Dublin Weather in January

January in Dublin typically sees daytime highs of 9°C (48°F) and nighttime lows of 4°C (39°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the winter season.

Rainfall in Dublin in January

Typically around 18 days of rainfall are expected, averaging 71 mm (2.8 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Dublin in January

If you're visiting Dublin in January, expect highs of 9°C (48°F) and overnight lows around 4°C (39°F). January is part of the winter season. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. The city often sees its mildest temperatures during January.

Sunshine in Dublin in January

The month is characterized by fewer sunny days, with roughly 56 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.

Wind Speed in Dublin in January

Average wind conditions reach 6 m/s (12 knots) in January. This creates notably windy weather that is clearly felt and can influence daily activities. Keep in mind this is an average. Some days are less intense, while others can be quite gusty.

Average water temperature in January

At 10°C (50°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Dublin.