5-day weather forecast Helsinki 22-08-2026

Weather forecast Helsinki Saturday, August 22 22.08.2026: mist, temperature from 12 °C to 19 °C.

Precipitation probability 44%. Wind up to 4 m/s (gusts 8.69 m/s). Air humidity 54–96%, atmospheric pressure 755–758 mm Hg, UV index up to 3.4.

Sunrise 05:51
Sunset 20:55
Waxing Gibbous78% illuminated
Moonrise 19:58 · Moonset 23:02
Chart
Table

Forecast from 12 °C to 19 °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)131313131312121214151718191919191919191817151413
Precipitation (mm/hr)000.12000000000.0100.370.310.030.020.02000000

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 (%)116780693910035172819100668596100521003315558100
Rain chance (%)151944193025392314117171036361891535351120

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)21.510.390.691.191.1111.391.611.522.613.53.813.613.543.693.893.392.812.892.81
Wind gust (m/s)3.141.611.111.0311.421.191.142.312.922.643.033.223.613.894.113.924.895.727.197.617.318.697.92
Wind direction (°)SE 128°SE 126°ESE 113°E 92°WSW 253°WNW 289°NW 308°W 280°W 260°WSW 248°SW 221°SSW 212°SSW 193°S 183°S 187°S 190°S 188°SSW 202°SW 218°SW 228°WSW 243°WSW 257°W 278°WNW 284°

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 (%)929495959596969488807166646566636158545559677074

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)755756756756756757757757757758758758758758758757757757757757757757758758

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 Index00000000.10.40.91.52.22.83.43.22.721.20.60.20000

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)3.53.43.33.83.732.833.33.93.644.23.943.53.12.72.63333.13.2
PM10 (µg/m³)4.54.54.65.24.53.83.73.94.3554.74.94.84.94.23.63.33.13.43.843.94
Ozone (O₃) (µg/m³)747574666467646066687381879393929192939593857872
NO₂ (µg/m³)9.48.58.89.59.49.210.311.812.511.510.37.25.35.25.25.84.24.44.45.46.16.46.16.2
SO₂ (µg/m³)0.40.40.40.50.40.40.40.50.60.70.50.50.40.30.40.30.30.20.20.30.30.30.30.3
CO (µg/m³)144144143146146145145148166159161157161160164159154155157157157154157156

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.