Weather in Koskenmäki in September

General weather information about Koskenmäki

Average annual temperature is 6.1 °C

Absolute maximum temperature: 29.2 °C

Absolute minimum temperature: -17.3 °C

Number of sunny days: 132 days

Number of rainy days: 172 days

Number of snow days: 61 days

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

Koskenmäki air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.36.37.117.723.329.224.328.921.414.78.24.2
Average daytime temperature (°C)-0.3-0.11.210.615.922.020.920.918.36.81.5-3.0
Average temperature (°C)-2.4-2.8-2.34.810.716.716.717.014.84.3-0.3-4.8
Average night temperature (°C)-4.6-6.9-6.6-0.94.610.212.413.311.51.8-2.5-7.1
Absolute minimum temperature (°C)-17.3-15.7-16.5-10.2-2.03.59.29.86.0-4.2-11.3-14.9

Koskenmäki monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.015.018.019.018.016.014.011.08.06.0
Daylight mean duration (h)6.79.111.814.617.318.918.115.612.910.17.55.9
Daylight minimum duration (h)5.07.010.013.016.018.017.014.011.08.06.05.0
Sunshine mean duration (h)0.92.35.611.213.015.513.38.87.64.10.90.5
Precipitation (mm)11043772138387815567897460
Sunny days811922171739101178
Rainy days12688131328222018159
Snow days1111140100002814

Koskenmäki - weather forecast by months

Koskenmäki weather in januaryKoskenmäki weather in februaryKoskenmäki weather in marchKoskenmäki weather in aprilKoskenmäki weather in mayKoskenmäki weather in juneKoskenmäki weather in julyKoskenmäki weather in augustKoskenmäki weather in septemberKoskenmäki weather in octoberKoskenmäki weather in novemberKoskenmäki weather in december

Best time to visit Koskenmäki:

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

  • April — 11.2(h)
  • May — 13.0(h)
  • June — 15.5(h)
  • July — 13.3(h)
  • August — 8.8(h)

Months with the longest average daylight duration in Koskenmäki:

  • May — 17.3(h)
  • June — 18.9(h)
  • July — 18.1(h)
  • August — 15.6(h)

The largest precipitation sum in Koskenmäki is at

  • January — 110(mm)
  • August — 155(mm)

    • Weather forecast in the closest to Koskenmäki admin centers

    Weather forecast in the closest towns to Koskenmäki

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    Frequently asked questions

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