Best year time to visit Ollonen

General weather information about Ollonen

Average annual temperature is 5.7 °C

Absolute maximum temperature: 29.7 °C

Absolute minimum temperature: -18.3 °C

Number of sunny days: 127 days

Number of rainy days: 175 days

Number of snow days: 63 days

Look at detailed online map of Ollonen

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

Ollonen air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.06.17.318.424.629.626.429.722.314.88.34.0
Average daytime temperature (°C)-0.8-0.71.110.615.922.221.121.018.36.00.8-3.4
Average temperature (°C)-2.9-3.3-2.84.610.716.516.516.814.43.4-0.9-5.4
Average night temperature (°C)-4.9-7.5-7.3-1.54.59.911.812.610.81.1-3.2-7.9
Absolute minimum temperature (°C)-16.2-18.3-18.0-10.8-2.62.38.68.34.9-4.2-12.4-16.1

Ollonen 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)6.69.111.814.717.419.018.215.712.910.17.45.8
Daylight minimum duration (h)5.07.010.013.016.018.017.014.011.08.06.05.0
Sunshine mean duration (h)0.82.44.711.412.514.813.09.07.14.00.50.3
Precipitation (mm)87347118465210912772866751
Sunny days1012724141531091256
Rainy days135106161528212117149
Snow days8111401000021116

Ollonen - weather forecast by months

Ollonen weather in januaryOllonen weather in februaryOllonen weather in marchOllonen weather in aprilOllonen weather in mayOllonen weather in juneOllonen weather in julyOllonen weather in augustOllonen weather in septemberOllonen weather in octoberOllonen weather in novemberOllonen weather in december

Best time to visit Ollonen:

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

  • April — 11.4(h)
  • May — 12.5(h)
  • June — 14.8(h)
  • July — 13.0(h)
  • August — 9.0(h)

Months with the longest average daylight duration in Ollonen:

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

The largest precipitation sum in Ollonen is at

  • January — 87(mm)
  • July — 109(mm)
  • August — 127(mm)

    • Weather forecast in the closest to Ollonen admin centers

    Weather forecast in the closest towns to Ollonen

    Explore Ollonen

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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