Best year time to visit Hertsön

General weather information about Hertsön

Average annual temperature is 3.3 °C

Absolute maximum temperature: 25.5 °C

Absolute minimum temperature: -19.4 °C

Number of sunny days: 160 days

Number of rainy days: 135 days

Number of snow days: 70 days

Look at detailed online map of Hertsön

* Weather data for Hertsön Sweden is based on climate observations for 2026 year

Hertsön air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)6.15.85.212.517.525.523.024.418.612.44.14.5
Average daytime temperature (°C)-1.9-1.6-3.32.710.917.918.418.414.63.1-3.0-4.6
Average temperature (°C)-4.5-4.3-6.6-0.57.414.716.116.412.00.7-5.0-7.1
Average night temperature (°C)-7.5-7.2-10.0-4.13.010.413.414.19.2-1.6-7.3-10.0
Absolute minimum temperature (°C)-17.9-19.0-19.4-10.0-4.62.89.79.32.8-10.7-14.1-18.0

Hertsön monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)6.09.013.017.020.023.022.018.014.011.07.04.0
Daylight mean duration (h)4.98.311.815.319.122.420.516.713.19.66.13.5
Daylight minimum duration (h)3.06.010.013.017.021.018.014.011.07.04.03.0
Sunshine mean duration (h)1.32.97.010.212.914.410.89.36.54.20.60.3
Precipitation (mm)7321374027326812383615852
Sunny days1617101920151081014138
Rainy days53489152123201377
Snow days1081732000041016

Best time to visit Hertsön:

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

  • April — 10.2(h)
  • May — 12.9(h)
  • June — 14.4(h)
  • July — 10.8(h)
  • August — 9.3(h)

Months with the longest average daylight duration in Hertsön:

  • May — 19.1(h)
  • June — 22.4(h)
  • July — 20.5(h)
  • August — 16.7(h)

The largest precipitation sum in Hertsön is at

  • January — 73(mm)
  • August — 123(mm)
  • September — 83(mm)