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Climate almanac

Charlestown

Rhode Island, United States · 41.38°, -71.64°

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What is the weather like in Charlestown in September?

In September, Charlestown is typically 73°F (23°C) during the day and 61°F (16°C) at night. The month brings about 3.8 in (98 mm) of precipitation in total.

  • Average high73°F (23°C)
  • Average low61°F (16°C)
  • Precipitation3.8 in (98 mm)
  • Clear or mostly clear days10
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)