Best year time to visit Block Island

General weather information about Block Island

Average annual temperature is 12.2 °C

Absolute maximum temperature: 26.0 °C

Absolute minimum temperature: -16.6 °C

Number of sunny days: 198 days

Number of rainy days: 163 days

Number of snow days: 4 days

Look at detailed online map of Block Island

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

Block Island air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.110.89.613.017.020.526.024.124.919.417.315.4
Average daytime temperature (°C)7.76.37.010.214.017.523.222.520.917.111.79.5
Average temperature (°C)5.43.74.88.812.416.121.921.219.515.49.07.4
Average night temperature (°C)3.81.23.27.611.215.120.720.118.314.27.05.8
Absolute minimum temperature (°C)-0.8-16.6-0.93.27.810.317.018.414.18.20.2-1.5

Block Island monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.610.611.913.314.515.114.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.06.47.48.612.211.111.510.57.78.17.25.9
Precipitation (mm)2016485765880981302034437142
Sunny days111317192419171514132115
Rainy days2012141171114161618816
Snow days030000000010

Block Island - weather forecast by months

Block Island weather in januaryBlock Island weather in februaryBlock Island weather in marchBlock Island weather in aprilBlock Island weather in mayBlock Island weather in juneBlock Island weather in julyBlock Island weather in augustBlock Island weather in septemberBlock Island weather in octoberBlock Island weather in novemberBlock Island weather in december

Best time to visit Block Island:

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

  • May — 12.2(h)
  • June — 11.1(h)
  • July — 11.5(h)

The largest precipitation sum in Block Island is at

  • January — 201(mm)
  • August — 130(mm)
  • September — 203(mm)
  • December — 142(mm)

    • Weather forecast in the closest to Block Island admin centers

    Weather forecast in the closest towns to Block Island

    Explore Block Island

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    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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