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 (29th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 33 of Good air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 29th Sep - 30th Sep 2026
Vantaa, Uusimaa, Finland
6 AM29th Sep 2026
7 PM
5 AM30th Sep 2026
53AQI
13AQI
50AQI
23AQI
In the last 24 hours,
Vantaa's AQI reached its highest point of 53 at 5 PM during the Day, while the lowest point, 13, was recorded at 7 AM during the Day between 29th Sep and 30th Sep 2026.
Day & Night AQI Trend : Sep 2026
Vantaa, Uusimaa, Finland
16°C14/19°C
15°C11/20°C
15°C11/18°C
14°C11/17°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°C11/14°C
14°C12/16°C
14°C12/16°C
13°C10/17°C
11°C8/14°C
10°C8/12°C
11°C8/15°C
12°C11/13°C
13°C12/14°C
12°C9/15°C
12°C10/14°C
13°C12/15°C
12°C9/15°C
27AQI
22AQI
29AQI
26AQI
2026 Days Vs Air Quality
Vantaa, Uusimaa, Finland
96%
258
4%
11
Total number of days with different AQI categories in last 273 days in 2026 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2026, 96% 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
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)
24AQI (US)
30AQI (US)
33AQI (US)
33AQI (US)
32AQI (US)
36AQI (US)
24AQI (US)
28AQI (US)
23AQI (US)
28AQI (US)
27AQI (US)
26AQI (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).