Dundalk Weather in January

The climate in Dundalk during January can be summarized as cool and reasonably dry.

January is in the winter in Dundalk and is typically the coldest month of the year. Daytime maximum temperatures average around a cold 5°C (41°F), whilst at night -3°C (26°F) is normal.

On average January is the 2nd driest month of the year in Dundalk with around 77mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.5 hours of sunshine per day.

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 Dundalk in January 2024.