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 03:00 · NOAA HRRR model
12 °C
Clear sky
Feels like 9 °C
Next 12 h
- 0312°
- 0411°
- 0512°
- 0612°
- 0711°
- 07:17Sunrise
- 0813°
- 0914°
- 1015°
- 1116°
- 1216°
- 1316°
- 1416°
- 1516°
↓ 11°04:00↑ 16°15:00
- Humidity
- 84 %
- Dew point
- 9 °C
- Gusts
- 38.6 km/h
- Clouds
- 7 %
- Pressure
- 1,029 hPa ↓
Grid point 0.6 km away · 3.0 km grid · elevation 4 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by Ozone
- Ozone
- 65.4µg/m³
- PM2.5
- 5.7µg/m³
- PM10
- 9.0µg/m³
- Nitrogen dioxide
- 1.7µg/m³
- Sulphur dioxide
- 0.7µg/m³
- Carbon monoxide
- 138.0µg/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.
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
Overcast
16°
11°
Tue
Clear sky
20°
14°
Wed
Clear sky
18°
15°
Thu
Clear sky
18°
13°
Fri
Mainly clear
16°
13°
Sat
Mainly clear
16°
12°
Sun
Partly cloudy
16°
13°
Mon
Partly cloudy
19°
13°
Tue
Clear sky
21°
10°
Gusts · Mon 54.6 km/h · Tue 58.1 km/h · Wed 55.1 km/h
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 07:17
- Daylight
- 11 h 07
- Sunset
- 18:24
Radiation · 6.7 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 14.0 °C — -1.9 °C against the normal for 19 October, measured from 1940 to 2026. (1,290 obs.)
Nearby cities
The climate around Portsmouth