Portstewart Weather in December
What's the weather like in Portstewart (N Ireland) in December 2024?
The climate in Portstewart during December can be summarized as cool and damp.
December is in the winter in Portstewart and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 7°C (45°F), whilst at night 2°C (36°F) is normal.
| Daytime temperature | 7.4°C 45.3°F |
|---|---|
| Nightly temperature | 2.1°C 35.8°F |
| Average temperature | 4.8°C 40.6°F |
| Daily sunshine | 1.2 hrs |
| Avg rainfall | 113 mm 4.5 ins |
| Rainy days | 22 days |
| Sea temperature | 10.1°C 50.1°F |
| Humidity | 92% |
| Windspeed | 26.4kph 16 mph |
On average December is the 3rd wettest month of the year in Portstewart with around 113mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.
On the flip side this corresponds to an average of 1.2 hours of sunshine per day.
December temperatures in Portstewart
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Portstewart in December 2024.
Other monthly averages
Best places to visit in December
Portstewart weather stats
| Hottest month: | July | 17.1°C 62.8°F |
|---|---|---|
| Driest month: | April | 66mm 2.6ins |
| Sunniest month: | May | 6.2hrs |
| Coldest month: | January | 6.5°C 43.7°F |
| Wettest month: | October | 123mm 4.8ins |
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