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St Helena weather by month
Check out St Helena weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in St Helena (°C)
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Max temperature (daytime) | 22 |
23 |
23 |
22 |
21 |
19 |
18 |
17 |
18 |
18 |
19 |
20 |
Min temperature (night-time) | 18 |
19 |
19 |
18 |
17 |
16 |
15 |
14 |
15 |
15 |
15 |
16 |
Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Sea temperature | 23 |
24 |
25 |
25 |
24 |
23 |
21 |
21 |
20 |
20 |
21 |
22 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & Daylight in St Helena
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Daily hours of daylight | 13 |
13 |
12 |
12 |
11 |
11 |
11 |
12 |
12 |
12 |
13 |
13 |
UV Index (Maximum) | 11 |
11 |
11 |
11 |
9 |
7 |
8 |
9 |
11 |
11 |
11 |
11 |
Rainfall in St Helena
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of days with some rain | 14 |
14 |
15 |
15 |
14 |
16 |
16 |
15 |
12 |
14 |
13 |
12 |
Average monthly rainfall (mm) | 53 |
68 |
90 |
63 |
71 |
87 |
84 |
68 |
54 |
43 |
30 |
37 |
More about St Helena
St Helena by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for St Helena & Islands
The climate guide for St Helena & Islands (St Helena) 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 St Helena?
St Helena has a hot desert climate.
Metric (°C / mm) | Imperial (°F / inches)
Compare St Helena with the USA
Below the St Helena chart shows average maximum daytime temperature for St Helena, St Helena, Ascension and Tristan da Cunha and the USA (Washington).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
Compare more St Helena weather >>
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