Best year time to visit Kostiainen

General weather information about Kostiainen

Average annual temperature is 6.1 °C

Absolute maximum temperature: 31.6 °C

Absolute minimum temperature: -17.3 °C

Number of sunny days: 140 days

Number of rainy days: 175 days

Number of snow days: 50 days

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

Kostiainen air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.26.86.016.023.028.924.231.622.715.37.85.8
Average daytime temperature (°C)0.70.81.310.214.621.320.320.218.07.01.3-2.5
Average temperature (°C)-1.1-1.5-2.44.39.716.316.416.714.74.7-0.5-4.4
Average night temperature (°C)-2.8-4.3-6.8-1.44.210.212.313.411.52.3-2.6-7.1
Absolute minimum temperature (°C)-13.6-12.5-17.3-14.5-2.53.39.810.85.3-5.0-12.7-14.9

Kostiainen monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.018.019.019.017.014.011.08.06.0
Daylight mean duration (h)6.69.011.814.717.419.018.215.712.910.17.45.8
Daylight minimum duration (h)5.07.010.013.016.018.017.014.011.08.06.05.0
Sunshine mean duration (h)1.33.05.710.813.315.812.79.58.04.91.20.4
Precipitation (mm)753492373717131159681208225
Sunny days10147182121551111710
Rainy days14713128926261917168
Snow days77110200003713

Kostiainen - weather forecast by months

Kostiainen weather in januaryKostiainen weather in februaryKostiainen weather in marchKostiainen weather in aprilKostiainen weather in mayKostiainen weather in juneKostiainen weather in julyKostiainen weather in augustKostiainen weather in septemberKostiainen weather in octoberKostiainen weather in novemberKostiainen weather in december

Best time to visit Kostiainen:

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

  • April — 10.8(h)
  • May — 13.3(h)
  • June — 15.8(h)
  • July — 12.7(h)
  • August — 9.5(h)

Months with the longest average daylight duration in Kostiainen:

  • May — 17.4(h)
  • June — 19.0(h)
  • July — 18.2(h)
  • August — 15.7(h)

The largest precipitation sum in Kostiainen is at

  • March — 92(mm)
  • July — 131(mm)
  • August — 159(mm)
  • October — 120(mm)

    • Weather forecast in the closest to Kostiainen admin centers

    Weather forecast in the closest towns to Kostiainen

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    Frequently asked questions

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