Smog in Helsinki — Live Data: AQI, Fine Dust, Wind, UV and Health Advice
- particulate matter (PM2.5) dust - 5 (Good)
- particulate matter (PM10) suspended dust - 7 (Good)
- ozone (O3) - 18 (Good)
- nitrogen dioxide (NO2) - 19 (Good)
- sulfur dioxide (SO2) - 1 (Good)
- carbon monoxide (CO) - 190 (Good)
What is the air quality in Helsinki today? Is the air polluted in Helsinki?. Is there smog?
What is the current level of PM2.5 in Helsinki? (particulate matter (PM2.5) dust)
Today's PM2.5 level is:
5 (Good)
For comparison, the highest level of PM2.5 in Helsinki in the last 7 days was: 7 (Tuesday, August 25, 2026) and the lowest: 3 (Sunday, August 23, 2026).
The highest PM2.5 values were recorded: 11 (February 2018).
The lowest level of particulate matter PM2.5 pollution occurs in month: December (5.2).
What is the level of PM10 today in Helsinki? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Helsinki is:
7 (Good)
The highest PM10 values usually occur in month: 43 (April 2019).
The lowest value of particulate matter PM10 pollution in Helsinki is usually recorded in: December (8.5).
How is the O3 level today in Helsinki? (ozone (O3))
18 (Good)
How high is the level of NO2? (nitrogen dioxide (NO2))
19 (Good)
What is the level of SO2 pollution? (sulfur dioxide (SO2))
1 (Good)
How high is the CO level? (carbon monoxide (CO))
190 (Good)
Current data Thursday, August 27, 2026 at 4:00 AM
PM2,5 5 (Good)
PM10 7 (Good)
O3 18 (Good)
NO2 19 (Good)
SO2 1 (Good)
CO 190 (Good)
Data on air pollution from recent days in Helsinki
index
2026-08-27
2026-08-26
2026-08-25
2026-08-24
2026-08-23
2026-08-22
2026-08-21
2026-08-20
pm25
6
Good
5
Good
7
Good
6
Good
3
Good
4
Good
3
Good
3
Good
pm10
7
Good
7
Good
8
Good
7
Good
3
Good
6
Good
4
Good
4
Good
o3
39
Good
49
Good
56
Good
56
Good
64
Good
81
Moderate
68
Good
59
Good
no2
18
Good
12
Good
7
Good
5
Good
3
Good
6
Good
6
Good
7
Good
so2
2
Good
1
Good
1
Good
0
Good
0
Good
0
Good
0
Good
0
Good
co
201
Good
230
Good
317
Good
328
Good
156
Good
164
Good
145
Good
135
Good
data source »
Air pollution in Helsinki from September 2017 to May 2020
index
2020-05
2020-04
2020-03
2020-02
2020-01
2019-12
2019-11
2019-10
2019-09
2019-08
2019-07
2019-06
2019-05
2019-04
2019-03
2019-02
2019-01
2018-12
2018-11
2018-10
2018-09
2018-08
2018-07
2018-06
2018-05
2018-04
2018-03
2018-02
2018-01
2017-12
2017-11
2017-10
2017-09
pm25
5.4 (Good)
5.8 (Good)
6.6 (Good)
6.1 (Good)
5.6 (Good)
5.4 (Good)
7.8 (Good)
5.4 (Good)
6 (Good)
7.5 (Good)
7.4 (Good)
8.6 (Good)
8.3 (Good)
11 (Good)
6.6 (Good)
6.8 (Good)
7.5 (Good)
8.1 (Good)
7.5 (Good)
8.2 (Good)
8 (Good)
7.1 (Good)
11 (Good)
7.3 (Good)
9.3 (Good)
8.8 (Good)
8.1 (Good)
11 (Good)
8 (Good)
5.2 (Good)
6 (Good)
5.8 (Good)
8.7 (Good)
no2
12 (Good)
12 (Good)
19 (Good)
19 (Good)
20 (Good)
21 (Good)
22 (Good)
22 (Good)
22 (Good)
23 (Good)
18 (Good)
22 (Good)
26 (Good)
34 (Good)
24 (Good)
26 (Good)
35 (Good)
24 (Good)
28 (Good)
27 (Good)
26 (Good)
27 (Good)
23 (Good)
18 (Good)
31 (Good)
30 (Good)
33 (Good)
35 (Good)
23 (Good)
20 (Good)
24 (Good)
23 (Good)
22 (Good)
pm10
13 (Good)
16 (Good)
21 (Moderate)
20 (Moderate)
14 (Good)
13 (Good)
22 (Moderate)
11 (Good)
13 (Good)
15 (Good)
14 (Good)
19 (Good)
22 (Moderate)
43 (Moderate)
21 (Moderate)
14 (Good)
9.4 (Good)
12 (Good)
23 (Moderate)
17 (Good)
16 (Good)
17 (Good)
26 (Moderate)
17 (Good)
32 (Moderate)
35 (Moderate)
30 (Moderate)
27 (Moderate)
15 (Good)
8.5 (Good)
13 (Good)
13 (Good)
22 (Moderate)
data source »
Helsinki
Thursday, August 27, 2026 at 4:00 AM
PM2,5 4.9 (Good)
particulate matter (PM2.5) dust
PM10 6.7 (Good)
particulate matter (PM10) suspended dust
O3 18 (Good)
ozone (O3)
NO2 19 (Good)
nitrogen dioxide (NO2)
SO2 0.7 (Good)
sulfur dioxide (SO2)
CO 190 (Good)
carbon monoxide (CO)
Helsinki
index
2026-08-20
2026-08-21
2026-08-22
2026-08-23
2026-08-24
2026-08-25
2026-08-26
2026-08-27
pm25
3.1
3
4.4
2.8
6.1
7.1
5.3
5.6
pm10
4
3.9
6
3.3
6.9
8.4
6.9
7.3
o3
59
68
81
64
56
56
49
39
no2
6.9
5.9
6.3
2.6
4.6
7.4
12
18
so2
0.44
0.38
0.48
0.31
0.49
0.61
0.81
1.6
co
135
145
164
156
328
317
230
201
FI00564
2017-09 2020-05
index
2020-05
2020-04
2020-03
2020-02
2020-01
2019-12
2019-11
2019-10
2019-09
2019-08
2019-07
2019-06
2019-05
2019-04
2019-03
2019-02
2019-01
2018-12
2018-11
2018-10
2018-09
2018-08
2018-07
2018-06
2018-05
2018-04
2018-03
2018-02
2018-01
2017-12
2017-11
2017-10
2017-09
pm25
5.4
5.8
6.6
6.1
5.6
5.4
7.8
5.4
6
7.5
7.4
8.6
8.3
11
6.6
6.8
7.5
8.1
7.5
8.2
8
7.1
11
7.3
9.3
8.8
8.1
11
8
5.2
6
5.8
8.7
pm10
11
16
15
17
15
14
22
13
16
19
21
26
26
39
20
14
10
15
21
20
21
23
35
23
40
29
25
26
15
9.7
13
15
28
no2
13
12
17
18
18
20
22
23
23
24
24
24
27
35
22
24
32
24
25
26
26
27
29
24
38
32
34
37
24
20
23
26
25
FI00841
index
2020-05
2020-04
2020-03
2020-02
2020-01
2019-12
2019-11
2019-10
2019-09
2019-08
2019-07
2019-06
2019-05
2019-04
2019-03
2019-02
2019-01
2018-12
2018-11
2018-10
2018-09
2018-08
2018-07
2018-06
2018-05
2018-04
2018-03
2018-02
2018-01
2017-12
2017-11
2017-10
2017-09
pm10
13
13
23
19
9.6
7.8
22
9.2
12
13
12
14
18
55
23
9.9
9.3
11
22
15
15
14
17
12
25
40
36
28
14
7.3
13
11
17
no2
6.4
6.7
14
14
16
18
18
17
16
16
12
15
20
30
20
22
33
21
24
21
20
20
16
12
23
28
32
33
23
20
25
19
20
FI00902
index
2020-05
2020-04
2020-03
2020-02
2020-01
2019-12
2019-11
2019-10
2019-09
2019-08
2019-07
2019-06
2019-05
2019-04
2019-03
2019-02
2019-01
2018-12
2018-11
2018-10
2018-09
2018-08
no2
16
17
25
25
26
27
25
26
28
27
19
26
30
36
30
34
41
26
34
33
31
35
pm10
15
19
24
25
17
16
23
12
11
13
9.7
16
21
33
20
16
8.6
12
25
16
13
15
* Pollution data source:
https://openaq.org
(EEA Finland)
The data is licensed under CC-By 4.0
🌦️ Weather · 16-day Forecast — Helsinki
PM2,5 5 (Good)
PM10 7 (Good)
O3 18 (Good)
NO2 19 (Good)
SO2 1 (Good)
CO 190 (Good)
Data on air pollution from recent days in Helsinki
| index | 2026-08-27 | 2026-08-26 | 2026-08-25 | 2026-08-24 | 2026-08-23 | 2026-08-22 | 2026-08-21 | 2026-08-20 |
|---|---|---|---|---|---|---|---|---|
| pm25 | 6 Good |
5 Good |
7 Good |
6 Good |
3 Good |
4 Good |
3 Good |
3 Good |
| pm10 | 7 Good |
7 Good |
8 Good |
7 Good |
3 Good |
6 Good |
4 Good |
4 Good |
| o3 | 39 Good |
49 Good |
56 Good |
56 Good |
64 Good |
81 Moderate |
68 Good |
59 Good |
| no2 | 18 Good |
12 Good |
7 Good |
5 Good |
3 Good |
6 Good |
6 Good |
7 Good |
| so2 | 2 Good |
1 Good |
1 Good |
0 Good |
0 Good |
0 Good |
0 Good |
0 Good |
| co | 201 Good |
230 Good |
317 Good |
328 Good |
156 Good |
164 Good |
145 Good |
135 Good |
| index | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm25 | 5.4 (Good) | 5.8 (Good) | 6.6 (Good) | 6.1 (Good) | 5.6 (Good) | 5.4 (Good) | 7.8 (Good) | 5.4 (Good) | 6 (Good) | 7.5 (Good) | 7.4 (Good) | 8.6 (Good) | 8.3 (Good) | 11 (Good) | 6.6 (Good) | 6.8 (Good) | 7.5 (Good) | 8.1 (Good) | 7.5 (Good) | 8.2 (Good) | 8 (Good) | 7.1 (Good) | 11 (Good) | 7.3 (Good) | 9.3 (Good) | 8.8 (Good) | 8.1 (Good) | 11 (Good) | 8 (Good) | 5.2 (Good) | 6 (Good) | 5.8 (Good) | 8.7 (Good) |
| no2 | 12 (Good) | 12 (Good) | 19 (Good) | 19 (Good) | 20 (Good) | 21 (Good) | 22 (Good) | 22 (Good) | 22 (Good) | 23 (Good) | 18 (Good) | 22 (Good) | 26 (Good) | 34 (Good) | 24 (Good) | 26 (Good) | 35 (Good) | 24 (Good) | 28 (Good) | 27 (Good) | 26 (Good) | 27 (Good) | 23 (Good) | 18 (Good) | 31 (Good) | 30 (Good) | 33 (Good) | 35 (Good) | 23 (Good) | 20 (Good) | 24 (Good) | 23 (Good) | 22 (Good) |
| pm10 | 13 (Good) | 16 (Good) | 21 (Moderate) | 20 (Moderate) | 14 (Good) | 13 (Good) | 22 (Moderate) | 11 (Good) | 13 (Good) | 15 (Good) | 14 (Good) | 19 (Good) | 22 (Moderate) | 43 (Moderate) | 21 (Moderate) | 14 (Good) | 9.4 (Good) | 12 (Good) | 23 (Moderate) | 17 (Good) | 16 (Good) | 17 (Good) | 26 (Moderate) | 17 (Good) | 32 (Moderate) | 35 (Moderate) | 30 (Moderate) | 27 (Moderate) | 15 (Good) | 8.5 (Good) | 13 (Good) | 13 (Good) | 22 (Moderate) |
PM2,5 4.9 (Good)
particulate matter (PM2.5) dustPM10 6.7 (Good)
particulate matter (PM10) suspended dustO3 18 (Good)
ozone (O3)NO2 19 (Good)
nitrogen dioxide (NO2)SO2 0.7 (Good)
sulfur dioxide (SO2)CO 190 (Good)
carbon monoxide (CO)Helsinki
| index | 2026-08-20 | 2026-08-21 | 2026-08-22 | 2026-08-23 | 2026-08-24 | 2026-08-25 | 2026-08-26 | 2026-08-27 |
|---|---|---|---|---|---|---|---|---|
| pm25 | 3.1 | 3 | 4.4 | 2.8 | 6.1 | 7.1 | 5.3 | 5.6 |
| pm10 | 4 | 3.9 | 6 | 3.3 | 6.9 | 8.4 | 6.9 | 7.3 |
| o3 | 59 | 68 | 81 | 64 | 56 | 56 | 49 | 39 |
| no2 | 6.9 | 5.9 | 6.3 | 2.6 | 4.6 | 7.4 | 12 | 18 |
| so2 | 0.44 | 0.38 | 0.48 | 0.31 | 0.49 | 0.61 | 0.81 | 1.6 |
| co | 135 | 145 | 164 | 156 | 328 | 317 | 230 | 201 |
FI00564
| index | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm25 | 5.4 | 5.8 | 6.6 | 6.1 | 5.6 | 5.4 | 7.8 | 5.4 | 6 | 7.5 | 7.4 | 8.6 | 8.3 | 11 | 6.6 | 6.8 | 7.5 | 8.1 | 7.5 | 8.2 | 8 | 7.1 | 11 | 7.3 | 9.3 | 8.8 | 8.1 | 11 | 8 | 5.2 | 6 | 5.8 | 8.7 |
| pm10 | 11 | 16 | 15 | 17 | 15 | 14 | 22 | 13 | 16 | 19 | 21 | 26 | 26 | 39 | 20 | 14 | 10 | 15 | 21 | 20 | 21 | 23 | 35 | 23 | 40 | 29 | 25 | 26 | 15 | 9.7 | 13 | 15 | 28 |
| no2 | 13 | 12 | 17 | 18 | 18 | 20 | 22 | 23 | 23 | 24 | 24 | 24 | 27 | 35 | 22 | 24 | 32 | 24 | 25 | 26 | 26 | 27 | 29 | 24 | 38 | 32 | 34 | 37 | 24 | 20 | 23 | 26 | 25 |
FI00841
| index | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm10 | 13 | 13 | 23 | 19 | 9.6 | 7.8 | 22 | 9.2 | 12 | 13 | 12 | 14 | 18 | 55 | 23 | 9.9 | 9.3 | 11 | 22 | 15 | 15 | 14 | 17 | 12 | 25 | 40 | 36 | 28 | 14 | 7.3 | 13 | 11 | 17 |
| no2 | 6.4 | 6.7 | 14 | 14 | 16 | 18 | 18 | 17 | 16 | 16 | 12 | 15 | 20 | 30 | 20 | 22 | 33 | 21 | 24 | 21 | 20 | 20 | 16 | 12 | 23 | 28 | 32 | 33 | 23 | 20 | 25 | 19 | 20 |
FI00902
| index | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| no2 | 16 | 17 | 25 | 25 | 26 | 27 | 25 | 26 | 28 | 27 | 19 | 26 | 30 | 36 | 30 | 34 | 41 | 26 | 34 | 33 | 31 | 35 |
| pm10 | 15 | 19 | 24 | 25 | 17 | 16 | 23 | 12 | 11 | 13 | 9.7 | 16 | 21 | 33 | 20 | 16 | 8.6 | 12 | 25 | 16 | 13 | 15 |
16-day weather forecast for Helsinki: today around 21°C (partly cloudy), lows near 11°C. Daily temperature and conditions, updated every day. A moderate breeze (about 15 km/h) is partially dispersing pollutants today.
☀️ UV Index · 16-day Forecast — Helsinki
The UV index in Helsinki today is 4.5 (moderate) — unprotected fair skin can burn in about 45 minutes.
📍 Air quality in nearby cities
Live PM2.5 around Helsinki — compare nearby locations.