Climate almanac
Sandown
New Hampshire, United States · 42.93°, -71.19°
What is the weather like in Sandown in September?
In September, Sandown is typically 75°F (24°C) during the day and 56°F (13°C) at night. The month brings about 3.0 in (75 mm) of precipitation in total.
- Average high75°F (24°C)
- Average low56°F (13°C)
- Precipitation3.0 in (75 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)