Penrith, 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
Penrith, New South Wales, Australia
AQI Trends: Highest and Lowest
Same Day Analysis (29th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 18 of Good air quality, showing improvement over 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Sep - 30th Sep 2025
Penrith, New South Wales, Australia
5 AM29th Sep 2025
5 PM
4 AM30th Sep 2025
17AQI
8AQI
39AQI
17AQI
In the last 24 hours,
Penrith's AQI reached its highest point of 39 at 1 AM during the Night, while the lowest point, 8, was recorded at 1 PM during the Day between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Penrith, New South Wales, Australia
11°C5/20°C
12°C7/19°C
14°C10/20°C
14°C7/22°C
16°C11/23°C
14°C9/20°C
15°C11/21°C
17°C10/27°C
20°C13/28°C
19°C14/27°C
15°C11/16°C
11°C8/16°C
13°C8/20°C
15°C9/21°C
15°C9/24°C
17°C9/26°C
21°C15/27°C
19°C11/25°C
14°C9/22°C
17°C8/27°C
17°C9/21°C
14°C7/22°C
14°C8/22°C
12°C6/19°C
15°C7/26°C
17°C9/25°C
21°C14/27°C
22°C15/30°C
20°C15/28°C
18°C14/24°C
--°C/°C
24AQI
19AQI
22AQI
20AQI
2025 Days Vs Air Quality
Penrith, New South Wales, Australia
100%
272
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 273 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
Penrith, New South Wales, Australia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
29AQI
27AQI
27AQI
31AQI
36AQI
28AQI
27AQI
22AQI
23AQI
22AQI
24AQI
30AQI
31AQI
31AQI
26AQI
27AQI
26AQI
27AQI
28AQI
32AQI
35AQI
29AQI
28AQI
27AQI
27AQI
30AQI
34AQI
33AQI
29AQI
28AQI
26AQI
24AQI
23AQI
32AQI
33AQI
35AQI
31AQI
31AQI
25AQI
24AQI
26AQI
27AQI
26AQI
28AQI
23AQI
21AQI
23AQI
25AQI
25AQI
24AQI
26AQI
24AQI
24AQI
30AQI
24AQI
27AQI
29AQI
30AQI
42AQI
36AQI
36AQI
29AQI
29AQI
25AQI
23AQI
21AQI
21AQI
20AQI
19AQI
20AQI
26AQI
31AQI
39AQI
32AQI
30AQI
26AQI
31AQI
31AQI
33AQI
24AQI
24AQI
22AQI
21AQI
22AQI
20AQI
20AQI
18AQI
19AQI
18AQI
18AQI
21AQI
25AQI
28AQI
27AQI
24AQI
23AQI
20AQI
20AQI
33AQI
45AQI
32AQI
33AQI
34AQI
25AQI
27AQI
25AQI
24AQI
36AQI
27AQI
32AQI
24AQI
23AQI
22AQI
23AQI
24AQI
19AQI
20AQI
21AQI
18AQI
19AQI
18AQI
19AQI
18AQI
18AQI
20AQI
19AQI
22AQI
19AQI
18AQI
16AQI
17AQI
17AQI
21AQI
21AQI
20AQI
22AQI
18AQI
17AQI
17AQI
15AQI
17AQI
15AQI
18AQI
19AQI
21AQI
41AQI
21AQI
27AQI
23AQI
27AQI
26AQI
30AQI
30AQI
23AQI
22AQI
28AQI
22AQI
18AQI
17AQI
17AQI
21AQI
22AQI
21AQI
21AQI
27AQI
28AQI
31AQI
32AQI
38AQI
41AQI
42AQI
48AQI
44AQI
33AQI
31AQI
28AQI
28AQI
28AQI
32AQI
29AQI
24AQI
20AQI
17AQI
18AQI
23AQI
22AQI
21AQI
25AQI
23AQI
22AQI
20AQI
23AQI
25AQI
23AQI
29AQI
26AQI
27AQI
28AQI
28AQI
31AQI
28AQI
28AQI
25AQI
26AQI
27AQI
22AQI
21AQI
19AQI
20AQI
21AQI
19AQI
20AQI
19AQI
19AQI
21AQI
22AQI
22AQI
24AQI
23AQI
19AQI
18AQI
18AQI
20AQI
20AQI
19AQI
19AQI
17AQI
15AQI
16AQI
16AQI
16AQI
15AQI
17AQI
17AQI
19AQI
20AQI
21AQI
19AQI
18AQI
16AQI
17AQI
17AQI
20AQI
19AQI
18AQI
21AQI
25AQI
20AQI
24AQI
21AQI
21AQI
21AQI
18AQI
19AQI
19AQI
20AQI
19AQI
22AQI
19AQI
21AQI
20AQI
17AQI
18AQI
21AQI
17AQI
17AQI
27AQI
29AQI
25AQI
34AQI
18AQI
29AQI
27AQI
26AQI
26AQI
20AQI
29AQI
24AQI
19AQI
21AQI
No. of days
202524AQI
Highest AQI recorded in
June29AQI
Lowest AQI recorded in
August19AQI
202424AQI
Highest AQI recorded in
December32AQI
Lowest AQI recorded in
May21AQI
202323AQI
Highest AQI recorded in
September30AQI
Lowest AQI recorded in
April19AQI
202218AQI
Highest AQI recorded in
June23AQI
Lowest AQI recorded in
April14AQI
202121AQI
Highest AQI recorded in
August27AQI
Lowest AQI recorded in
February15AQI
202027AQI
Highest AQI recorded in
July32AQI
Lowest AQI recorded in
December17AQI
Most & Least Polluted Years Over the Last 6 Years
Penrith's annual 2025 AQI (24) shows an average percentage change of 8.2% (worsened AQI) compared to previous years: 2020 (27), 2021 (21), 2022 (18), 2023 (23), 2024 (24).