Portsmouth weather — 10-day forecast
Temperature, rain, wind and feels-like in Portsmouth, hour by hour and over 10 days, with the seasonal normal for context.
Now
Reading from 21:00 · NOAA HRRR model
24 °C
Mainly clear
Feels like 28 °C
Next 12 h
- 2124°
- 2224°
- 2324°
- 0024°
- 0123°
- 0223°
- 0323°
- 0423°
- 0522°
- 0622°10 %
- 06:40Sunrise
- 0722°11 %
- 0823°
- 0925°
↓ 22°07:00↑ 25°09:00
- Humidity
- 90 %
- Dew point
- 22 °C
- Gusts
- 10.6 km/h
- Clouds
- 25 %
- Pressure
- 1,018 hPa ↓
- Storm
- possible
Grid point 1.0 km away · 3.0 km grid · elevation 176 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by Ozone
- Ozone
- 62.4µg/m³
- PM2.5
- 8.7µg/m³
- PM10
- 9.0µg/m³
- Nitrogen dioxide
- 3.1µg/m³
- Sulphur dioxide
- 0.5µg/m³
- Carbon monoxide
- 212.0µg/m³
- Dust (AOD)
- 0.01
Generated using Copernicus Atmosphere Monitoring Service information
Hour by hour
Step-by-step detail: temperature, wind, cloud cover and ultraviolet.
10 days
Each day's extremes and the chance of rain, out to the end of the run.
Rain probability (> 1 mm): 50 ECMWF ensemble members.
Today
Thunderstorm96 %
31°
24°
Sat
Overcast64 %
32°
22°
Sun
Thunderstorm64 %
33°
22°
Mon
Thunderstorm46 %
32°
23°
Tue
Thunderstorm94 %
31°
24°
Wed
Thunderstorm94 %
29°
24°
Thu
Partly cloudy
31°
23°
Fri
Light rain7 mm
28°
24°
Sat
Thunderstorm34 mm
28°
22°
Sun
Thunderstorm7 mm
28°
23°
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 06:39
- Daylight
- 13 h 58
- Sunset
- 20:37
Radiation · 10.8 MJ/m²
Today in Portsmouth the mean temperature will be 27.2 °C — +3.3 °C against the normal for 7 August, measured from 1940 to 2026. (1,290 obs.)
Nearby cities
The climate around Portsmouth