Best year time to visit Jämäs

General weather information about Jämäs

Average annual temperature is 3.2 °C

Absolute maximum temperature: 27.4 °C

Absolute minimum temperature: -22.0 °C

Number of sunny days: 118 days

Number of rainy days: 150 days

Number of snow days: 97 days

Look at detailed online map of Jämäs

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

Jämäs air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.11.92.613.223.024.923.827.421.210.92.11.6
Average daytime temperature (°C)-3.0-4.0-3.06.213.718.217.719.915.42.7-3.4-6.1
Average temperature (°C)-4.8-6.2-6.30.49.313.914.716.412.60.9-5.1-7.6
Average night temperature (°C)-6.8-8.3-10.2-4.63.99.111.312.79.7-0.7-7.1-9.2
Absolute minimum temperature (°C)-22.0-16.5-21.8-10.7-7.21.28.18.05.9-6.6-16.9-15.3

Jämäs monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.019.021.020.017.014.011.08.05.0
Daylight mean duration (h)5.68.611.815.118.420.819.616.313.09.86.54.4
Daylight minimum duration (h)4.07.010.013.016.020.018.014.011.08.05.04.0
Sunshine mean duration (h)1.01.64.910.511.914.28.110.35.12.50.10.2
Precipitation (mm)692069435111319292104746051
Sunny days1112102214105861073
Rainy days711715202623241772
Snow days13152012000041626

Jämäs - weather forecast by months

Jämäs weather in januaryJämäs weather in februaryJämäs weather in marchJämäs weather in aprilJämäs weather in mayJämäs weather in juneJämäs weather in julyJämäs weather in augustJämäs weather in septemberJämäs weather in octoberJämäs weather in novemberJämäs weather in december

Best time to visit Jämäs:

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

  • April — 10.5(h)
  • May — 11.9(h)
  • June — 14.2(h)
  • July — 8.1(h)
  • August — 10.3(h)

Months with the longest average daylight duration in Jämäs:

  • May — 18.4(h)
  • June — 20.8(h)
  • July — 19.6(h)
  • August — 16.3(h)

The largest precipitation sum in Jämäs is at

  • June — 113(mm)
  • July — 192(mm)
  • September — 104(mm)

    • Weather forecast in the closest to Jämäs admin centers

    Weather forecast in the closest towns to Jämäs

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    MapTrains schedule
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    Frequently asked questions

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