Best year time to visit Summer Harbor

General weather information about Summer Harbor

Average annual temperature is 8.7 °C

Absolute maximum temperature: 30.8 °C

Absolute minimum temperature: -27.1 °C

Number of sunny days: 165 days

Number of rainy days: 171 days

Number of snow days: 29 days

Look at detailed online map of Summer Harbor

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

Summer Harbor air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)9.611.110.820.224.825.228.827.530.826.213.113.8
Average daytime temperature (°C)3.01.04.210.116.818.224.822.921.816.26.74.5
Average temperature (°C)-0.1-3.11.16.311.814.420.318.917.112.53.21.3
Average night temperature (°C)-3.0-7.3-1.63.28.011.817.115.613.79.5-0.2-1.7
Absolute minimum temperature (°C)-9.1-27.1-6.4-2.93.86.614.512.27.91.3-6.5-10.8

Summer Harbor 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)9.310.511.913.514.815.515.114.012.511.09.68.9
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)4.16.37.08.411.46.68.18.98.27.06.74.2
Precipitation (mm)21740966610517217515415414162151
Sunny days712121621891018132217
Rainy days1641113102222211218814
Snow days8128100000000

Best time to visit Summer Harbor:

The best time to visit Summer Harbor during the most sunny months:

  • May — 11.4(h)

Months with the longest average daylight duration in Summer Harbor:

  • June — 15.5(h)

The largest precipitation sum in Summer Harbor is at

  • January — 217(mm)
  • June — 172(mm)
  • July — 175(mm)
  • Frequently asked questions

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