What January feels like in Dublin
January is mid-winter in Dublin. It is cold outside for most of the day; indoor breaks come as a relief. Little changes after sunset — nights are cold, only slightly below the daytime level. Damp air makes the cold feel rawer than the numbers alone suggest.
Rain in Dublin in January
Dry days are the exception, with rain on about one day in 2. Each rainy day adds about 5.4 mm (0.2 in), a proper wetting rather than a sprinkle. Across the year Dublin averages about 5.8 mm per rainy day, so January is typical.
Daylight and sunshine in January
Mid-month, Dublin gets 8 h 2 min of daylight, from sunrise near 8:33 am to sunset near 4:34 pm. Days are getting longer: 29 min more daylight than in mid-December. About 52% of daylight hours are sunny; in short, sun and cloud share the day.
How January compares to the rest of the year
In Dublin's temperature order, January sits as the coolest month. Compared with December, afternoons are 0.7°C (1.3°F) cooler, with 12 mm less rain. Temperatures barely move from one month to the next here. By February, typical highs are 8.6°C (47.5°F).
Who January suits
- Sightseeing: less ideal — it is cold for long walks.
- Parks & outdoor: less ideal — too cool to sit outside for long.
- Beach: less ideal — the sea air is too cool.
Tips for visiting Dublin in January
Rain Protection
A packable rain jacket saves the day on showery afternoons.
Warm Layers
A proper winter coat, with gloves and a hat for early starts.
Quick questions
How warm is Dublin in January?
Expect around 7.9°C (46.2°F) in the afternoon and 3.4°C (38.1°F) at night, which most visitors would call cold.
Does it rain a lot in Dublin in January?
Yes, fairly — rain falls about one day in 2 and totals about 70 mm, so an umbrella is worth carrying.
What should I wear in Dublin in January?
The numbers point to rain protection and warm layers. There is little need to change for the evening.
Is January or February better for visiting Dublin?
On our 12-month climate ranking, February comes out ahead (#8 of 12 vs #11). February has fewer rainy days.