Best year time to visit Karstu

General weather information about Karstu

Average annual temperature is 6.3 °C

Absolute maximum temperature: 28.8 °C

Absolute minimum temperature: -17.2 °C

Number of sunny days: 133 days

Number of rainy days: 181 days

Number of snow days: 51 days

Look at detailed online map of Karstu

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

Karstu air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.56.16.417.123.228.824.428.221.414.87.73.6
Average daytime temperature (°C)0.0-0.11.09.715.521.920.120.217.97.11.7-2.6
Average temperature (°C)-2.0-2.4-2.14.110.516.916.617.115.14.90.2-4.2
Average night temperature (°C)-4.4-6.2-5.9-1.24.510.513.114.212.12.7-1.5-5.9
Absolute minimum temperature (°C)-14.8-15.8-17.2-9.2-1.93.710.811.95.8-2.5-11.3-14.0

Karstu 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)1.12.65.711.412.915.713.29.47.64.31.20.4
Precipitation (mm)9437821450178914545928760
Sunny days1013102220185610667
Rainy days146118101226252024178
Snow days79100100001716

Karstu - weather forecast by months

Karstu weather in januaryKarstu weather in februaryKarstu weather in marchKarstu weather in aprilKarstu weather in mayKarstu weather in juneKarstu weather in julyKarstu weather in augustKarstu weather in septemberKarstu weather in octoberKarstu weather in novemberKarstu weather in december

Best time to visit Karstu:

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

  • April — 11.4(h)
  • May — 12.9(h)
  • June — 15.7(h)
  • July — 13.2(h)
  • August — 9.4(h)

Months with the longest average daylight duration in Karstu:

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

The largest precipitation sum in Karstu is at

  • January — 94(mm)
  • July — 89(mm)
  • August — 145(mm)
  • October — 92(mm)
  • November — 87(mm)

    • Weather forecast in the closest to Karstu admin centers

    Weather forecast in the closest towns to Karstu

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    MapTrains schedule
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    Frequently asked questions

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