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 20:00 · NOAA HRRR model
27 °C
Clear sky
Feels like 29 °C
Next 12 h
- 2027°
- 2126°
- 2225°
- 2325°10 %
- 0024°10 %
- 0124°10 %
- 0224°10 %
- 0323°12 %
- 0422°12 %
- 0522°
- 05:47Sunrise
- 0622°
- 0723°
- 0824°
↑ 27°20:00↓ 22°06:00
- Humidity
- 76 %
- Dew point
- 22 °C
- Gusts
- 24.0 km/h
- Clouds
- 0 %
- Pressure
- 1,017 hPa
- Storm
- possible
Grid point 1.4 km away · 3.0 km grid · elevation 25 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by Ozone
- Ozone
- 128.2µg/m³▲
- PM2.5
- 10.2µg/m³
- PM10
- 12.2µg/m³
- Nitrogen dioxide
- 5.0µg/m³
- Sulphur dioxide
- 1.0µg/m³
- Carbon monoxide
- 222.0µg/m³
- Dust (AOD)
- 0.00
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
Clear sky8 %
33°
25°
Sat
Mainly clear8 %
32°
22°
Sun
Partly cloudy12 %
32°
21°
Mon
Partly cloudy12 %
30°
22°
Tue
Light showers42 %
28°
22°
Wed
Overcast42 %
25°
22°
Thu
Mainly clear
30°
21°
Fri
Partly cloudy0 mm
30°
22°
Sat
Clear sky
25°
21°
Sun
Partly cloudy
24°
21°
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 05:46
- Daylight
- 14 h 10
- Sunset
- 19:56
Radiation · 10.8 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 29.2 °C — +7.9 °C against the normal for 7 August, measured from 1940 to 2026. (1,290 obs.)
Nearby cities
The climate around Portsmouth