Currently: 3 °C. Passing clouds. (Weather station: Norfolk Naval Air Station, USA). See more current weatherAnnual Weather Averages Near Portsmouth
Averages are for Norfolk Naval Air Station, which is 11 kilometers from Portsmouth.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Portsmouth
High Temp: 32 °C
Low Temp: 2 °C
Mean Temp: 17 °C
Precipitation: 92.7 mm
Humidity: 68%
Dew Point: 10 °C
Wind: 26 km/h
Pressure: 1018 mbar
Visibility: 12 km
一月 Climate & Weather Averages in Portsmouth
High Temp: 10 °C
Low Temp: 2 °C
Mean Temp: 6 °C
Precipitation: 83.0 mm
Humidity: 65%
Dew Point: -1 °C
Wind: 29 km/h
Pressure: 1020 mbar
Visibility: 12 km
二月 Climate & Weather Averages in Portsmouth
High Temp: 12 °C
Low Temp: 2 °C
Mean Temp: 7 °C
Precipitation: 72.3 mm
Humidity: 64%
Dew Point: 0 °C
Wind: 29 km/h
Pressure: 1019 mbar
Visibility: 12 km
三月 Climate & Weather Averages in Portsmouth
High Temp: 15 °C
Low Temp: 6 °C
Mean Temp: 10 °C
Precipitation: 84.9 mm
Humidity: 63%
Dew Point: 3 °C
Wind: 31 km/h
Pressure: 1018 mbar
Visibility: 12 km
四月 Climate & Weather Averages in Portsmouth
High Temp: 21 °C
Low Temp: 11 °C
Mean Temp: 16 °C
Precipitation: 77.9 mm
Humidity: 62%
Dew Point: 8 °C
Wind: 30 km/h
Pressure: 1016 mbar
Visibility: 12 km
五月 Climate & Weather Averages in Portsmouth
High Temp: 25 °C
Low Temp: 16 °C
Mean Temp: 20 °C
Precipitation: 89.6 mm
Humidity: 68%
Dew Point: 14 °C
Wind: 26 km/h
Pressure: 1017 mbar
Visibility: 12 km
六月 Climate & Weather Averages in Portsmouth
High Temp: 29 °C
Low Temp: 21 °C
Mean Temp: 25 °C
Precipitation: 102.2 mm
Humidity: 70%
Dew Point: 19 °C
Wind: 24 km/h
Pressure: 1016 mbar
Visibility: 12 km
七月 Climate & Weather Averages in Portsmouth
High Temp: 32 °C
Low Temp: 23 °C
Mean Temp: 27 °C
Precipitation: 123.3 mm
Humidity: 71%
Dew Point: 21 °C
Wind: 22 km/h
Pressure: 1016 mbar
Visibility: 12 km
八月 Climate & Weather Averages in Portsmouth
High Temp: 30 °C
Low Temp: 22 °C
Mean Temp: 26 °C
Precipitation: 127.1 mm
Humidity: 73%
Dew Point: 21 °C
Wind: 21 km/h
Pressure: 1017 mbar
Visibility: 12 km
九月 Climate & Weather Averages in Portsmouth
High Temp: 27 °C
Low Temp: 20 °C
Mean Temp: 24 °C
Precipitation: 118.2 mm
Humidity: 73%
Dew Point: 18 °C
Wind: 25 km/h
Pressure: 1018 mbar
Visibility: 12 km
十月 Climate & Weather Averages in Portsmouth
High Temp: 22 °C
Low Temp: 14 °C
Mean Temp: 18 °C
Precipitation: 82.8 mm
Humidity: 70%
Dew Point: 12 °C
Wind: 26 km/h
Pressure: 1018 mbar
Visibility: 12 km
十一月 Climate & Weather Averages in Portsmouth
High Temp: 17 °C
Low Temp: 7 °C
Mean Temp: 12 °C
Precipitation: 78.9 mm
Humidity: 67%
Dew Point: 6 °C
Wind: 26 km/h
Pressure: 1020 mbar
Visibility: 12 km
十二月 Climate & Weather Averages in Portsmouth
High Temp: 12 °C
Low Temp: 4 °C
Mean Temp: 8 °C
Precipitation: 72.7 mm
Humidity: 68%
Dew Point: 2 °C
Wind: 27 km/h
Pressure: 1020 mbar
Visibility: 12 km