Geraldton, Western Australia, Australia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Geraldton, Western Australia, Australia
AQI Trends: Highest and Lowest
Same Day Analysis (25th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 28 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 26th Sep - 27th Sep 2025
Geraldton, Western Australia, Australia
6 AM26th Sep 2025
6 PM
5 AM27th Sep 2025
17AQI
12AQI
18AQI
11AQI
In the last 24 hours,
Geraldton's AQI reached its highest point of 18 at 1 AM during the Night, while the lowest point, 11, was recorded at 5 AM during the Night between 26th Sep and 27th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Geraldton, Western Australia, Australia
14°C11/17°C
13°C9/19°C
14°C9/20°C
14°C9/21°C
14°C10/20°C
15°C9/22°C
16°C12/19°C
15°C13/19°C
15°C12/20°C
15°C13/17°C
15°C13/17°C
13°C9/16°C
12°C7/18°C
14°C8/20°C
16°C10/22°C
18°C13/25°C
17°C15/20°C
17°C15/20°C
14°C12/17°C
14°C10/18°C
15°C12/19°C
15°C12/19°C
15°C10/20°C
17°C12/23°C
21°C15/28°C
22°C17/28°C
22°C17/28°C
21°C16/29°C
20°C15/28°C
17°C13/23°C
--°C/°C
25AQI
19AQI
26AQI
20AQI
2025 Days Vs Air Quality
Geraldton, Western Australia, Australia
97%
260
3%
8
Total number of days with different AQI categories in last 270 days in 2025 (95 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 270 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
Geraldton, Western Australia, Australia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
34AQI
35AQI
31AQI
29AQI
26AQI
31AQI
31AQI
30AQI
26AQI
27AQI
20AQI
23AQI
24AQI
26AQI
22AQI
23AQI
23AQI
23AQI
22AQI
23AQI
23AQI
26AQI
26AQI
47AQI
69AQI
56AQI
40AQI
36AQI
32AQI
28AQI
43AQI
65AQI
65AQI
44AQI
36AQI
35AQI
31AQI
31AQI
25AQI
24AQI
24AQI
26AQI
28AQI
26AQI
38AQI
25AQI
29AQI
27AQI
29AQI
25AQI
23AQI
22AQI
19AQI
28AQI
20AQI
25AQI
25AQI
24AQI
23AQI
20AQI
20AQI
18AQI
21AQI
18AQI
18AQI
18AQI
20AQI
23AQI
24AQI
20AQI
22AQI
18AQI
17AQI
17AQI
19AQI
19AQI
22AQI
21AQI
21AQI
65AQI
68AQI
54AQI
36AQI
37AQI
33AQI
43AQI
24AQI
33AQI
45AQI
37AQI
31AQI
26AQI
25AQI
26AQI
19AQI
23AQI
19AQI
21AQI
17AQI
20AQI
20AQI
24AQI
28AQI
27AQI
24AQI
26AQI
22AQI
22AQI
19AQI
17AQI
18AQI
18AQI
16AQI
16AQI
16AQI
15AQI
17AQI
18AQI
18AQI
21AQI
28AQI
29AQI
28AQI
30AQI
35AQI
36AQI
43AQI
38AQI
37AQI
35AQI
34AQI
32AQI
34AQI
40AQI
38AQI
40AQI
34AQI
36AQI
30AQI
36AQI
37AQI
32AQI
31AQI
31AQI
33AQI
38AQI
34AQI
34AQI
34AQI
36AQI
33AQI
36AQI
33AQI
31AQI
34AQI
35AQI
34AQI
35AQI
36AQI
35AQI
33AQI
34AQI
32AQI
37AQI
34AQI
32AQI
29AQI
28AQI
27AQI
29AQI
27AQI
18AQI
23AQI
27AQI
27AQI
28AQI
28AQI
30AQI
28AQI
26AQI
26AQI
30AQI
28AQI
26AQI
29AQI
29AQI
27AQI
25AQI
25AQI
24AQI
26AQI
31AQI
30AQI
30AQI
27AQI
26AQI
26AQI
26AQI
32AQI
35AQI
34AQI
33AQI
33AQI
33AQI
34AQI
39AQI
41AQI
51AQI
41AQI
39AQI
38AQI
37AQI
34AQI
31AQI
31AQI
28AQI
29AQI
27AQI
30AQI
33AQI
32AQI
27AQI
23AQI
22AQI
23AQI
23AQI
23AQI
21AQI
21AQI
22AQI
19AQI
18AQI
21AQI
21AQI
23AQI
21AQI
20AQI
23AQI
21AQI
22AQI
25AQI
25AQI
26AQI
25AQI
26AQI
34AQI
20AQI
20AQI
22AQI
22AQI
22AQI
21AQI
19AQI
19AQI
19AQI
20AQI
20AQI
21AQI
21AQI
22AQI
23AQI
22AQI
26AQI
25AQI
29AQI
33AQI
28AQI
30AQI
31AQI
28AQI
22AQI
34AQI
31AQI
31AQI
25AQI
23AQI
No. of days
202528AQI
Highest AQI recorded in
May34AQI
Lowest AQI recorded in
April22AQI
202411AQI
Highest AQI recorded in
December28AQI
Lowest AQI recorded in
June5AQI
20237AQI
Highest AQI recorded in
February12AQI
Lowest AQI recorded in
June4AQI
20227AQI
Highest AQI recorded in
January12AQI
Lowest AQI recorded in
July5AQI
202126AQI
Highest AQI recorded in
January46AQI
Lowest AQI recorded in
November8AQI
202030AQI
Highest AQI recorded in
May53AQI
Lowest AQI recorded in
June21AQI
Most & Least Polluted Years Over the Last 6 Years
Geraldton's annual 2025 AQI (28) shows an average percentage change of 147.4% (worsened AQI) compared to previous years: 2020 (30), 2021 (26), 2022 (7), 2023 (7), 2024 (11).