Best year time to visit Hermansö

General weather information about Hermansö

Average annual temperature is 6.9 °C

Absolute maximum temperature: 27.7 °C

Absolute minimum temperature: -14.7 °C

Number of sunny days: 124 days

Number of rainy days: 199 days

Number of snow days: 42 days

Look at detailed online map of Hermansö

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

Hermansö air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.36.86.314.520.727.723.526.921.115.19.05.2
Average daytime temperature (°C)1.20.91.18.314.120.719.719.717.78.12.7-1.5
Average temperature (°C)-0.4-1.0-1.54.510.116.816.717.415.66.01.3-3.3
Average night temperature (°C)-2.3-3.7-4.70.74.911.513.215.012.93.5-0.5-5.3
Absolute minimum temperature (°C)-12.5-13.6-14.4-6.8-1.94.010.412.86.1-3.1-10.4-14.7

Hermansö monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.015.018.018.018.016.014.011.08.06.0
Daylight mean duration (h)6.99.211.814.617.218.717.915.612.910.17.66.1
Daylight minimum duration (h)6.07.010.013.015.018.016.014.011.08.06.05.0
Sunshine mean duration (h)1.23.25.711.113.515.613.59.67.84.81.30.9
Precipitation (mm)9748852333870137411138467
Sunny days101211192219339754
Rainy days1791111911282821241911
Snow days4790000000616

Best time to visit Hermansö:

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

  • April — 11.1(h)
  • May — 13.5(h)
  • June — 15.6(h)
  • July — 13.5(h)
  • August — 9.6(h)

Months with the longest average daylight duration in Hermansö:

  • May — 17.2(h)
  • June — 18.7(h)
  • July — 17.9(h)
  • August — 15.6(h)

The largest precipitation sum in Hermansö is at

  • January — 97(mm)
  • March — 85(mm)
  • August — 137(mm)
  • October — 113(mm)