Ireland Dublin Weather in January — Climate Guide
January in Dublin is moderate
January is moderate for Dublin.
January is Dublin's quietest, cheapest, and dimmest month. It averages 8°C/3°C with only about 7.5 hours of daylight — the sun sets around 16:30 and the days feel grey and short.
The weather is cool and damp rather than truly cold — hard frosts happen but snow is uncommon and rarely settles, thanks to the mild, coastal Gulf Stream climate. Expect rain on roughly half the days, usually light showers.
Travel score
Dublin January Weather Stats
Avg High
8°C
Avg Low
3°C
Rainy Days
13
65mm total
Sunshine
1.8h
Daily avg
Humidity
85%
damp
UV Index
1
Low
Wind
18 km/h
Gusts 38
Crowds
Quiet
At attractions
January Sunrise & Sunset
Air Quality
PM2.5
8 μg/m³
PM10
16 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
5°C
Nighttime
0°C
Humidity and wind affect how the actual temperature feels.
Wind
18 km/h
Max gust 38 km/h
Activities Recommended for January
January Travel Pros & Cons
Pros
- Cheapest hotels of the year
- Uncrowded attractions
- Cozy pub season + Tradfest music
- Mild for the latitude — rarely freezing hard
Cons
- Shortest, dimmest days (~7.5h light)
- Cool, damp, and grey
- Frequent showers
- Some reduced winter opening hours
January Events & Festivals
- New Year (Jan 1) — public holiday, quiet city
- Low season — cheapest hotels of the year
- Tradfest approaches (late Jan/early Feb — traditional music festival)
Dublin in January — Full Picture
January is Dublin's quietest, cheapest, and dimmest month. It averages 8°C/3°C with only about 7.5 hours of daylight — the sun sets around 16:30 and the days feel grey and short.
The weather is cool and damp rather than truly cold — hard frosts happen but snow is uncommon and rarely settles, thanks to the mild, coastal Gulf Stream climate. Expect rain on roughly half the days, usually light showers.
The upside is value and calm: hotels are at their cheapest of the year and attractions are uncrowded. This is the best month for indoor Dublin — the Guinness Storehouse, the free National Museum and National Gallery, Trinity and the Book of Kells, Kilmainham Gaol, and long afternoons in cozy, warm pubs with trad music.
Tradfest (late January into early February) fills the city's historic pubs and venues with traditional Irish music — a real highlight of the low season.
Note: pack for damp and dim, not deep freeze. A warm waterproof coat and good shoes matter more than heavy snow gear. Daylight is precious, so start sightseeing early.
What to Wear & What to Pack
Cold, damp, and dim — averages 8°C/3°C, rarely freezing hard but raw and grey, with short days (~7.5h light). A warm waterproof coat, sweater, hat, gloves, and scarf, plus genuinely waterproof shoes. Snow is uncommon and seldom settles.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
12.3°C
5.7°C
11/mo
Summer (Jun·Jul·Aug)
19°C
11.7°C
11/mo
Autumn (Sep·Oct·Nov)
13.7°C
7.7°C
12.3/mo
Winter (Dec·Jan·Feb)
Current8°C
3°C
12.3/mo
Dublin Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 8° | 3° | 13d·65mm | 1.8h | 85% | 1 | Quiet | Low season | |
| 8° | 3° | 11d·50mm | 2.6h | 84% | 1 | Quiet | Low season | |
| 10° | 4° | 11d·55mm | 3.5h | 81% | 2 | Busy | Peak | |
| 12° | 5° | 11d·55mm | 5.2h | 78% | 3 | Moderate | Shoulder | |
| May (Best) | 15° | 8° | 11d·60mm | 6h | 77% | 4 | Busy | Peak |
| June (Best) | 18° | 11° | 11d·65mm | 6h | 76% | 5 | Very busy | Peak |
| July (Best) | 20° | 12° | 11d·55mm | 5.5h | 76% | 5 | Very busy | Peak |
| August (Best) | 19° | 12° | 11d·70mm | 5h | 78% | 4 | Very busy | Peak |
| 17° | 10° | 11d·65mm | 4.2h | 80% | 3 | Busy | Peak | |
| 14° | 8° | 13d·80mm | 3.2h | 83% | 2 | Moderate | Shoulder | |
| 10° | 5° | 13d·75mm | 2h | 85% | 1 | Quiet | Low season | |
| 8° | 3° | 13d·75mm | 1.6h | 86% | 1 | Busy | Peak |
View Other Months
Dublin January Hotel Picks
Frequently Asked Questions
Is January a good time to visit Dublin?
Dublin in January is moderate. Tourist crowds are quiet and flight/hotel prices are low season.
What's the average temperature in Dublin in January?
Dublin January averages a high of 8°C and a low of 3°C.
Does it rain much in Dublin in January?
Dublin January averages 65mm of rainfall over about 13 rainy days.
What should I wear in Dublin in January?
Cold, damp, and dim — averages 8°C/3°C, rarely freezing hard but raw and grey, with short days (~7.5h light). A warm waterproof coat, sweater, hat, gloves, and scarf, plus genuinely waterproof shoes. Snow is uncommon and seldom settles.
What time are sunrise and sunset in Dublin in January?
Dublin January sunrise is 08:40 and sunset is 16:25, with 7h 45min of daylight.
What's the air quality like in Dublin in January?
Dublin January air quality (AQI) averages 28, rated Good. PM2.5 averages 8μg/m³.
What activities are recommended in Dublin in January?
In January, Dublin is great for Guinness Storehouse + Gravity Bar, Free National Museum & National Gallery, Trinity College & the Book of Kells.
Is January peak season in Dublin?
Dublin January crowds are quiet and prices are low season. You can travel relatively comfortably without long queues.
Best Months to Visit Dublin
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.