Weather in Västerö in September

General weather information about Västerö

Average annual temperature is 4.6 °C

Absolute maximum temperature: 25.3 °C

Absolute minimum temperature: -14.6 °C

Number of sunny days: 155 days

Number of rainy days: 148 days

Number of snow days: 62 days

Look at detailed online map of Västerö

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

Västerö air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.14.62.75.314.823.223.125.319.312.65.33.8
Average daytime temperature (°C)-0.4-0.9-2.92.08.915.217.218.415.75.50.3-2.8
Average temperature (°C)-1.7-2.7-5.1-0.66.913.215.916.614.14.1-1.3-4.5
Average night temperature (°C)-3.2-4.7-7.6-3.15.011.314.414.512.32.6-3.3-6.4
Absolute minimum temperature (°C)-12.1-8.9-14.6-13.1-0.84.112.512.57.8-3.3-12.7-12.7

Västerö 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)5.88.711.815.018.220.319.216.213.09.86.84.8
Daylight minimum duration (h)4.07.010.013.016.019.017.014.011.08.05.04.0
Sunshine mean duration (h)1.53.15.69.713.015.012.210.06.95.30.70.5
Precipitation (mm)50254838372210510775978046
Sunny days121313201921126813612
Rainy days1243910919252217126
Snow days7111512000011213

Västerö - weather forecast by months

Västerö weather in januaryVästerö weather in februaryVästerö weather in marchVästerö weather in aprilVästerö weather in mayVästerö weather in juneVästerö weather in julyVästerö weather in augustVästerö weather in septemberVästerö weather in octoberVästerö weather in novemberVästerö weather in december

Best time to visit Västerö:

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

  • April — 9.7(h)
  • May — 13.0(h)
  • June — 15.0(h)
  • July — 12.2(h)
  • August — 10.0(h)

Months with the longest average daylight duration in Västerö:

  • May — 18.2(h)
  • June — 20.3(h)
  • July — 19.2(h)
  • August — 16.2(h)

The largest precipitation sum in Västerö is at

  • July — 105(mm)
  • August — 107(mm)
  • October — 97(mm)
  • November — 80(mm)

    • Weather forecast in the closest to Västerö admin centers

    Weather forecast in the closest towns to Västerö

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    Frequently asked questions

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