Best year time to visit Istunmäki

General weather information about Istunmäki

Average annual temperature is 4.6 °C

Absolute maximum temperature: 27.4 °C

Absolute minimum temperature: -16.7 °C

Number of sunny days: 113 days

Number of rainy days: 178 days

Number of snow days: 74 days

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

Istunmäki air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)2.43.43.816.321.527.423.627.020.711.64.12.4
Average daytime temperature (°C)-1.9-2.2-1.47.314.119.618.920.116.64.1-1.5-4.9
Average temperature (°C)-3.4-4.3-4.21.79.615.516.217.014.02.4-3.0-6.3
Average night temperature (°C)-5.0-6.9-7.1-2.54.610.413.313.911.40.6-4.4-7.5
Absolute minimum temperature (°C)-13.1-16.7-15.3-8.5-3.21.911.110.47.1-6.9-15.1-11.9

Istunmäki monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.019.020.019.017.014.011.08.05.0
Daylight mean duration (h)6.18.811.814.917.919.918.916.013.09.96.95.1
Daylight minimum duration (h)5.07.010.013.016.019.017.014.011.08.05.04.0
Sunshine mean duration (h)0.62.55.010.512.114.710.310.96.23.50.10.4
Precipitation (mm)6227643650642088899796941
Sunny days78102212144731169
Rainy days115108171627242715135
Snow days13151102000051117

Istunmäki - weather forecast by months

Istunmäki weather in januaryIstunmäki weather in februaryIstunmäki weather in marchIstunmäki weather in aprilIstunmäki weather in mayIstunmäki weather in juneIstunmäki weather in julyIstunmäki weather in augustIstunmäki weather in septemberIstunmäki weather in octoberIstunmäki weather in novemberIstunmäki weather in december

Best time to visit Istunmäki:

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

  • April — 10.5(h)
  • May — 12.1(h)
  • June — 14.7(h)
  • July — 10.3(h)
  • August — 10.9(h)

Months with the longest average daylight duration in Istunmäki:

  • May — 17.9(h)
  • June — 19.9(h)
  • July — 18.9(h)
  • August — 16.0(h)

The largest precipitation sum in Istunmäki is at

  • July — 208(mm)
  • September — 99(mm)

    • Weather forecast in the closest to Istunmäki admin centers

    Weather forecast in the closest towns to Istunmäki

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    Frequently asked questions

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