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Portsmouth weather by month
Check out Portsmouth weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Portsmouth (°C)
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Max temperature (daytime) | 7 |
7 |
10 |
12 |
16 |
19 |
21 |
21 |
18 |
15 |
11 |
9 |
Min temperature (night-time) | 3 |
3 |
4 |
5 |
8 |
12 |
13 |
14 |
12 |
10 |
6 |
4 |
Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Sea temperature | 8 |
7 |
7 |
9 |
12 |
14 |
17 |
18 |
17 |
15 |
12 |
10 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & Daylight in Portsmouth
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Daily hours of sunshine | ||||||||||||
Daily hours of daylight | 9 |
10 |
12 |
14 |
16 |
16 |
16 |
14 |
13 |
11 |
9 |
8 |
UV Index (Maximum) | 1 |
1 |
3 |
4 |
6 |
6 |
6 |
6 |
4 |
2 |
1 |
1 |
Rainfall in Portsmouth
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of days with some rain | 17 |
12 |
14 |
12 |
12 |
10 |
9 |
10 |
11 |
14 |
15 |
16 |
Average monthly rainfall (mm) | 79 |
53 |
60 |
47 |
48 |
44 |
39 |
53 |
63 |
75 |
80 |
78 |
More about Portsmouth
Portsmouth by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for England
The climate guide for England (Portsmouth) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Portsmouth?
Portsmouth has a temperate climate with warm summers and some rainfall in all months.
Metric (°C / mm) | Imperial (°F / inches)
Tropical storm risk: Portsmouth hurricane season
- Save on cheap tickets for Portsmouth Historic Dockyard
- Check out latest discount offers & explorer deals
- Book online and in advance to save on tickets
More about England
Compare Portsmouth with the USA
Below the Portsmouth chart shows average maximum daytime temperature for Portsmouth, England, UK and the USA (Washington).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
Compare more Portsmouth weather >>
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