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 07:00 · Meteo-France AROME 1.3 km model
16 °C
Clear sky
Next 12 h
- 0716°
- 0818°
- 0920°
- 1021°
- 1121°
- 1222°
- 1322°
- 1423°
- 1523°
- 1623°
- 1724°
- 1824°
- 1924°
↓ 16°07:00↑ 24°19:00
- Humidity
- 82 %
- Dew point
- 13 °C
- Gusts
- 11.2 km/h
- Clouds
- 12 %
- Pressure
- 1,021 hPa
Grid point 0.1 km away · 1.3 km grid · elevation 3 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by PM2.5
- PM2.5
- 11.6µg/m³
- PM10
- 15.6µg/m³
- Ozone
- 49.8µg/m³
- Nitrogen dioxide
- 16.7µg/m³
- Sulphur dioxide
- 2.7µg/m³
- Carbon monoxide
- 126.0µg/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.
9 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
Partly cloudy
24°
16°
Sun
Clear sky
30°
19°
Mon
Partly cloudy
27°
17°
Tue
Mainly clear
25°
18°
Wed
Partly cloudy
26°
20°
Thu
Mainly clear
30°
20°
Fri
Partly cloudy
26°
19°
Sat
Partly cloudy
24°
16°
Sun
Light drizzle1 mm
23°
19°
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 05:42
- Daylight
- 14 h 56
- Sunset
- 20:38
Radiation · 23.7 MJ/m²
Sea state
Sea state at the marine grid point closest to the city.
Significant height: the mean of the highest third of waves. Individual waves reach about twice it.
Data: ECMWF
Today in Portsmouth the mean temperature will be 20.4 °C — +3.2 °C against the normal for 8 August, measured from 1940 to 2026. (1,290 obs.)
Nearby cities
The climate around Portsmouth