Best year time to visit Island

General weather information about Island

Average annual temperature is 10.7 °C

Absolute maximum temperature: 33.3 °C

Absolute minimum temperature: -25.5 °C

Number of sunny days: 164 days

Number of rainy days: 185 days

Number of snow days: 16 days

Look at detailed online map of Island

* Weather data for Island United States is based on climate observations for 2026 year

Island air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)13.314.315.032.329.332.731.528.633.327.617.615.4
Average daytime temperature (°C)5.35.27.416.220.723.427.925.122.318.08.57.5
Average temperature (°C)1.70.22.510.014.417.923.020.317.913.33.83.1
Average night temperature (°C)-1.3-4.4-1.64.98.713.619.116.514.79.70.40.0
Absolute minimum temperature (°C)-7.0-25.5-6.6-2.52.66.713.613.58.41.9-5.1-6.6

Island monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.510.611.913.414.615.214.913.912.511.19.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)4.26.47.58.511.59.710.59.67.47.87.05.4
Precipitation (mm)17548139807610819312623110141189
Sunny days912141520961012182217
Rainy days17101415112125211813713
Snow days563000000011

Best time to visit Island:

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

  • May — 11.5(h)
  • July — 10.5(h)

The largest precipitation sum in Island is at

  • January — 175(mm)
  • July — 193(mm)
  • September — 231(mm)
  • December — 189(mm)
  • Frequently asked questions

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