Vantaa, Uusimaa, Finland 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
Vantaa, Uusimaa, Finland
AQI Trends: Highest and Lowest
Same Day Analysis (26th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 20 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Day & Night AQI Trend: 26th Sep - 27th Sep 2026
Vantaa, Uusimaa, Finland
6 AM26th Sep 2026
7 PM
5 AM27th Sep 2026
26AQI
8AQI
41AQI
21AQI
In the last 24 hours,
Vantaa's AQI reached its highest point of 41 at 4 AM during the Night, while the lowest point, 8, was recorded at 1 PM during the Day between 26th Sep and 27th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Vantaa, Uusimaa, Finland
17°C15/20°C
16°C15/19°C
16°C14/18°C
16°C14/19°C
15°C11/20°C
15°C11/18°C
14°C11/18°C
13°C10/18°C
12°C9/16°C
11°C6/16°C
15°C14/17°C
15°C14/17°C
15°C12/17°C
13°C10/17°C
12°C8/15°C
14°C12/16°C
11°C7/16°C
11°C8/15°C
14°C12/15°C
14°C11/16°C
13°C11/15°C
14°C12/16°C
14°C12/16°C
13°C10/17°C
11°C8/15°C
10°C8/11°C
11°C8/15°C
12°C11/13°C
13°C12/14°C
12°C9/15°C
28AQI
22AQI
28AQI
25AQI
2026 Days Vs Air Quality
Vantaa, Uusimaa, Finland
96%
255
4%
11
Total number of days with different AQI categories in last 270 days in 2026 (95 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2026, 96% of 270 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
Vantaa, Uusimaa, Finland
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
50AQI (US)
15AQI (US)
24AQI (US)
24AQI (US)
32AQI (US)
43AQI (US)
30AQI (US)
16AQI (US)
13AQI (US)
9AQI (US)
10AQI (US)
10AQI (US)
11AQI (US)
27AQI (US)
39AQI (US)
59AQI (US)
58AQI (US)
59AQI (US)
49AQI (US)
37AQI (US)
25AQI (US)
12AQI (US)
42AQI (US)
47AQI (US)
48AQI (US)
43AQI (US)
33AQI (US)
35AQI (US)
34AQI (US)
47AQI (US)
30AQI (US)
28AQI (US)
43AQI (US)
42AQI (US)
23AQI (US)
17AQI (US)
30AQI (US)
38AQI (US)
19AQI (US)
12AQI (US)
22AQI (US)
46AQI (US)
46AQI (US)
47AQI (US)
41AQI (US)
46AQI (US)
15AQI (US)
30AQI (US)
41AQI (US)
62AQI (US)
27AQI (US)
28AQI (US)
24AQI (US)
20AQI (US)
30AQI (US)
29AQI (US)
32AQI (US)
31AQI (US)
29AQI (US)
31AQI (US)
36AQI (US)
37AQI (US)
32AQI (US)
32AQI (US)
30AQI (US)
24AQI (US)
23AQI (US)
51AQI (US)
58AQI (US)
88AQI (US)
78AQI (US)
23AQI (US)
52AQI (US)
45AQI (US)
21AQI (US)
27AQI (US)
14AQI (US)
32AQI (US)
23AQI (US)
27AQI (US)
16AQI (US)
45AQI (US)
37AQI (US)
68AQI (US)
31AQI (US)
26AQI (US)
24AQI (US)
27AQI (US)
32AQI (US)
35AQI (US)
35AQI (US)
27AQI (US)
27AQI (US)
29AQI (US)
30AQI (US)
25AQI (US)
20AQI (US)
27AQI (US)
27AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
39AQI (US)
28AQI (US)
38AQI (US)
22AQI (US)
18AQI (US)
18AQI (US)
21AQI (US)
23AQI (US)
12AQI (US)
18AQI (US)
20AQI (US)
9AQI (US)
17AQI (US)
20AQI (US)
15AQI (US)
20AQI (US)
20AQI (US)
24AQI (US)
19AQI (US)
21AQI (US)
13AQI (US)
17AQI (US)
19AQI (US)
19AQI (US)
15AQI (US)
20AQI (US)
20AQI (US)
34AQI (US)
18AQI (US)
26AQI (US)
39AQI (US)
47AQI (US)
35AQI (US)
34AQI (US)
39AQI (US)
52AQI (US)
49AQI (US)
36AQI (US)
50AQI (US)
44AQI (US)
32AQI (US)
9AQI (US)
23AQI (US)
15AQI (US)
15AQI (US)
21AQI (US)
27AQI (US)
25AQI (US)
26AQI (US)
25AQI (US)
37AQI (US)
40AQI (US)
23AQI (US)
19AQI (US)
24AQI (US)
23AQI (US)
23AQI (US)
21AQI (US)
18AQI (US)
13AQI (US)
21AQI (US)
22AQI (US)
19AQI (US)
20AQI (US)
20AQI (US)
22AQI (US)
20AQI (US)
18AQI (US)
18AQI (US)
18AQI (US)
29AQI (US)
25AQI (US)
22AQI (US)
22AQI (US)
24AQI (US)
23AQI (US)
19AQI (US)
20AQI (US)
24AQI (US)
22AQI (US)
18AQI (US)
16AQI (US)
9AQI (US)
20AQI (US)
16AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
25AQI (US)
33AQI (US)
30AQI (US)
37AQI (US)
34AQI (US)
39AQI (US)
40AQI (US)
35AQI (US)
37AQI (US)
36AQI (US)
31AQI (US)
31AQI (US)
35AQI (US)
35AQI (US)
35AQI (US)
29AQI (US)
39AQI (US)
41AQI (US)
38AQI (US)
36AQI (US)
32AQI (US)
33AQI (US)
23AQI (US)
27AQI (US)
19AQI (US)
22AQI (US)
20AQI (US)
27AQI (US)
21AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
16AQI (US)
14AQI (US)
14AQI (US)
23AQI (US)
22AQI (US)
24AQI (US)
23AQI (US)
40AQI (US)
33AQI (US)
33AQI (US)
27AQI (US)
32AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
28AQI (US)
27AQI (US)
19AQI (US)
25AQI (US)
25AQI (US)
26AQI (US)
22AQI (US)
19AQI (US)
23AQI (US)
26AQI (US)
24AQI (US)
27AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
23AQI (US)
35AQI (US)
34AQI (US)
26AQI (US)
24AQI (US)
26AQI (US)
23AQI (US)
20AQI (US)
33AQI (US)
32AQI (US)
36AQI (US)
24AQI (US)
28AQI (US)
23AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
No. of days
202628AQI (US)
Highest AQI (US) recorded in
March36AQI (US)
Lowest AQI (US) recorded in
June23AQI (US)
202525AQI (US)
Highest AQI (US) recorded in
February34AQI (US)
Lowest AQI (US) recorded in
May17AQI (US)
202426AQI (US)
Highest AQI (US) recorded in
March33AQI (US)
Lowest AQI (US) recorded in
November18AQI (US)
202325AQI (US)
Highest AQI (US) recorded in
April35AQI (US)
Lowest AQI (US) recorded in
October17AQI (US)
202225AQI (US)
Highest AQI (US) recorded in
March35AQI (US)
Lowest AQI (US) recorded in
August16AQI (US)
202127AQI (US)
Highest AQI (US) recorded in
June35AQI (US)
Lowest AQI (US) recorded in
September21AQI (US)
202027AQI (US)
Highest AQI (US) recorded in
March35AQI (US)
Lowest AQI (US) recorded in
November22AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Vantaa's annual 2026 AQI (US) (28) shows an average percentage change of 8.5% (worsened AQI (US)) compared to previous years: 2020 (27), 2021 (27), 2022 (25), 2023 (25), 2024 (26), 2025 (25).