Weather in Björnvik in September

General weather information about Björnvik

Average annual temperature is 4.7 °C

Absolute maximum temperature: 28.4 °C

Absolute minimum temperature: -14.1 °C

Number of sunny days: 136 days

Number of rainy days: 155 days

Number of snow days: 74 days

Look at detailed online map of Björnvik

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

Björnvik air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.24.43.711.921.025.423.928.421.612.05.14.4
Average daytime temperature (°C)-0.5-0.7-3.03.710.917.017.819.216.04.80.0-3.2
Average temperature (°C)-1.9-2.6-5.30.37.714.216.016.914.03.4-1.8-4.8
Average night temperature (°C)-3.4-4.6-7.8-3.14.610.914.114.511.92.0-3.8-6.5
Absolute minimum temperature (°C)-11.1-10.1-14.1-13.6-1.42.911.612.08.2-4.8-13.5-11.7

Björnvik 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)5.78.611.815.118.320.619.416.313.09.86.64.6
Daylight minimum duration (h)4.07.010.013.016.019.017.014.011.08.05.04.0
Sunshine mean duration (h)1.33.26.19.613.214.812.210.36.64.80.80.3
Precipitation (mm)57274143363210512281928040
Sunny days713131919237551348
Rainy days1253811724262517116
Snow days12101531000011517

Björnvik - weather forecast by months

Björnvik weather in januaryBjörnvik weather in februaryBjörnvik weather in marchBjörnvik weather in aprilBjörnvik weather in mayBjörnvik weather in juneBjörnvik weather in julyBjörnvik weather in augustBjörnvik weather in septemberBjörnvik weather in octoberBjörnvik weather in novemberBjörnvik weather in december

Best time to visit Björnvik:

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

  • April — 9.6(h)
  • May — 13.2(h)
  • June — 14.8(h)
  • July — 12.2(h)
  • August — 10.3(h)

Months with the longest average daylight duration in Björnvik:

  • May — 18.3(h)
  • June — 20.6(h)
  • July — 19.4(h)
  • August — 16.3(h)

The largest precipitation sum in Björnvik is at

  • July — 105(mm)
  • August — 122(mm)
  • September — 81(mm)
  • October — 92(mm)
  • November — 80(mm)

    • Weather forecast in the closest to Björnvik admin centers

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    Frequently asked questions

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