Climate almanac
Portsmouth
Rhode Island, United States · 41.60°, -71.25°
What is the weather like in Portsmouth in August?
In August, Portsmouth is typically 75°F (24°C) during the day and 69°F (21°C) at night. The month brings about 3.3 in (84 mm) of precipitation in total.
- Average high75°F (24°C)
- Average low69°F (21°C)
- Precipitation3.3 in (84 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)