Helsinki weather in August 2023

  • 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 Finland (Helsinki) 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)

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How hot is it in Helsinki in August?

Daytime temperatures usually reach 20°C in Helsinki in August, falling to 11°C at night.

How sunny is it in Helsinki in August?

There are normally 7 hours of bright sunshine each day in Helsinki in August - that's 42% of daylight hours.

How warm is the sea around Helsinki in August?

The average sea temperature around Helsinki in August is 16°C.

Does it rain in Helsinki in August?

There are usually 16 days with some rain in Helsinki in August and the average monthly rainfall is 77mm.

Helsinki August sunrise & sunset times

Browse the sunrise and sunset times for Helsinki in August 2023. Select a month to view Helsinki sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st August 2023 04:59 21:53
Wednesday, 16th August 2023 05:35 21:12
Thursday, 31st August 2023 06:11 20:28

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