5-day weather forecast Helsinki Sep 6, 2026

16° · Sunny

Weather forecast Helsinki tomorrow Sep 6, 2026: sunny, temperature from 9 °C to 16 °C.

Precipitation probability 25%. Wind up to 6.5 m/s (gusts 11.53 m/s). Air humidity 41–94%, atmospheric pressure 749–761 mm Hg, UV index up to 2.6.

5 days at a glance — tap a day to open it
Sunrise 06:27
Sunset 20:10
Waning Crescent20% illuminated
Moonrise 23:09 · Moonset 19:12
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Table

Forecast from 9 °C to 16 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)111110910101010111112131414151516161514121199
Precipitation (mm/hr)000000000.010.010.030.030.020.010000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)4861738272891576674808074775555555503
Rain chance (%)191216191514251415161612981111223567

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)3.814.194.54.694.814.694.814.894.614.895.3966.196.56.316.195.815.114.394.393.893.393.113.19
Wind gust (m/s)8.729.199.8910.2210.3310.4210.229.119.319.319.149.429.510.0310.149.9210.4211.5310.429.399.539.398.429.81
Wind direction (°)NW 326°NNW 335°NNW 335°NNW 335°NNW 337°NNW 339°NNW 340°NNW 343°NNW 329°NNW 327°NW 326°NNW 328°NW 326°NNW 328°NNW 327°NNW 328°NNW 327°NW 324°NNW 329°NNW 328°NNW 330°NNW 328°NNW 329°NW 320°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)908792948884857774746654474441414245465257646972

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)749750751751752752752753755755755756756757757758758758758758759760761761

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index000000000.10.31.10.92.12.62.62.21.60.90.40.20000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)2.92.82.82.61.91.91.91.61.51.21.21.31.31.211.11.31.51.71.71.71.921.7
PM10 (µg/m³)3.43.43.43.22.22.22.22.32.31.91.922.121.92.12.22.52.72.82.92.92.83
Ozone (O₃) (µg/m³)474038393638404244495256606161626464646464646262
NO₂ (µg/m³)4.64.23.83.42.72.42.52.52.52.31.91.71.71.51.41.31.51.71.82.22.52.52.42.2
SO₂ (µg/m³)0.40.30.30.30.30.30.30.40.50.50.40.40.40.30.20.20.20.30.30.40.40.40.40.4
CO (µg/m³)164164160161161161162163163160159158160159159158159159161160157157157153

Helsinki on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.