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Climate · Helsinki

Helsinki in August

Warm and damp, as the days shorten.

Typical weather, averaged over 30 years

August in Helsinki is warm: highs near 72°F, lows near 58°F. Rain falls on about three days a week, and the days shorten by 2 hours 32 minutes from the first week to the last.August in Helsinki is warm: highs near 22°C, lows near 14°C. Rain falls on about three days a week, and the days shorten by 2 hours 32 minutes from the first week to the last.

High
72°F22°Caverage
Low
58°F14°Caverage
Wet days
3a week · 43% of days
Daylight
15h 32mon average

Is August a good time to visit Helsinki?

Yes. August is one of Helsinki's best months (July to August).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How August sits in the year

week by week

Temperature

Highs near 72°F in August, against 30°F to 73°F through the year.Highs near 22°C in August, against -1°C to 23°C through the year.

Chance of a wet day

43% of days in August, against 30% to 48% through the year.

Cloud cover

51% cover in August, against 49% to 77% through the year.

Daylight

15h 32m in August, against 5h 57m to 18h 46m through the year.

Week by week, lightly smoothed, with August shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. July73°23°low 58°low 14°3 wet days a weekRain on about three days a week.
  2. August72°22°low 58°low 14°3 wet days a weekRain on about three days a week.
  3. September63°17°low 51°low 11°3 wet days a weekRain on about three days a week.

Where Helsinki sits, in August

Europe/Helsinki
this place
typical high in August 40°F4°C95°F35°C
Sunrise, mid-August
5:32 AMsets 9:18 PM
Above the sea
0 mlow-lying
Latitude
60.2°Nnorthern hemisphere
Nearest of ours
Rovaniemi706 km north

The land around Helsinki, shaded by its typical high in August, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Finland in August

high · low · wet days
See August on the planning mapThe whole year in Helsinki

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Helsinki. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.