Weather in Ilosjoki in September

General weather information about Ilosjoki

Average annual temperature is 4.2 °C

Absolute maximum temperature: 28.4 °C

Absolute minimum temperature: -18.6 °C

Number of sunny days: 128 days

Number of rainy days: 166 days

Number of snow days: 71 days

Look at detailed online map of Ilosjoki

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

Ilosjoki air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.04.03.416.322.228.423.827.521.711.23.42.2
Average daytime temperature (°C)-2.2-2.1-1.77.014.320.219.019.916.13.4-2.2-5.3
Average temperature (°C)-3.8-4.4-5.01.59.515.615.816.613.21.3-4.0-6.7
Average night temperature (°C)-5.8-7.1-8.9-3.63.99.812.313.010.3-0.8-5.8-8.2
Absolute minimum temperature (°C)-17.2-15.6-18.6-10.9-3.80.110.98.83.6-8.2-16.8-15.0

Ilosjoki monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.019.020.020.017.014.011.08.05.0
Daylight mean duration (h)5.98.711.815.018.120.319.216.213.09.86.84.8
Daylight minimum duration (h)4.07.010.013.016.019.017.014.011.08.05.04.0
Sunshine mean duration (h)1.02.25.410.211.714.010.19.96.13.60.10.4
Precipitation (mm)71294659445316695118617241
Sunny days811142213135941388
Rainy days11268171726222615106
Snow days12151101000031217

Ilosjoki - weather forecast by months

Ilosjoki weather in januaryIlosjoki weather in februaryIlosjoki weather in marchIlosjoki weather in aprilIlosjoki weather in mayIlosjoki weather in juneIlosjoki weather in julyIlosjoki weather in augustIlosjoki weather in septemberIlosjoki weather in octoberIlosjoki weather in novemberIlosjoki weather in december

Best time to visit Ilosjoki:

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

  • April — 10.2(h)
  • May — 11.7(h)
  • June — 14.0(h)
  • July — 10.1(h)
  • August — 9.9(h)

Months with the longest average daylight duration in Ilosjoki:

  • May — 18.1(h)
  • June — 20.3(h)
  • July — 19.2(h)
  • August — 16.2(h)

The largest precipitation sum in Ilosjoki is at

  • July — 166(mm)
  • August — 95(mm)
  • September — 118(mm)

    • Weather forecast in the closest to Ilosjoki admin centers

    Weather forecast in the closest towns to Ilosjoki

    Explore Ilosjoki

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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