Best year time to visit Tennby

General weather information about Tennby

Average annual temperature is 6.6 °C

Absolute maximum temperature: 30.1 °C

Absolute minimum temperature: -16.4 °C

Number of sunny days: 135 days

Number of rainy days: 189 days

Number of snow days: 41 days

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

Tennby air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.26.76.516.224.329.423.530.121.714.88.64.5
Average daytime temperature (°C)1.20.71.19.814.421.719.819.917.67.62.1-2.0
Average temperature (°C)-0.6-1.3-2.14.610.017.016.817.115.35.40.4-3.6
Average night temperature (°C)-2.3-4.0-6.0-0.74.710.913.414.612.53.1-1.7-5.4
Absolute minimum temperature (°C)-11.3-12.8-16.4-13.9-2.63.311.212.15.8-4.5-11.3-14.3

Tennby monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.015.018.018.018.016.014.011.08.06.0
Daylight mean duration (h)6.89.111.814.617.218.818.015.612.910.17.55.9
Daylight minimum duration (h)5.07.010.013.016.018.016.014.011.08.06.05.0
Sunshine mean duration (h)1.43.46.211.013.315.613.89.37.95.11.30.4
Precipitation (mm)824385314136110176471279446
Sunny days1213112122182410778
Rainy days16911991229272023168
Snow days3690000001715

Tennby - weather forecast by months

Tennby weather in januaryTennby weather in februaryTennby weather in marchTennby weather in aprilTennby weather in mayTennby weather in juneTennby weather in julyTennby weather in augustTennby weather in septemberTennby weather in octoberTennby weather in novemberTennby weather in december

Best time to visit Tennby:

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

  • April — 11.0(h)
  • May — 13.3(h)
  • June — 15.6(h)
  • July — 13.8(h)
  • August — 9.3(h)

Months with the longest average daylight duration in Tennby:

  • May — 17.2(h)
  • June — 18.8(h)
  • July — 18.0(h)
  • August — 15.6(h)

The largest precipitation sum in Tennby is at

  • July — 110(mm)
  • August — 176(mm)
  • October — 127(mm)

    • Weather forecast in the closest to Tennby admin centers

    Weather forecast in the closest towns to Tennby

    Explore Tennby

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    Frequently asked questions

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