Best year time to visit Björnö

General weather information about Björnö

Average annual temperature is 5.3 °C

Absolute maximum temperature: 31.1 °C

Absolute minimum temperature: -20.9 °C

Number of sunny days: 146 days

Number of rainy days: 163 days

Number of snow days: 56 days

Look at detailed online map of Björnö

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

Björnö air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.95.24.216.320.128.724.431.122.213.36.45.2
Average daytime temperature (°C)0.20.4-0.28.112.619.319.719.716.85.9-0.1-3.1
Average temperature (°C)-1.5-1.7-3.43.18.815.516.316.514.13.4-2.0-5.6
Average night temperature (°C)-3.0-4.6-8.6-1.84.410.312.313.211.21.2-4.3-8.5
Absolute minimum temperature (°C)-14.6-14.7-20.9-13.3-3.73.49.79.52.7-6.5-15.8-15.8

Björnö monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.019.019.019.017.014.011.08.05.0
Daylight mean duration (h)6.28.911.814.917.819.718.716.013.09.97.15.2
Daylight minimum duration (h)5.07.010.013.016.019.017.014.011.08.05.05.0
Sunshine mean duration (h)1.33.45.810.613.515.612.99.77.15.40.90.2
Precipitation (mm)59337234401695139106919928
Sunny days101310211720567141112
Rainy days13599131026252314115
Snow days810120100003814

Björnö - weather forecast by months

Björnö weather in januaryBjörnö weather in februaryBjörnö weather in marchBjörnö weather in aprilBjörnö weather in mayBjörnö weather in juneBjörnö weather in julyBjörnö weather in augustBjörnö weather in septemberBjörnö weather in octoberBjörnö weather in novemberBjörnö weather in december

Best time to visit Björnö:

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

  • April — 10.6(h)
  • May — 13.5(h)
  • June — 15.6(h)
  • July — 12.9(h)
  • August — 9.7(h)

Months with the longest average daylight duration in Björnö:

  • May — 17.8(h)
  • June — 19.7(h)
  • July — 18.7(h)
  • August — 16.0(h)

The largest precipitation sum in Björnö is at

  • July — 95(mm)
  • August — 139(mm)
  • September — 106(mm)
  • October — 91(mm)
  • November — 99(mm)

    • Weather forecast in the closest to Björnö admin centers

    Weather forecast in the closest towns to Björnö

    Explore Björnö

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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