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Climate almanac

Portsmouth

Rhode Island, United States · 41.60°, -71.25°

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What is the weather like in Portsmouth in May?

In May, Portsmouth is typically 59°F (15°C) during the day and 52°F (11°C) at night. The month brings about 4.7 in (119 mm) of precipitation in total.

  • Average high59°F (15°C)
  • Average low52°F (11°C)
  • Precipitation4.7 in (119 mm)
  • Clear or mostly clear days8
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)