United States · 1991–2020 normal
Portsmouth in
September.
Typical September weather in Portsmouth: 24.7°C by day, 14.2°C at night, 102 mm of rain over 7.1 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high24.7°C
Typical low14.2°C
Rain102 mm
Wet days7.1
Comfort score 83 this month, the highest of the year. Daylight is calculated as 12 h 25 from latitude 41.60°. Open-water sea temperature is 19.2°C (27 km from the place centre).
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5224082
- NOAA station
- USC00377581 · TIVERTON
- Station distance
- 4.4 km from the place centre
- Coverage
- Good coverage · 21 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.