Helsinki weather in August 2019

  • 20°C maximum daytime temperature in August in Helsinki20
    20°C max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in August in Helsinki16
    16 days with some rainfall
  • 11°C minimum night-time temperature in August in Helsinki11
    11°C min night temperature
  • 16 hours of daylight per day in August in Helsinki16
    16 hours of daylight per day
  • No heat & humidity in August in Helsinki0
    No heat & humidity
  • 77 mm monthly rainfall in August in Helsinki77
    77 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in Helsinki4
    4 (Moderate) UV index
  • 16°C sea temperature in August in Helsinki16
    16°C sea temperature
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The August weather guide for Helsinki, Finland shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

Guide to Helsinki weather in August

The average maximum daytime temperature in Helsinki in August is a comfortable 20°C (68°F). The average night-time temperature is usually a cool 11°C (52°F). There are usually 7 hours of bright sunshine each day, which represents 42% of the 16 hours of daylight.

Expect 77mm (3.0 inches) of rainfall across the whole of August with 16 days with some rain falling. Maximum UV levels will be moderate (4 UV index) at midday when the skies are clear.

The average sea temperature in and around Helsinki in August is 16°C (61°F).

Helsinki sunrise & sunset times for August 2019

Browse the sunrise & sunset times for Helsinki in August 2019. Select a month to view Helsinki sunrise & sunset times for the next twelve months.

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Date Sunrise times Sunset times
Thursday, 1st August 2019 04:59 21:53
Friday, 16th August 2019 05:35 21:12
Saturday, 31st August 2019 06:11 20:28
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Where's hot in Finland in August?

Below are average maximum temperatures at popular destinations in Finland in August. Select a destination to see more weather parameters.

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