Sydney St Marys, 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!
November Air Quality Analysis
Sydney St Marys, Penrith, New South Wales, Australia
AQI Trends: Highest and Lowest
Same Day Analysis (12th November ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 4th highest AQI at 18 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Nov - 13th Nov 2025
Sydney St Marys, Penrith, New South Wales, Australia
6 AM12th Nov 2025
7 PM
5 AM13th Nov 2025
AQI
AQI
50AQI
11AQI
In the last 24 hours,
Sydney St Marys's AQI reached its highest point of 50 at 12 PM during the Night, while the lowest point, 11, was recorded at 7 PM during the Night between 12th Nov and 13th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Sydney St Marys, Penrith, New South Wales, Australia
18°C8/30°C
19°C10/30°C
22°C12/35°C
25°C17/35°C
19°C15/27°C
20°C11/31°C
26°C14/39°C
21°C15/29°C
26°C15/40°C
19°C14/24°C
18°C11/28°C
18°C10/28°C
22°C13/30°C
18°C13/28°C
12°C10/17°C
14°C12/15°C
16°C12/21°C
19°C14/26°C
20°C15/30°C
21°C15/30°C
24°C16/38°C
18°C13/22°C
18°C10/29°C
19°C10/30°C
23°C15/34°C
25°C16/35°C
17°C10/24°C
19°C13/27°C
18°C10/29°C
--°C/°C
--°C/°C
39AQI
32AQI
36AQI
33AQI
2025 Days Vs Air Quality
Sydney St Marys, Penrith, New South Wales, Australia
99%
313
0.9%
3
Total number of days with different AQI categories in last 316 days in 2025 (49 days remaining)
Under WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 316 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
Sydney St Marys, Penrith, New South Wales, Australia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
28AQI
27AQI
27AQI
31AQI
38AQI
28AQI
25AQI
21AQI
23AQI
20AQI
24AQI
31AQI
31AQI
31AQI
26AQI
26AQI
25AQI
26AQI
27AQI
32AQI
37AQI
29AQI
28AQI
27AQI
26AQI
30AQI
34AQI
33AQI
28AQI
28AQI
25AQI
23AQI
23AQI
33AQI
35AQI
36AQI
33AQI
30AQI
24AQI
24AQI
28AQI
28AQI
27AQI
30AQI
24AQI
22AQI
21AQI
24AQI
25AQI
25AQI
27AQI
23AQI
24AQI
31AQI
23AQI
26AQI
30AQI
30AQI
44AQI
36AQI
37AQI
28AQI
30AQI
25AQI
22AQI
20AQI
20AQI
20AQI
20AQI
20AQI
26AQI
34AQI
46AQI
36AQI
31AQI
25AQI
35AQI
33AQI
36AQI
23AQI
23AQI
21AQI
20AQI
22AQI
20AQI
20AQI
18AQI
19AQI
17AQI
17AQI
20AQI
26AQI
29AQI
27AQI
23AQI
24AQI
23AQI
21AQI
34AQI
50AQI
32AQI
33AQI
35AQI
26AQI
27AQI
25AQI
24AQI
39AQI
25AQI
33AQI
20AQI
22AQI
21AQI
22AQI
24AQI
18AQI
19AQI
21AQI
16AQI
18AQI
18AQI
17AQI
17AQI
18AQI
20AQI
19AQI
22AQI
20AQI
18AQI
16AQI
17AQI
17AQI
20AQI
21AQI
19AQI
21AQI
17AQI
17AQI
17AQI
15AQI
15AQI
14AQI
18AQI
19AQI
20AQI
40AQI
21AQI
26AQI
23AQI
27AQI
26AQI
30AQI
29AQI
23AQI
22AQI
28AQI
23AQI
18AQI
17AQI
17AQI
21AQI
22AQI
22AQI
21AQI
27AQI
27AQI
32AQI
32AQI
38AQI
42AQI
43AQI
51AQI
44AQI
34AQI
31AQI
28AQI
27AQI
28AQI
34AQI
30AQI
25AQI
20AQI
16AQI
18AQI
22AQI
23AQI
21AQI
24AQI
23AQI
22AQI
21AQI
24AQI
26AQI
23AQI
29AQI
26AQI
29AQI
29AQI
28AQI
32AQI
28AQI
28AQI
25AQI
26AQI
28AQI
22AQI
20AQI
19AQI
20AQI
21AQI
19AQI
20AQI
19AQI
18AQI
21AQI
22AQI
22AQI
25AQI
23AQI
19AQI
18AQI
18AQI
20AQI
20AQI
20AQI
20AQI
18AQI
15AQI
16AQI
16AQI
15AQI
15AQI
17AQI
17AQI
19AQI
20AQI
21AQI
20AQI
18AQI
16AQI
18AQI
17AQI
20AQI
20AQI
18AQI
21AQI
25AQI
19AQI
24AQI
22AQI
20AQI
22AQI
19AQI
20AQI
20AQI
20AQI
20AQI
22AQI
19AQI
21AQI
21AQI
18AQI
18AQI
21AQI
18AQI
17AQI
26AQI
28AQI
22AQI
36AQI
19AQI
33AQI
29AQI
30AQI
37AQI
43AQI
41AQI
50AQI
40AQI
44AQI
41AQI
37AQI
41AQI
28AQI
29AQI
42AQI
47AQI
50AQI
54AQI
49AQI
45AQI
49AQI
55AQI
46AQI
38AQI
32AQI
29AQI
35AQI
26AQI
29AQI
23AQI
22AQI
29AQI
24AQI
25AQI
33AQI
24AQI
27AQI
30AQI
32AQI
43AQI
33AQI
28AQI
28AQI
18AQI
28AQI
27AQI
27AQI
26AQI
20AQI
29AQI
24AQI
19AQI
22AQI
38AQI
29AQI
No. of days
202526AQI
Highest AQI recorded in
October38AQI
Lowest AQI recorded in
August19AQI
202425AQI
Highest AQI recorded in
December32AQI
Lowest AQI recorded in
July20AQI
202326AQI
Highest AQI recorded in
September35AQI
Lowest AQI recorded in
April20AQI
202220AQI
Highest AQI recorded in
December23AQI
Lowest AQI recorded in
March17AQI
Most & Least Polluted Years Over the Last 4 Years
Sydney St Marys's annual 2025 AQI (26) shows an average percentage change of 11.9% (worsened AQI) compared to previous years: 2022 (20), 2023 (26), 2024 (25).