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Portstewart weather by month
Check out Portstewart weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Portstewart (°C)
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Max temperature (daytime) | 7 |
7 |
9 |
11 |
13 |
16 |
17 |
17 |
15 |
13 |
9 |
8 |
Min temperature (night-time) | 1 |
1 |
2 |
4 |
6 |
8 |
10 |
10 |
9 |
7 |
4 |
2 |
Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Sea temperature | 9 |
8 |
7 |
8 |
9 |
11 |
13 |
14 |
14 |
13 |
12 |
10 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & Daylight in Portstewart
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Daily hours of sunshine | ||||||||||||
Daily hours of daylight | 8 |
10 |
12 |
14 |
16 |
17 |
17 |
15 |
13 |
10 |
8 |
7 |
UV Index (Maximum) | 0 |
1 |
2 |
3 |
5 |
5 |
6 |
5 |
3 |
2 |
1 |
0 |
Rainfall in Portstewart
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of days with some rain | 22 |
17 |
20 |
16 |
17 |
16 |
18 |
19 |
20 |
22 |
21 |
22 |
Average monthly rainfall (mm) | 118 |
79 |
91 |
65 |
66 |
70 |
77 |
92 |
107 |
124 |
115 |
113 |
More about Portstewart
Portstewart by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Northern Ireland
The climate guide for Northern Ireland (Portstewart) 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 Portstewart?
Portstewart has a temperate climate with warm summers and some rainfall in all months.
Metric (°C / mm) | Imperial (°F / inches)
Tropical storm risk: Portstewart hurricane season
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Compare Portstewart with the USA
Below the Portstewart chart shows average maximum daytime temperature for Portstewart, Coleraine, Northern Ireland and the USA (Washington).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
Compare more Portstewart weather >>
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