January in Dublin averages highs of 8 °C (47 °F) and lows of 4 °C (38 °F), with about 10 rainy days and 8 h 02 min of daylight.
January weather in Dublin at a glance
average high to low each dot ≈ 3 rainy days
Is January a good time to visit Dublin?
Tough month: cold and some rain. January is usually low season in Dublin: rooms are typically easier to find and cheaper.
Our rule: a month scores 2 points for comfortable average highs of 18–28 °C (1 point for 14–18 or 28–32 °C) and 2 points for 5 or fewer rainy days (1 point for 6–10). Average highs above 35 °C or below 8 °C make it a tough month whatever the rain. A rainy day here means 2 mm of rain or more. 4 points = great, 3 = good, 2 = mixed, 0–1 = tough.
Holidays and events in January 2026
- Thu 1 Jan: New Year's Day (Lá Caille) public holiday
Banks and many shops close on public holidays, and museums may change their hours, so check before you go.
Things to do in Dublin in January
January's weather suits a mix of outdoor sights and museums, so the open-air ones come first.
- St Stephen's Green and Grafton Street outdoors
- Howth cliff walk — 30 min by DART outdoors
- Trinity College and the Book of Kells — timed tickets indoors
- Guinness Storehouse indoors
- Kilmainham Gaol — book well ahead indoors
- Traditional music pubs indoors
Where to stay: Around Temple Bar and St Stephen's Green to walk everywhere; Smithfield or Portobello for better value.
What to pack for Dublin in January
- A warm jacket and layers; evenings drop to around 4 °C (38 °F).
- An umbrella or a light waterproof: about 10 days this month see real rain.
- Comfortable walking shoes.
What a day in Dublin costs
| Budget traveller | Mid-range | |
|---|---|---|
| Typical total per person, per day | €70–160 | €200–400 |
Excluding flights. January is usually low season in Dublin: rooms are typically easier to find and cheaper.
January in nearby cities
| City | High / low | Rainy days | Verdict |
|---|---|---|---|
| Edinburgh | 6° / 2° | 11 | Tough month |
| London | 8° / 2° | 9 | Tough month |
| Amsterdam | 7° / 2° | 11 | Tough month |
Want the whole trip planned? Join the Journey waitlist: tell it where, when and your budget, and it plans every day hour by hour.
FAQ
Is January a good time to visit Dublin?
By the numbers, January is a tough month: cold and some rain, with average highs of 8 °C (47 °F) and about 10 rainy days. January is usually low season in Dublin: rooms are typically easier to find and cheaper. The best months for weather are August.
How warm is Dublin in January?
Average highs are 8 °C (47 °F) and lows 4 °C (38 °F) (2015–2024 averages).
Does it rain a lot in Dublin in January?
Expect about 10 days with 2 mm of rain or more, about 63 mm in total. It is the 4th driest month of the year in Dublin.
Sources: climate averages from Open-Meteo historical weather (ERA5 reanalysis, 2015–2024); sea temperatures from the Open-Meteo marine API (2023–2024); public holidays from Nager.Date. Daylight is calculated for the 15th of the month. Averages are a guide, not a forecast. Costs are typical ranges per person per day, excluding flights.