Best year time to visit Österholmen

General weather information about Österholmen

Average annual temperature is 5.2 °C

Absolute maximum temperature: 30.5 °C

Absolute minimum temperature: -16.4 °C

Number of sunny days: 143 days

Number of rainy days: 171 days

Number of snow days: 51 days

Look at detailed online map of Österholmen

* Weather data for Österholmen Finland is based on climate observations for 2026 year

Österholmen air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.85.93.412.520.327.424.030.522.012.86.34.8
Average daytime temperature (°C)0.10.2-1.45.811.418.519.119.416.45.60.0-3.0
Average temperature (°C)-1.4-1.6-3.81.98.515.216.416.714.33.4-1.9-5.0
Average night temperature (°C)-3.0-3.7-6.9-2.05.111.313.213.611.91.2-4.5-7.7
Absolute minimum temperature (°C)-14.1-10.1-14.2-11.2-1.04.010.610.44.9-6.0-16.4-15.4

Österholmen monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.019.020.020.017.014.011.08.05.0
Daylight mean duration (h)6.08.811.814.918.020.019.016.113.09.96.95.0
Daylight minimum duration (h)4.07.010.013.016.019.017.014.011.08.05.04.0
Sunshine mean duration (h)1.33.86.310.313.615.512.89.47.45.30.80.6
Precipitation (mm)59285136413185143837510635
Sunny days10111323191585812712
Rainy days13597111523262219156
Snow days81290100000813

Österholmen - weather forecast by months

Österholmen weather in januaryÖsterholmen weather in februaryÖsterholmen weather in marchÖsterholmen weather in aprilÖsterholmen weather in mayÖsterholmen weather in juneÖsterholmen weather in julyÖsterholmen weather in augustÖsterholmen weather in septemberÖsterholmen weather in octoberÖsterholmen weather in novemberÖsterholmen weather in december

Best time to visit Österholmen:

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

  • April — 10.3(h)
  • May — 13.6(h)
  • June — 15.5(h)
  • July — 12.8(h)
  • August — 9.4(h)

Months with the longest average daylight duration in Österholmen:

  • May — 18.0(h)
  • June — 20.0(h)
  • July — 19.0(h)
  • August — 16.1(h)

The largest precipitation sum in Österholmen is at

  • July — 85(mm)
  • August — 143(mm)
  • September — 83(mm)
  • November — 106(mm)

    • Weather forecast in the closest to Österholmen admin centers

    Weather forecast in the closest towns to Österholmen

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    Frequently asked questions

    When is the best time to visit Österholmen?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Österholmen.
    What is the weather like in Österholmen?
    See average temperature, rainfall and daylight hours for Österholmen by month in the table above.
    How many sunny days does Österholmen have?
    The monthly weather statistics above show sunshine and rainfall patterns for Österholmen throughout the year.