5-day weather forecast Helsinki Oct 3, 2026

15°11° · Sunny

Weather forecast Helsinki Saturday Oct 3, 2026: sunny, temperature from 11 °C to 15 °C.

Precipitation probability 32%. Wind up to 4.61 m/s (gusts 10.31 m/s). Air humidity 72–97%, atmospheric pressure 766–773 mm Hg, UV index up to 1.2.

5 days at a glance — tap a day to open it
Sunrise 07:31
Sunset 18:47
Last Quarter45% illuminated
Moonrise 20:49 · Moonset 17:13
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Table

Forecast from 11 °C to 15 °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)121212121112121212121314141414151514131312121111
Precipitation (mm/hr)000000000000000000000000

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 (%)0000981001001003040754310010086394553718158
Rain chance (%)14151515323232301616201321211972010111315222120

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)2.612.612.692.692.812.6933.393.613.814.114.394.614.54.114.614.394.11443.813.312.892.61
Wind gust (m/s)6.696.617.227.147.426.9289.429.729.899.618.618.198.118.58.429.119.229.7210.319.728.898.727.81
Wind direction (°)SSW 207°SSW 203°SSW 203°SSW 198°SSW 202°SSW 193°SSW 195°SSW 200°SSW 198°SSW 199°SSW 200°SSW 203°SSW 207°SSW 211°SSW 213°SW 217°SW 221°SW 223°SW 222°SW 226°SW 229°WSW 238°WSW 243°WSW 239°

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 (%)939494949494939190888379757576727580859094969796

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)773773773773772772771771770770770770770769769768768767767767767767767766

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 Index0000000000.20.40.81.21.2110.70.30.100000

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)7.8887.97.37.17.17.37.47.67.66.46.26.26.26.56.87.58.38.89.710.110.19.4
PM10 (µg/m³)10.79.49.29.18.387.988.48.78.67.77.77.98.28.69.11011.211.81313.513.512.6
Ozone (O₃) (µg/m³)575659.564.57069676461595960616366686765625956545455
NO₂ (µg/m³)15.713.71310.276.86.87.17.57.66.95.84.84.13.53.54.35.66.87.88.68.98.47.4
SO₂ (µg/m³)1.31.10.90.80.60.60.60.60.70.70.70.70.70.80.911111.11.21.21.11
CO (µg/m³)195232284.5348418425406342252183155147143137135134134136139146154161166170

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.