Helsinki weather in April 2025

Expect daytime maximum temperatures of 45°F in Helsinki, Finland in April based on long-term weather averages. There are 6 hours of sunshine per day on average with 13 days with some rainfall.

  • 45°F maximum daytime temperature in April in Helsinki45
    45°F max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in April in Helsinki13
    13 days with some rainfall
  • 30°F minimum night-time temperature in April in Helsinki30
    30°F min night temperature
  • 15 hours of daylight per day in April in Helsinki15
    15 hours of daylight per day
  • No heat & humidity in April in Helsinki0
    No heat & humidity
  • 1.5 inches monthly rainfall in April in Helsinki1.5
    1.5 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in April in Helsinki3
    3 (Moderate) UV index
  • 32°F sea temperature in April in Helsinki32
    32°F sea temperature

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The April 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.

Metric (°C)  |  Imperial (°F)

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How cold is it in Helsinki in April?

Daytime temperatures usually reach 45°F in Helsinki in April, falling to 30°F at night.

How sunny is it in Helsinki in April?

There are normally 6 hours of bright sunshine each day in Helsinki in April - that's 38% of daylight hours.

How warm is the sea around Helsinki in April?

The average sea temperature around Helsinki in April is 32°F.

Does it rain in Helsinki in April?

There are usually 13 days with some rain in Helsinki in April and the average monthly rainfall is 1.5 inches.

Helsinki April sunrise & sunset times

Browse the sunrise and sunset times for Helsinki in April 2025. Select a month to view Helsinki sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st April 2025 05:45 19:05
Tuesday, 15th April 2025 05:03 19:39
Wednesday, 30th April 2025 04:20 20:17

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