Best year time to visit Sastamala

General weather information about Sastamala

Average annual temperature is 5.7 °C

Absolute maximum temperature: 30.1 °C

Absolute minimum temperature: -17.2 °C

Number of sunny days: 132 days

Number of rainy days: 170 days

Number of snow days: 63 days

Look at detailed online map of Sastamala

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

Sastamala air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.76.26.317.622.929.924.730.122.814.37.04.2
Average daytime temperature (°C)-0.3-0.30.610.315.521.320.320.318.16.00.3-3.4
Average temperature (°C)-1.9-2.6-3.04.310.216.416.316.714.53.6-1.2-5.1
Average night temperature (°C)-3.8-5.8-7.2-1.34.310.412.113.211.11.3-3.0-7.2
Absolute minimum temperature (°C)-13.9-15.0-17.2-15.0-2.83.010.19.85.6-5.7-13.4-14.7

Sastamala 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)6.59.011.814.717.519.218.415.812.910.07.35.6
Daylight minimum duration (h)5.07.010.013.016.018.017.014.011.08.06.05.0
Sunshine mean duration (h)0.93.05.111.312.314.611.88.97.44.40.70.3
Precipitation (mm)722990304440148199781028630
Sunny days914620181847710811
Rainy days112910121227242321127
Snow days11121601000001013

Sastamala - weather forecast by months

Sastamala weather in januarySastamala weather in februarySastamala weather in marchSastamala weather in aprilSastamala weather in maySastamala weather in juneSastamala weather in julySastamala weather in augustSastamala weather in septemberSastamala weather in octoberSastamala weather in novemberSastamala weather in december

Best time to visit Sastamala:

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

  • April — 11.3(h)
  • May — 12.3(h)
  • June — 14.6(h)
  • July — 11.8(h)
  • August — 8.9(h)

Months with the longest average daylight duration in Sastamala:

  • May — 17.5(h)
  • June — 19.2(h)
  • July — 18.4(h)
  • August — 15.8(h)

The largest precipitation sum in Sastamala is at

  • July — 148(mm)
  • August — 199(mm)
  • October — 102(mm)

    • Weather forecast in the closest to Sastamala admin centers

    Weather forecast in the closest towns to Sastamala

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    Frequently asked questions

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