Best year time to visit Helsinki

General weather information about Helsinki

Average annual temperature is 6.4 °C

Absolute maximum temperature: 23.6 °C

Absolute minimum temperature: -10.9 °C

Number of sunny days: 136

Number of rainy days: 177

Number of snow days: 52

Average annual precipitation: 818 mm

Look at detailed online map of Helsinki

* Weather data for Helsinki Finland is based on climate observations for 2023 year

Helsinki air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 3.3 5.4 4 10.5 15.3 23.6 18.8 22.7 19.3 14.6 9.5 4.1
Average daytime temperature (°C) 0.6 0.5 0.7 5 9.9 15.9 16.6 18.3 17.2 8.3 3.2 -1
Average temperature (°C) -0.9 -1.3 -1.2 3 7.9 13.9 15.4 17.1 15.9 6.5 1.7 -2.5
Average night temperature (°C) -2.3 -3.6 -3.4 0.9 5.6 11.8 13.9 15.6 14.1 4.6 0.1 -4
Absolute minimum temperature (°C) -10 -10.2 -10.5 -5.9 -0.5 5.1 12.5 13.8 9.2 -2 -9 -10.9

Helsinki monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 7.9 10.4 13.2 15.9 18.3 18.9 18.8 16.9 14.2 11.5 8.7 6.4
Daylight mean duration (h) 6.8 9.1 11.8 14.6 17.2 18.8 18 15.6 12.9 10.1 7.5 6
Daylight minimum duration (h) 6 8 10.4 13.3 16 18.3 17 14.3 11.6 8.8 6.5 5.8
Sunshine mean duration (h) 2.3 3.9 6.7 11.2 13.6 15.7 13.2 10 8.4 5.2 2.4 1.9
Precipitation (mm) 103 50 74 16 31 24 74 108 52 127 90 68
Sunny days 6 9 9 22 19 23 11 12 12 6 4 3
Rainy days 18 10 11 7 12 7 20 19 18 23 18 14
Snow days 7 9 11 1 2 8 14

Helsinki - weather forecast by months

January February March April May June July August September October November December

Best time to visit Helsinki:

The best time to visit Helsinki during the most sunny months:

  • May — 13.6(h)
  • June — 15.7(h)
  • July — 13.2(h)

Months with the longest average daylight duration in Helsinki:

  • May — 17.2(h)
  • June — 18.8(h)
  • July — 18(h)
  • August — 15.6(h)

The largest precipitation sum in Helsinki is at

  • January — 103(mm)
  • August — 108(mm)
  • October — 127(mm)
  • November — 90(mm)

Weather forecast in the closest to Helsinki admin centers