul 2026372 PMAQI
20th Jul 2026293 PMAQI
20th Jul 2026304 PMAQI
20th Jul 2026325 PMAQI
20th Jul 2026306 PMAQI
20th Jul 2026307 PMAQI
20th Jul 2026298 PMAQI
20th Jul 2026299 PMAQI
20th Jul 20263110 PMAQI
20th Jul 20262711 PMAQI
21st Jul 20263012 AMAQI
21st Jul 2026301 AMAQI
21st Jul 2026312 AMAQI
21st Jul 2026303 AMAQI
21st Jul 2026314 AMAQI
21st Jul 2026305 AMAQI

20°C18/22°C

21st Jul 2026296 AMAQI
21st Jul 2026278 AMAQI
21st Jul 2026289 AMAQI
21st Jul 20262810 AMAQI
21st Jul 20263011 AMAQI
21st Jul 20263212 PMAQI
21st Jul 2026311 PMAQI
21st Jul 2026782 PMAQI
21st Jul 2026323 PMAQI
21st Jul 2026294 PMAQI
21st Jul 2026275 PMAQI
21st Jul 2026286 PMAQI
21st Jul 2026287 PMAQI
21st Jul 2026278 PMAQI
21st Jul 2026289 PMAQI
21st Jul 20263010 PMAQI
21st Jul 20263211 PMAQI
22nd Jul 20263712 AMAQI
22nd Jul 2026451 AMAQI
22nd Jul 2026432 AMAQI
22nd Jul 2026403 AMAQI
22nd Jul 2026354 AMAQI
22nd Jul 2026325 AMAQI

21°C20/22°C

22nd Jul 2026346 AMAQI
22nd Jul 2026337 AMAQI
22nd Jul 2026318 AMAQI
22nd Jul 2026319 AMAQI
22nd Jul 20263110 AMAQI
22nd Jul 20263311 AMAQI
22nd Jul 20263612 PMAQI
22nd Jul 2026381 PMAQI
22nd Jul 2026382 PMAQI
22nd Jul 2026303 PMAQI
22nd Jul 2026314 PMAQI
22nd Jul 2026355 PMAQI
22nd Jul 2026336 PMAQI
22nd Jul 2026317 PMAQI
22nd Jul 2026328 PMAQI
22nd Jul 2026319 PMAQI
22nd Jul 20263210 PMAQI
22nd Jul 20263211 PMAQI
23rd Jul 20262912 AMAQI
23rd Jul 2026301 AMAQI
23rd Jul 2026302 AMAQI
23rd Jul 2026293 AMAQI
23rd Jul 2026304 AMAQI
23rd Jul 2026325 AMAQI

21°C17/23°C

23rd Jul 2026306 AMAQI
23rd Jul 2026307 AMAQI
23rd Jul 2026308 AMAQI
23rd Jul 2026309 AMAQI
23rd Jul 20262810 AMAQI
23rd Jul 20262811 AMAQI
23rd Jul 20262912 PMAQI
23rd Jul 2026291 PMAQI
23rd Jul 2026292 PMAQI
23rd Jul 2026343 PMAQI
23rd Jul 2026294 PMAQI
23rd Jul 2026285 PMAQI
23rd Jul 2026316 PMAQI
23rd Jul 2026357 PMAQI
23rd Jul 2026368 PMAQI
23rd Jul 2026349 PMAQI
23rd Jul 20264810 PMAQI
23rd Jul 20264511 PMAQI
24th Jul 20264212 AMAQI
24th Jul 2026421 AMAQI
24th Jul 2026472 AMAQI
24th Jul 2026423 AMAQI
24th Jul 2026374 AMAQI
24th Jul 2026345 AMAQI

20°C18/22°C

24th Jul 2026346 AMAQI
24th Jul 2026317 AMAQI
24th Jul 2026288 AMAQI
24th Jul 2026309 AMAQI
24th Jul 20263010 AMAQI
24th Jul 20263111 AMAQI
24th Jul 20262912 PMAQI
24th Jul 2026251 PMAQI
24th Jul 2026252 PMAQI
24th Jul 2026293 PMAQI
24th Jul 2026274 PMAQI
24th Jul 2026255 PMAQI
24th Jul 2026246 PMAQI
24th Jul 2026257 PMAQI
24th Jul 2026288 PMAQI
24th Jul 2026339 PMAQI
24th Jul 20262910 PMAQI
24th Jul 20263211 PMAQI
25th Jul 20263512 AMAQI
25th Jul 2026291 AMAQI
25th Jul 2026272 AMAQI
25th Jul 2026253 AMAQI
25th Jul 2026254 AMAQI
25th Jul 2026265 AMAQI

20°C17/22°C

25th Jul 2026356 AMAQI
25th Jul 2026417 AMAQI
25th Jul 2026408 AMAQI
25th Jul 2026349 AMAQI
25th Jul 20263410 AMAQI
25th Jul 20263111 AMAQI
25th Jul 20263612 PMAQI
25th Jul 2026281 PMAQI
25th Jul 2026262 PMAQI
25th Jul 2026243 PMAQI
25th Jul 2026254 PMAQI
25th Jul 2026285 PMAQI
25th Jul 2026266 PMAQI
25th Jul 2026337 PMAQI
25th Jul 2026318 PMAQI
25th Jul 2026379 PMAQI
25th Jul 20264110 PMAQI
25th Jul 20262911 PMAQI
26th Jul 20263112 AMAQI
26th Jul 2026351 AMAQI
26th Jul 2026372 AMAQI
26th Jul 2026313 AMAQI
26th Jul 2026324 AMAQI
26th Jul 2026305 AMAQI

21°C17/24°C

26th Jul 2026306 AMAQI
26th Jul 2026287 AMAQI
26th Jul 2026298 AMAQI
26th Jul 2026299 AMAQI
26th Jul 20262810 AMAQI
26th Jul 20262811 AMAQI
26th Jul 20262712 PMAQI
26th Jul 2026261 PMAQI
26th Jul 2026262 PMAQI
26th Jul 2026263 PMAQI
26th Jul 2026284 PMAQI
26th Jul 2026425 PMAQI
26th Jul 2026356 PMAQI
26th Jul 2026297 PMAQI
26th Jul 2026298 PMAQI
26th Jul 2026239 PMAQI
26th Jul 20263710 PMAQI
26th Jul 20263811 PMAQI
27th Jul 20263012 AMAQI
27th Jul 2026271 AMAQI
27th Jul 2026262 AMAQI
27th Jul 2026253 AMAQI
27th Jul 2026314 AMAQI
27th Jul 2026285 AMAQI

21°C19/23°C

27th Jul 2026296 AMAQI
27th Jul 2026327 AMAQI
27th Jul 2026318 AMAQI
27th Jul 2026359 AMAQI
27th Jul 20263310 AMAQI
27th Jul 20263111 AMAQI
27th Jul 20262812 PMAQI
27th Jul 2026291 PMAQI
27th Jul 2026312 PMAQI
27th Jul 2026293 PMAQI
27th Jul 2026274 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026266 PMAQI
27th Jul 2026307 PMAQI
27th Jul 2026358 PMAQI
27th Jul 2026339 PMAQI
27th Jul 20263410 PMAQI
27th Jul 20263811 PMAQI
28th Jul 20263612 AMAQI
28th Jul 2026381 AMAQI
28th Jul 2026372 AMAQI
28th Jul 2026373 AMAQI
28th Jul 2026334 AMAQI
28th Jul 2026315 AMAQI

20°C17/23°C

28th Jul 2026316 AMAQI
28th Jul 2026427 AMAQI
28th Jul 2026308 AMAQI
28th Jul 2026299 AMAQI
28th Jul 20263510 AMAQI
28th Jul 20263911 AMAQI
28th Jul 20263812 PMAQI
28th Jul 2026261 PMAQI
28th Jul 2026262 PMAQI
28th Jul 2026223 PMAQI
28th Jul 2026234 PMAQI
28th Jul 2026245 PMAQI
28th Jul 2026276 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026298 PMAQI
28th Jul 2026329 PMAQI
28th Jul 20262910 PMAQI
28th Jul 20262911 PMAQI
29th Jul 20262912 AMAQI
29th Jul 2026291 AMAQI
29th Jul 2026312 AMAQI
29th Jul 2026283 AMAQI
29th Jul 2026284 AMAQI
29th Jul 2026325 AMAQI

21°C19/23°C

29th Jul 2026386 AMAQI
6 AM
29th Jul 2026397 AMAQI
29th Jul 2026558 AMAQI
29th Jul 2026379 AMAQI
29th Jul 20262610 AMAQI
29th Jul 20262811 AMAQI
11 AM
29th Jul 20264212 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026282 PMAQI
29th Jul 2026263 PMAQI
29th Jul 2026234 PMAQI
29th Jul 2026265 PMAQI
5 PM
29th Jul 2026286 PMAQI
29th Jul 2026307 PMAQI
29th Jul 2026288 PMAQI
29th Jul 2026299 PMAQI
29th Jul 20262610 PMAQI
29th Jul 20262611 PMAQI
11 PM
5 AM

21°C18/24°C

Day time
Avg. Highest Time
5 PM

26AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
9 AM - 10 AM

22AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 PM to 5 PM (Avg. 26), while the lowest AQI was between 9 AM to 10 AM (Avg. 22).
Night time
Avg. Highest Time
12 AM

27AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM - 5 AM

25AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 27), while the lowest AQI was between 3 AM to 5 AM (Avg. 25).

2026 Days Vs Air Quality

Saint Denis, Reunion, France

2026

87%

181

13%

26

Total number of days with different AQI categories in last 210 days in 2026 (155 days remaining)

Good
181 Days
Moderate
26 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 87%

Health Risk Level:

Low

In 2026, 87% of 210 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.

Annual Air Quality Insights

Saint Denis, Reunion, France

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
35AQI (US)
2nd January 2026
27AQI (US)
3rd January 2026
31AQI (US)
4th January 2026
26AQI (US)
5th January 2026
26AQI (US)
6th January 2026
35AQI (US)
7th January 2026
31AQI (US)
8th January 2026
33AQI (US)
9th January 2026
33AQI (US)
10th January 2026
27AQI (US)
11th January 2026
26AQI (US)
12th January 2026
26AQI (US)
13th January 2026
18AQI (US)
14th January 2026
18AQI (US)
15th January 2026
26AQI (US)
16th January 2026
33AQI (US)
17th January 2026
31AQI (US)
18th January 2026
33AQI (US)
19th January 2026
32AQI (US)
20th January 2026
32AQI (US)
21st January 2026
29AQI (US)
22nd January 2026
32AQI (US)
23rd January 2026
37AQI (US)
24th January 2026
42AQI (US)
25th January 2026
46AQI (US)
26th January 2026
36AQI (US)
27th January 2026
45AQI (US)
28th January 2026
49AQI (US)
29th January 2026
49AQI (US)
30th January 2026
56AQI (US)
31st January 2026
45AQI (US)
1st February 2026
44AQI (US)
2nd February 2026
43AQI (US)
3rd February 2026
40AQI (US)
4th February 2026
50AQI (US)
5th February 2026
46AQI (US)
6th February 2026
47AQI (US)
7th February 2026
57AQI (US)
8th February 2026
51AQI (US)
9th February 2026
52AQI (US)
10th February 2026
23AQI (US)
11th February 2026
43AQI (US)
12th February 2026
57AQI (US)
13th February 2026
38AQI (US)
14th February 2026
55AQI (US)
15th February 2026
42AQI (US)
16th February 2026
49AQI (US)
17th February 2026
27AQI (US)
18th February 2026
17AQI (US)
19th February 2026
10AQI (US)
20th February 2026
30AQI (US)
21st February 2026
50AQI (US)
22nd February 2026
40AQI (US)
23rd February 2026
42AQI (US)
24th February 2026
31AQI (US)
25th February 2026
42AQI (US)
26th February 2026
34AQI (US)
27th February 2026
40AQI (US)
28th February 2026
31AQI (US)
1st March 2026
22AQI (US)
2nd March 2026
38AQI (US)
3rd March 2026
53AQI (US)
4th March 2026
41AQI (US)
5th March 2026
39AQI (US)
6th March 2026
43AQI (US)
7th March 2026
63AQI (US)
8th March 2026
40AQI (US)
9th March 2026
31AQI (US)
10th March 2026
37AQI (US)
11th March 2026
24AQI (US)
12th March 2026
45AQI (US)
13th March 2026
47AQI (US)
14th March 2026
57AQI (US)
15th March 2026
49AQI (US)
16th March 2026
45AQI (US)
17th March 2026
45AQI (US)
18th March 2026
35AQI (US)
19th March 2026
41AQI (US)
20th March 2026
31AQI (US)
21st March 2026
33AQI (US)
22nd March 2026
61AQI (US)
23rd March 2026
59AQI (US)
24th March 2026
40AQI (US)
25th March 2026
41AQI (US)
26th March 2026
50AQI (US)
27th March 2026
57AQI (US)
28th March 2026
40AQI (US)
29th March 2026
42AQI (US)
30th March 2026
38AQI (US)
31st March 2026
48AQI (US)
1st April 2026
44AQI (US)
2nd April 2026
45AQI (US)
3rd April 2026
33AQI (US)
4th April 2026
43AQI (US)
5th April 2026
40AQI (US)
6th April 2026
30AQI (US)
7th April 2026
38AQI (US)
8th April 2026
31AQI (US)
9th April 2026
34AQI (US)
10th April 2026
40AQI (US)
11th April 2026
38AQI (US)
12th April 2026
39AQI (US)
13th April 2026
38AQI (US)
14th April 2026
32AQI (US)
15th April 2026
35AQI (US)
16th April 2026
35AQI (US)
17th April 2026
18th April 2026
33AQI (US)
19th April 2026
33AQI (US)
20th April 2026
39AQI (US)
21st April 2026
37AQI (US)
22nd April 2026
23rd April 2026
49AQI (US)
24th April 2026
41AQI (US)
25th April 2026
42AQI (US)
26th April 2026
41AQI (US)
27th April 2026
48AQI (US)
28th April 2026
52AQI (US)
29th April 2026
56AQI (US)
30th April 2026
38AQI (US)
1st May 2026
49AQI (US)
2nd May 2026
50AQI (US)
3rd May 2026
51AQI (US)
4th May 2026
43AQI (US)
5th May 2026
28AQI (US)
6th May 2026
39AQI (US)
7th May 2026
29AQI (US)
8th May 2026
24AQI (US)
9th May 2026
10th May 2026
27AQI (US)
11th May 2026
31AQI (US)
12th May 2026
44AQI (US)
13th May 2026
46AQI (US)
14th May 2026
33AQI (US)
15th May 2026
38AQI (US)
16th May 2026
70AQI (US)
17th May 2026
61AQI (US)
18th May 2026
69AQI (US)
19th May 2026
68AQI (US)
20th May 2026
55AQI (US)
21st May 2026
57AQI (US)
22nd May 2026
66AQI (US)
23rd May 2026
59AQI (US)
24th May 2026
53AQI (US)
25th May 2026
68AQI (US)
26th May 2026
68AQI (US)
27th May 2026
24AQI (US)
28th May 2026
24AQI (US)
29th May 2026
22AQI (US)
30th May 2026
22AQI (US)
31st May 2026
25AQI (US)
1st June 2026
26AQI (US)
2nd June 2026
30AQI (US)
3rd June 2026
30AQI (US)
4th June 2026
24AQI (US)
5th June 2026
23AQI (US)
6th June 2026
20AQI (US)
7th June 2026
20AQI (US)
8th June 2026
19AQI (US)
9th June 2026
22AQI (US)
10th June 2026
28AQI (US)
11th June 2026
28AQI (US)
12th June 2026
24AQI (US)
13th June 2026
41AQI (US)
14th June 2026
28AQI (US)
15th June 2026
20AQI (US)
16th June 2026
29AQI (US)
17th June 2026
26AQI (US)
18th June 2026
20AQI (US)
19th June 2026
26AQI (US)
20th June 2026
27AQI (US)
21st June 2026
27AQI (US)
22nd June 2026
20AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
19AQI (US)
25th June 2026
23AQI (US)
26th June 2026
36AQI (US)
27th June 2026
28AQI (US)
28th June 2026
25AQI (US)
29th June 2026
23AQI (US)
30th June 2026
23AQI (US)
1st July 2026
23AQI (US)
2nd July 2026
22AQI (US)
3rd July 2026
21AQI (US)
4th July 2026
21AQI (US)
5th July 2026
20AQI (US)
6th July 2026
19AQI (US)
7th July 2026
22AQI (US)
8th July 2026
20AQI (US)
9th July 2026
15AQI (US)
10th July 2026
24AQI (US)
11th July 2026
23AQI (US)
12th July 2026
24AQI (US)
13th July 2026
23AQI (US)
14th July 2026
22AQI (US)
15th July 2026
18AQI (US)
16th July 2026
23AQI (US)
17th July 2026
23AQI (US)
18th July 2026
32AQI (US)
19th July 2026
29AQI (US)
20th July 2026
27AQI (US)
21st July 2026
32AQI (US)
22nd July 2026
34AQI (US)
23rd July 2026
32AQI (US)
24th July 2026
31AQI (US)
25th July 2026
31AQI (US)
26th July 2026
31AQI (US)
27th July 2026
30AQI (US)
28th July 2026
31AQI (US)
29th July 2026
31AQI (US)
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
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

34AQI (US)

40AQI (US)

43AQI (US)

39AQI (US)

45AQI (US)

25AQI (US)

25AQI (US)

No. of days

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

202636AQI (US)

30
1
23
5
25
6
26
2
18
12
30
29
181
26

Highest AQI (US) recorded in

May

45AQI (US)

Lowest AQI (US) recorded in

July

25AQI (US)

202537AQI (US)

30
1
27
1
31
30
31
30
30
1
11
20
19
11
15
16
30
31
315
50

Highest AQI (US) recorded in

August

53AQI (US)

Lowest AQI (US) recorded in

April

27AQI (US)

202430AQI (US)

27
29
31
29
31
29
1
1
30
25
6
30
31
27
3
31
321
40

Highest AQI (US) recorded in

July

63AQI (US)

Lowest AQI (US) recorded in

January

20AQI (US)

202322AQI (US)

31
27
31
30
31
30
31
31
30
31
29
31
363

Highest AQI (US) recorded in

January

28AQI (US)

Lowest AQI (US) recorded in

December

18AQI (US)

202225AQI (US)

31
20
31
30
31
29
1
24
2
29
31
30
31
319
1

Highest AQI (US) recorded in

February

28AQI (US)

Lowest AQI (US) recorded in

July

23AQI (US)

202123AQI (US)

27
28
30
1
30
31
30
31
27
1
30
31
30
31
356
2

Highest AQI (US) recorded in

October

30AQI (US)

Lowest AQI (US) recorded in

February

18AQI (US)

202023AQI (US)

13
21
18
30
31
31
30
31
30
31
266

Highest AQI (US) recorded in

October

26AQI (US)

Lowest AQI (US) recorded in

March

20AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
37AQI (US)
Least Polluted Year Recorded
2023(Avg.)
22AQI (US)

Saint Denis's annual 2026 AQI (US) (36) shows an average percentage change of 39.6% (worsened AQI (US)) compared to previous years: 2020 (23), 2021 (23), 2022 (25), 2023 (22), 2024 (30), 2025 (37).