Reykjavik, Reykjavikurborg, Iceland 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
Reykjavik, Reykjavikurborg, Iceland
AQI Trends: Highest and Lowest
Same Day Analysis (15th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 25 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 16th Sep - 17th Sep 2025
Reykjavik, Reykjavikurborg, Iceland
6 AM16th Sep 2025
8 PM
5 AM17th Sep 2025
28AQI
15AQI
22AQI
14AQI
In the last 24 hours,
Reykjavik's AQI reached its highest point of 28 at 8 AM during the Day, while the lowest point, 14, was recorded at 2 AM during the Night between 16th Sep and 17th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Reykjavik, Reykjavikurborg, Iceland
12°C11/14°C
12°C11/13°C
12°C10/15°C
12°C11/13°C
11°C9/12°C
13°C12/14°C
13°C12/13°C
13°C12/15°C
14°C14/15°C
13°C11/15°C
12°C11/14°C
12°C11/13°C
13°C11/14°C
12°C10/14°C
12°C9/14°C
12°C10/15°C
11°C10/13°C
11°C9/11°C
9°C7/11°C
9°C7/11°C
7°C5/7°C
9°C6/12°C
9°C7/10°C
9°C8/11°C
12°C11/13°C
11°C8/13°C
8°C4/12°C
10°C8/12°C
11°C10/13°C
10°C8/12°C
--°C/°C
25AQI
21AQI
24AQI
21AQI
2025 Days Vs Air Quality
Reykjavik, Reykjavikurborg, Iceland
97%
107
3%
3
Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 260 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
Reykjavik, Reykjavikurborg, Iceland
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
15AQI
14AQI
12AQI
12AQI
13AQI
15AQI
16AQI
17AQI
15AQI
16AQI
15AQI
16AQI
20AQI
26AQI
24AQI
20AQI
22AQI
23AQI
22AQI
23AQI
21AQI
17AQI
17AQI
16AQI
15AQI
17AQI
16AQI
15AQI
15AQI
16AQI
16AQI
16AQI
16AQI
15AQI
16AQI
16AQI
16AQI
16AQI
23AQI
21AQI
17AQI
17AQI
18AQI
17AQI
17AQI
18AQI
19AQI
19AQI
19AQI
18AQI
16AQI
40AQI
66AQI
70AQI
56AQI
34AQI
27AQI
19AQI
16AQI
16AQI
16AQI
16AQI
27AQI
37AQI
30AQI
28AQI
26AQI
27AQI
34AQI
39AQI
20AQI
16AQI
16AQI
17AQI
17AQI
21AQI
28AQI
32AQI
35AQI
16AQI
17AQI
18AQI
18AQI
17AQI
15AQI
16AQI
18AQI
16AQI
17AQI
23AQI
27AQI
24AQI
23AQI
22AQI
28AQI
41AQI
36AQI
20AQI
19AQI
23AQI
18AQI
25AQI
26AQI
23AQI
19AQI
26AQI
23AQI
22AQI
23AQI
25AQI
14AQI
18AQI
24AQI
23AQI
25AQI
No. of days
202522AQI
Highest AQI recorded in
September25AQI
Lowest AQI recorded in
May14AQI
Most & Least Polluted Years Over the Last 1 Years
Reykjavik's annual 2025 AQI (22) shows an average percentage change of NaN% (improved AQI) compared to previous years: .