Dún Laoghaire Weather in January
What's the weather like in Dún Laoghaire (Leinster) in January 2024?
The climate in Dún Laoghaire during January can be summarized as cool and reasonably dry.
January is in the winter in Dún Laoghaire and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 8°C (46°F), whilst at night 3°C (37°F) is normal.
| Daytime temperature | 7.9°C 46.1°F |
|---|---|
| Nightly temperature | 2.8°C 37°F |
| Average temperature | 5.3°C 41.5°F |
| Daily sunshine | 2.1 hrs |
| Avg rainfall | 79 mm 3.1 ins |
| Rainy days | 18 days |
| Sea temperature | 8.9°C 48°F |
| Humidity | 87% |
| Windspeed | 24.1kph 15 mph |
On average January is the 4th wettest month of the year in Dún Laoghaire with around 79mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.1 hours of sunshine per day.
January temperatures in Dún Laoghaire
January rainfall
January 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 Dún Laoghaire in January 2024.
Other monthly averages
Best places to visit in January
Dún Laoghaire weather stats
| Hottest month: | July | 18.8°C 65.8°F |
|---|---|---|
| Driest month: | April | 52mm 2ins |
| Sunniest month: | May | 6.8hrs |
| Coldest month: | February | 7.6°C 45.7°F |
| Wettest month: | December | 94mm 3.7ins |
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