Merimbula, New South Wales, 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
Merimbula, New South Wales, Australia
AQI Trends: Highest and Lowest
Same Day Analysis (22nd September ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 28 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 22nd Sep - 23rd Sep 2025
Merimbula, New South Wales, Australia
6 AM22nd Sep 2025
5 PM
5 AM23rd Sep 2025
39AQI
21AQI
36AQI
21AQI
In the last 24 hours,
Merimbula's AQI reached its highest point of 39 at 2 PM during the Day, while the lowest point, 21, was recorded at 2 AM during the Night between 22nd Sep and 23rd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Merimbula, New South Wales, Australia
12°C9/15°C
14°C12/17°C
15°C12/19°C
15°C13/19°C
13°C10/17°C
13°C9/18°C
9°C7/11°C
13°C9/18°C
11°C8/16°C
12°C8/18°C
13°C8/20°C
13°C9/19°C
10°C6/15°C
12°C7/18°C
16°C11/21°C
17°C12/24°C
14°C10/18°C
11°C9/14°C
12°C9/15°C
12°C7/18°C
12°C8/18°C
13°C9/18°C
15°C10/21°C
18°C13/23°C
14°C9/20°C
11°C6/16°C
15°C8/20°C
13°C8/17°C
13°C8/19°C
12°C8/16°C
--°C/°C
21AQI
18AQI
22AQI
19AQI
2025 Days Vs Air Quality
Merimbula, New South Wales, Australia
100%
265
Total number of days with different AQI categories in last 266 days in 2025 (99 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 266 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
Merimbula, New South Wales, Australia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI
22AQI
23AQI
22AQI
22AQI
22AQI
20AQI
20AQI
19AQI
19AQI
19AQI
20AQI
20AQI
20AQI
24AQI
19AQI
21AQI
19AQI
20AQI
19AQI
20AQI
20AQI
21AQI
20AQI
20AQI
20AQI
23AQI
23AQI
21AQI
21AQI
20AQI
20AQI
20AQI
20AQI
21AQI
26AQI
23AQI
30AQI
24AQI
23AQI
21AQI
21AQI
20AQI
24AQI
22AQI
20AQI
19AQI
21AQI
19AQI
19AQI
19AQI
21AQI
20AQI
22AQI
20AQI
19AQI
20AQI
21AQI
20AQI
21AQI
20AQI
20AQI
19AQI
19AQI
19AQI
19AQI
19AQI
19AQI
18AQI
19AQI
18AQI
20AQI
22AQI
19AQI
20AQI
13AQI
16AQI
16AQI
22AQI
16AQI
16AQI
16AQI
15AQI
20AQI
21AQI
19AQI
17AQI
17AQI
16AQI
16AQI
16AQI
21AQI
19AQI
20AQI
20AQI
14AQI
16AQI
13AQI
14AQI
20AQI
26AQI
21AQI
31AQI
23AQI
21AQI
16AQI
21AQI
23AQI
42AQI
24AQI
24AQI
18AQI
17AQI
17AQI
18AQI
19AQI
16AQI
17AQI
15AQI
13AQI
16AQI
20AQI
17AQI
18AQI
18AQI
20AQI
19AQI
18AQI
17AQI
17AQI
17AQI
18AQI
16AQI
18AQI
20AQI
22AQI
26AQI
19AQI
19AQI
19AQI
16AQI
16AQI
17AQI
17AQI
17AQI
20AQI
34AQI
16AQI
20AQI
21AQI
23AQI
23AQI
27AQI
18AQI
17AQI
15AQI
16AQI
17AQI
22AQI
15AQI
13AQI
17AQI
20AQI
20AQI
22AQI
23AQI
28AQI
25AQI
24AQI
25AQI
27AQI
28AQI
25AQI
22AQI
31AQI
28AQI
28AQI
26AQI
28AQI
26AQI
25AQI
24AQI
22AQI
21AQI
24AQI
22AQI
23AQI
22AQI
22AQI
22AQI
21AQI
18AQI
20AQI
22AQI
23AQI
24AQI
22AQI
21AQI
21AQI
21AQI
23AQI
23AQI
22AQI
22AQI
20AQI
21AQI
19AQI
20AQI
18AQI
20AQI
20AQI
20AQI
19AQI
24AQI
28AQI
23AQI
25AQI
24AQI
28AQI
23AQI
23AQI
21AQI
20AQI
20AQI
22AQI
18AQI
18AQI
17AQI
18AQI
22AQI
17AQI
17AQI
16AQI
18AQI
18AQI
19AQI
17AQI
20AQI
19AQI
18AQI
16AQI
19AQI
18AQI
21AQI
20AQI
18AQI
20AQI
23AQI
19AQI
21AQI
20AQI
20AQI
20AQI
18AQI
18AQI
19AQI
18AQI
19AQI
18AQI
19AQI
17AQI
20AQI
27AQI
29AQI
28AQI
21AQI
21AQI
18AQI
20AQI
19AQI
23AQI
21AQI
20AQI
21AQI
No. of days
202520AQI
Highest AQI recorded in
June23AQI
Lowest AQI recorded in
March18AQI
202416AQI
Highest AQI recorded in
March28AQI
Lowest AQI recorded in
September8AQI
202313AQI
Highest AQI recorded in
April20AQI
Lowest AQI recorded in
August8AQI
202214AQI
Highest AQI recorded in
February21AQI
Lowest AQI recorded in
May9AQI
Most & Least Polluted Years Over the Last 4 Years
Merimbula's annual 2025 AQI (20) shows an average percentage change of 41.5% (worsened AQI) compared to previous years: 2022 (14), 2023 (13), 2024 (16).