Best year time to visit Charlestown Beach

General weather information about Charlestown Beach

Average annual temperature is 12.0 °C

Absolute maximum temperature: 30.0 °C

Absolute minimum temperature: -21.2 °C

Number of sunny days: 164 days

Number of rainy days: 197 days

Number of snow days: 4 days

Look at detailed online map of Charlestown Beach

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

Charlestown Beach air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)14.217.912.125.324.924.129.728.130.024.816.915.6
Average daytime temperature (°C)7.56.68.113.918.321.226.124.622.218.410.68.6
Average temperature (°C)4.22.74.510.214.017.522.921.419.014.56.65.6
Average night temperature (°C)1.3-1.30.96.810.014.320.018.316.311.42.92.6
Absolute minimum temperature (°C)-3.7-21.2-3.2-0.14.58.115.815.010.56.4-3.6-5.6

Charlestown Beach 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)9.610.611.913.314.515.114.813.812.511.19.99.2
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.26.47.48.712.010.711.010.47.58.27.35.6
Precipitation (mm)1845812110268871461512586236179
Sunny days811161521811912142217
Rainy days23141515102220221817714
Snow days030000000010

Charlestown Beach - weather forecast by months

Charlestown Beach weather in januaryCharlestown Beach weather in februaryCharlestown Beach weather in marchCharlestown Beach weather in aprilCharlestown Beach weather in mayCharlestown Beach weather in juneCharlestown Beach weather in julyCharlestown Beach weather in augustCharlestown Beach weather in septemberCharlestown Beach weather in octoberCharlestown Beach weather in novemberCharlestown Beach weather in december

Best time to visit Charlestown Beach:

The best time to visit Charlestown Beach during the most sunny months:

  • May — 12.0(h)
  • June — 10.7(h)
  • July — 11.0(h)
  • August — 10.4(h)

The largest precipitation sum in Charlestown Beach is at

  • January — 184(mm)
  • September — 258(mm)
  • December — 179(mm)

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    Frequently asked questions

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