Best year time to visit Siem

General weather information about Siem

Average annual temperature is 8.8 °C

Absolute maximum temperature: 26.9 °C

Absolute minimum temperature: -12.7 °C

Number of sunny days: 120 days

Number of rainy days: 225 days

Number of snow days: 20 days

Look at detailed online map of Siem

* Weather data for Siem Denmark is based on climate observations for 2026 year

Siem air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)9.59.612.217.021.226.524.324.226.918.011.09.9
Average daytime temperature (°C)5.06.56.410.716.222.118.819.219.711.65.83.8
Average temperature (°C)2.93.42.66.511.417.015.315.715.89.33.62.1
Average night temperature (°C)0.70.5-1.72.26.111.011.512.012.46.71.2-0.1
Absolute minimum temperature (°C)-4.6-3.2-12.7-2.80.15.37.99.58.32.1-8.3-10.5

Siem monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.013.015.017.017.017.016.013.011.09.07.0
Daylight mean duration (h)7.59.511.814.316.517.717.115.112.810.48.16.9
Daylight minimum duration (h)6.08.010.013.015.017.016.014.011.09.07.06.0
Sunshine mean duration (h)2.94.45.39.713.114.111.59.18.64.02.21.4
Precipitation (mm)114511025911311351435816182103
Sunny days91471523213314515
Rainy days2212191589282816262319
Snow days025000000067

Best time to visit Siem:

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

  • April — 9.7(h)
  • May — 13.1(h)
  • June — 14.1(h)
  • July — 11.5(h)
  • August — 9.1(h)

Months with the longest average daylight duration in Siem:

  • May — 16.5(h)
  • June — 17.7(h)
  • July — 17.1(h)

The largest precipitation sum in Siem is at

  • January — 114(mm)
  • July — 135(mm)
  • August — 143(mm)
  • October — 161(mm)