Best year time to visit Ilomantsi

General weather information about Ilomantsi

Average annual temperature is 3.5 °C

Absolute maximum temperature: 28.3 °C

Absolute minimum temperature: -21.6 °C

Number of sunny days: 110 days

Number of rainy days: 167 days

Number of snow days: 88 days

Look at detailed online map of Ilomantsi

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

Ilomantsi air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)1.92.14.017.222.224.924.428.321.010.72.11.4
Average daytime temperature (°C)-3.2-3.9-1.97.614.518.918.320.416.13.0-3.1-6.6
Average temperature (°C)-5.0-6.1-4.91.49.914.414.916.613.00.9-4.7-8.3
Average night temperature (°C)-7.0-8.3-8.1-3.64.88.911.112.89.9-1.1-6.5-10.1
Absolute minimum temperature (°C)-21.6-16.7-15.4-12.6-4.21.46.87.55.6-7.7-19.5-17.2

Ilomantsi 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)6.08.811.814.918.020.019.016.113.09.96.95.0
Daylight minimum duration (h)5.07.010.013.016.019.017.014.011.08.05.04.0
Sunshine mean duration (h)0.51.54.410.512.314.28.79.95.93.00.10.2
Precipitation (mm)683086284681187105136846644
Sunny days12772011115951445
Rainy days7368181926222515144
Snow days12181822000021222

Ilomantsi - weather forecast by months

Ilomantsi weather in januaryIlomantsi weather in februaryIlomantsi weather in marchIlomantsi weather in aprilIlomantsi weather in mayIlomantsi weather in juneIlomantsi weather in julyIlomantsi weather in augustIlomantsi weather in septemberIlomantsi weather in octoberIlomantsi weather in novemberIlomantsi weather in december

Best time to visit Ilomantsi:

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

  • April — 10.5(h)
  • May — 12.3(h)
  • June — 14.2(h)
  • July — 8.7(h)
  • August — 9.9(h)

Months with the longest average daylight duration in Ilomantsi:

  • May — 18.0(h)
  • June — 20.0(h)
  • July — 19.0(h)
  • August — 16.1(h)

The largest precipitation sum in Ilomantsi is at

  • July — 187(mm)
  • August — 105(mm)
  • September — 136(mm)

    • Weather forecast in the closest to Ilomantsi admin centers

    Weather forecast in the closest towns to Ilomantsi

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    Frequently asked questions

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