Yanchep, Western Australia, Australia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Yanchep, Western Australia, Australia
AQI Trends: Highest and Lowest
Same Day Analysis (1st August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 18 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 31st Jul - 1st Aug 2026
Yanchep, Western Australia, Australia
7 AM31st Jul 2026
5 PM
6 AM1st Aug 2026
17AQI
14AQI
19AQI
14AQI
In the last 24 hours,
Yanchep's AQI reached its highest point of 19 at 11 PM during the Night, while the lowest point, 14, was recorded at 5 AM during the Night between 31st Jul and 1st Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Yanchep, Western Australia, Australia
13°C11/17°C
14°C10/18°C
15°C11/19°C
15°C13/18°C
15°C11/19°C
15°C12/20°C
16°C12/20°C
16°C12/18°C
13°C10/17°C
13°C10/17°C
13°C10/17°C
14°C9/20°C
17°C13/23°C
17°C15/21°C
17°C15/19°C
16°C14/16°C
15°C13/17°C
13°C10/16°C
13°C10/15°C
12°C9/16°C
12°C9/17°C
12°C8/17°C
13°C9/19°C
15°C13/17°C
14°C11/17°C
12°C9/17°C
13°C9/19°C
14°C10/20°C
15°C11/20°C
14°C10/16°C
18AQI
14AQI
23AQI
13AQI
2026 Days Vs Air Quality
Yanchep, Western Australia, Australia
98%
205
2%
5
Total number of days with different AQI categories in last 213 days in 2026 (152 days remaining)
Under WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2026, 98% of 213 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
Yanchep, Western Australia, Australia
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI (US)
31AQI (US)
31AQI (US)
26AQI (US)
32AQI (US)
26AQI (US)
31AQI (US)
23AQI (US)
18AQI (US)
24AQI (US)
23AQI (US)
23AQI (US)
16AQI (US)
12AQI (US)
18AQI (US)
26AQI (US)
17AQI (US)
24AQI (US)
57AQI (US)
22AQI (US)
21AQI (US)
32AQI (US)
43AQI (US)
34AQI (US)
38AQI (US)
41AQI (US)
24AQI (US)
20AQI (US)
27AQI (US)
43AQI (US)
31AQI (US)
30AQI (US)
32AQI (US)
47AQI (US)
46AQI (US)
41AQI (US)
29AQI (US)
38AQI (US)
27AQI (US)
33AQI (US)
44AQI (US)
50AQI (US)
38AQI (US)
52AQI (US)
44AQI (US)
34AQI (US)
28AQI (US)
33AQI (US)
32AQI (US)
23AQI (US)
29AQI (US)
37AQI (US)
28AQI (US)
10AQI (US)
11AQI (US)
30AQI (US)
24AQI (US)
45AQI (US)
46AQI (US)
26AQI (US)
48AQI (US)
41AQI (US)
46AQI (US)
44AQI (US)
36AQI (US)
39AQI (US)
48AQI (US)
49AQI (US)
39AQI (US)
40AQI (US)
43AQI (US)
46AQI (US)
48AQI (US)
45AQI (US)
48AQI (US)
38AQI (US)
39AQI (US)
36AQI (US)
31AQI (US)
40AQI (US)
15AQI (US)
20AQI (US)
36AQI (US)
48AQI (US)
30AQI (US)
27AQI (US)
21AQI (US)
46AQI (US)
40AQI (US)
47AQI (US)
17AQI (US)
26AQI (US)
31AQI (US)
31AQI (US)
38AQI (US)
32AQI (US)
33AQI (US)
17AQI (US)
18AQI (US)
30AQI (US)
20AQI (US)
13AQI (US)
26AQI (US)
10AQI (US)
11AQI (US)
37AQI (US)
14AQI (US)
27AQI (US)
29AQI (US)
11AQI (US)
41AQI (US)
44AQI (US)
44AQI (US)
45AQI (US)
43AQI (US)
28AQI (US)
26AQI (US)
41AQI (US)
32AQI (US)
33AQI (US)
26AQI (US)
19AQI (US)
18AQI (US)
29AQI (US)
12AQI (US)
7AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
23AQI (US)
27AQI (US)
28AQI (US)
72AQI (US)
55AQI (US)
46AQI (US)
45AQI (US)
57AQI (US)
48AQI (US)
47AQI (US)
42AQI (US)
46AQI (US)
35AQI (US)
30AQI (US)
16AQI (US)
21AQI (US)
23AQI (US)
22AQI (US)
23AQI (US)
23AQI (US)
31AQI (US)
25AQI (US)
24AQI (US)
23AQI (US)
24AQI (US)
33AQI (US)
11AQI (US)
14AQI (US)
21AQI (US)
23AQI (US)
20AQI (US)
22AQI (US)
15AQI (US)
20AQI (US)
24AQI (US)
15AQI (US)
23AQI (US)
24AQI (US)
19AQI (US)
20AQI (US)
19AQI (US)
22AQI (US)
20AQI (US)
20AQI (US)
26AQI (US)
37AQI (US)
27AQI (US)
22AQI (US)
20AQI (US)
21AQI (US)
21AQI (US)
20AQI (US)
19AQI (US)
14AQI (US)
12AQI (US)
12AQI (US)
15AQI (US)
16AQI (US)
14AQI (US)
12AQI (US)
23AQI (US)
10AQI (US)
16AQI (US)
21AQI (US)
13AQI (US)
14AQI (US)
23AQI (US)
19AQI (US)
19AQI (US)
20AQI (US)
17AQI (US)
18AQI (US)
13AQI (US)
15AQI (US)
22AQI (US)
20AQI (US)
17AQI (US)
12AQI (US)
14AQI (US)
17AQI (US)
18AQI (US)
28AQI (US)
34AQI (US)
39AQI (US)
28AQI (US)
32AQI (US)
22AQI (US)
17AQI (US)
18AQI (US)
No. of days
202628AQI (US)
Highest AQI (US) recorded in
March39AQI (US)
Lowest AQI (US) recorded in
July17AQI (US)
202528AQI (US)
Highest AQI (US) recorded in
October37AQI (US)
Lowest AQI (US) recorded in
April20AQI (US)
202426AQI (US)
Highest AQI (US) recorded in
August31AQI (US)
Lowest AQI (US) recorded in
May23AQI (US)
202325AQI (US)
Highest AQI (US) recorded in
October30AQI (US)
Lowest AQI (US) recorded in
February21AQI (US)
202224AQI (US)
Highest AQI (US) recorded in
February29AQI (US)
Lowest AQI (US) recorded in
August22AQI (US)
202134AQI (US)
Highest AQI (US) recorded in
May51AQI (US)
Lowest AQI (US) recorded in
December22AQI (US)
202020AQI (US)
Highest AQI (US) recorded in
October26AQI (US)
Lowest AQI (US) recorded in
September16AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Yanchep's annual 2026 AQI (US) (28) shows an average percentage change of 9.7% (worsened AQI (US)) compared to previous years: 2020 (20), 2021 (34), 2022 (24), 2023 (25), 2024 (26), 2025 (28).