Best year time to visit South Charlestown

General weather information about South Charlestown

Average annual temperature is 9.8 °C

Absolute maximum temperature: 34.4 °C

Absolute minimum temperature: -28.9 °C

Number of sunny days: 152 days

Number of rainy days: 182 days

Number of snow days: 31 days

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

South Charlestown air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)9.512.512.428.831.634.431.527.631.228.317.415.4
Average daytime temperature (°C)3.64.06.415.420.723.527.324.822.717.67.56.2
Average temperature (°C)-0.3-2.21.29.113.818.022.319.917.612.52.62.0
Average night temperature (°C)-3.9-7.7-3.54.17.213.318.115.713.48.6-1.1-0.9
Absolute minimum temperature (°C)-15.3-28.9-12.2-3.5-0.86.313.09.76.20.5-7.0-7.8

South Charlestown 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)9.410.511.913.414.715.315.013.912.511.09.79.0
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)3.76.36.98.011.59.610.210.28.17.06.84.7
Precipitation (mm)12445104968615022112911810558153
Sunny days712121519961017122013
Rainy days1571115122125211319815
Snow days998000000023

South Charlestown - weather forecast by months

South Charlestown weather in januarySouth Charlestown weather in februarySouth Charlestown weather in marchSouth Charlestown weather in aprilSouth Charlestown weather in maySouth Charlestown weather in juneSouth Charlestown weather in julySouth Charlestown weather in augustSouth Charlestown weather in septemberSouth Charlestown weather in octoberSouth Charlestown weather in novemberSouth Charlestown weather in december

Best time to visit South Charlestown:

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

  • May — 11.5(h)
  • July — 10.2(h)
  • August — 10.2(h)

Months with the longest average daylight duration in South Charlestown:

  • June — 15.3(h)

The largest precipitation sum in South Charlestown is at

  • June — 150(mm)
  • July — 221(mm)
  • December — 153(mm)

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    Weather forecast in the closest towns to South Charlestown

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    Frequently asked questions

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