Best year time to visit Herttuala

General weather information about Herttuala

Average annual temperature is 4.9 °C

Absolute maximum temperature: 27.4 °C

Absolute minimum temperature: -17.5 °C

Number of sunny days: 119 days

Number of rainy days: 173 days

Number of snow days: 73 days

Look at detailed online map of Herttuala

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

Herttuala air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)2.33.24.817.222.527.424.626.221.212.94.02.1
Average daytime temperature (°C)-2.2-2.7-1.37.914.419.719.120.216.94.6-1.4-5.1
Average temperature (°C)-3.8-4.7-3.82.410.315.916.417.514.32.8-2.8-6.7
Average night temperature (°C)-5.7-7.0-6.9-2.55.711.213.314.411.71.0-4.1-8.8
Absolute minimum temperature (°C)-15.4-17.5-14.5-13.5-3.22.011.39.18.1-5.9-13.6-13.8

Herttuala monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.018.019.019.017.014.011.08.05.0
Daylight mean duration (h)6.38.911.814.817.719.518.615.912.910.07.15.4
Daylight minimum duration (h)5.07.010.013.016.018.017.014.011.08.05.05.0
Sunshine mean duration (h)0.61.85.011.612.815.311.110.97.13.60.20.2
Precipitation (mm)713177173680157811031057648
Sunny days10852311147117968
Rainy days9597181624202317169
Snow days1215170200005814

Herttuala - weather forecast by months

Herttuala weather in januaryHerttuala weather in februaryHerttuala weather in marchHerttuala weather in aprilHerttuala weather in mayHerttuala weather in juneHerttuala weather in julyHerttuala weather in augustHerttuala weather in septemberHerttuala weather in octoberHerttuala weather in novemberHerttuala weather in december

Best time to visit Herttuala:

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

  • April — 11.6(h)
  • May — 12.8(h)
  • June — 15.3(h)
  • July — 11.1(h)
  • August — 10.9(h)

Months with the longest average daylight duration in Herttuala:

  • May — 17.7(h)
  • June — 19.5(h)
  • July — 18.6(h)
  • August — 15.9(h)

The largest precipitation sum in Herttuala is at

  • July — 157(mm)
  • September — 103(mm)
  • October — 105(mm)

    • Weather forecast in the closest to Herttuala admin centers

    Weather forecast in the closest towns to Herttuala

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    Frequently asked questions

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