Sydney, Nova Scotia, Canada 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, Nova Scotia, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (25th November ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 24 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 26th Nov - 27th Nov 2025
Sydney, Nova Scotia, Canada
7 AM26th Nov 2025
4 PM
6 AM27th Nov 2025
AQI
AQI
47AQI
22AQI
In the last 24 hours,
Sydney's AQI reached its highest point of 47 at 8 PM during the Night, while the lowest point, 22, was recorded at 6 PM during the Night between 26th Nov and 27th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Sydney, Nova Scotia, Canada
9°C7/10°C
8°C6/10°C
9°C7/10°C
14°C11/15°C
11°C9/12°C
8°C5/9°C
6°C5/9°C
7°C4/8°C
7°C6/10°C
5°C3/6°C
4°C2/5°C
7°C3/13°C
7°C3/8°C
5°C2/7°C
13°C9/16°C
4°C2/7°C
6°C4/8°C
5°C3/7°C
3°C2/4°C
5°C2/7°C
7°C4/8°C
4°C3/6°C
5°C2/9°C
3°C1/4°C
4°C1/6°C
6°C4/7°C
3°C1/7°C
2°C1/5°C
4°C1/7°C
--°C/°C
--°C/°C
30AQI
24AQI
30AQI
25AQI
2025 Days Vs Air Quality
Sydney, Nova Scotia, Canada
99%
242
0.8%
2
Total number of days with different AQI categories in last 330 days in 2025 (35 days remaining)
Under WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 330 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, Nova Scotia, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
16AQI
18AQI
18AQI
19AQI
18AQI
16AQI
20AQI
21AQI
18AQI
18AQI
15AQI
15AQI
17AQI
17AQI
17AQI
16AQI
23AQI
20AQI
19AQI
14AQI
15AQI
17AQI
15AQI
17AQI
30AQI
22AQI
17AQI
14AQI
15AQI
19AQI
18AQI
13AQI
16AQI
29AQI
27AQI
18AQI
21AQI
19AQI
22AQI
15AQI
20AQI
21AQI
15AQI
19AQI
14AQI
13AQI
17AQI
18AQI
21AQI
30AQI
27AQI
31AQI
20AQI
14AQI
16AQI
17AQI
16AQI
16AQI
13AQI
17AQI
19AQI
20AQI
25AQI
30AQI
17AQI
17AQI
23AQI
22AQI
20AQI
19AQI
19AQI
21AQI
33AQI
29AQI
36AQI
29AQI
25AQI
46AQI
37AQI
20AQI
20AQI
22AQI
24AQI
18AQI
17AQI
17AQI
16AQI
14AQI
24AQI
27AQI
41AQI
21AQI
16AQI
18AQI
18AQI
17AQI
21AQI
19AQI
24AQI
21AQI
27AQI
21AQI
36AQI
29AQI
21AQI
26AQI
29AQI
21AQI
25AQI
23AQI
19AQI
38AQI
38AQI
19AQI
21AQI
21AQI
20AQI
20AQI
18AQI
24AQI
26AQI
29AQI
25AQI
47AQI
48AQI
47AQI
51AQI
26AQI
18AQI
34AQI
51AQI
45AQI
21AQI
24AQI
27AQI
33AQI
32AQI
39AQI
48AQI
46AQI
49AQI
26AQI
17AQI
29AQI
19AQI
16AQI
16AQI
16AQI
20AQI
21AQI
21AQI
24AQI
17AQI
19AQI
19AQI
20AQI
17AQI
18AQI
20AQI
20AQI
23AQI
19AQI
19AQI
20AQI
18AQI
18AQI
18AQI
19AQI
19AQI
17AQI
19AQI
18AQI
18AQI
18AQI
18AQI
19AQI
18AQI
17AQI
15AQI
13AQI
14AQI
14AQI
14AQI
12AQI
14AQI
22AQI
18AQI
13AQI
18AQI
14AQI
20AQI
28AQI
19AQI
13AQI
46AQI
32AQI
25AQI
21AQI
22AQI
23AQI
19AQI
21AQI
20AQI
23AQI
24AQI
23AQI
24AQI
26AQI
18AQI
24AQI
30AQI
25AQI
25AQI
19AQI
38AQI
21AQI
15AQI
32AQI
25AQI
16AQI
13AQI
20AQI
20AQI
17AQI
15AQI
16AQI
21AQI
17AQI
31AQI
16AQI
14AQI
23AQI
13AQI
15AQI
19AQI
22AQI
13AQI
14AQI
29AQI
39AQI
30AQI
18AQI
28AQI
24AQI
18AQI
18AQI
19AQI
24AQI
28AQI
27AQI
17AQI
24AQI
20AQI
No. of days
202522AQI
Highest AQI recorded in
July28AQI
Lowest AQI recorded in
September17AQI
Most & Least Polluted Years Over the Last 1 Years
Sydney's annual 2025 AQI (22) shows an average percentage change of NaN% (improved AQI) compared to previous years: .