The climate of Dún Laoghaire in January is humid. An average of 108 mm precipitation is recorded over 18 days. The situation is drier than the previous month: in December, the average recorded is 114 mm over 19 days.
Temperatures are cold in Dún Laoghaire in January: expect warm clothing. The average maximum temperature reaches 8°C, while the minimum falls to about 5°C. The month's average temperature is 6°C. These normals should be compared with the records recorded in Dún Laoghaire in January: 14°C as a maximum in 2020 and -1°C as a minimum in 2011.
In January, the days last on average 08:06 in Dún Laoghaire. The sun rises around 08:31 and sets around 16:37.
With very unfavorable weather, the month of January is generally not recommended for traveling to Dún Laoghaire in Ireland.
In January, the most favorable activities in Dún Laoghaire are: Cultural visits and heritage and Gastronomy.
By contrast, these activities are not recommended or are ill-suited in Dún Laoghaire in January: Beach and swimming, Hiking and trekking, Animal observation, Nature and landscapes, Nightlife and Boat trip and cruise.