Ireland temperatures in January

In Ireland in January the average maximum daytime temperatures are low and range from 6°C (43°F) in Laragh to 9°C (49°F) in Baltimore. Nighttime temperatures generally drop to 7°C (44°F) in Baltimore and 2°C (35°F) in Laragh. January is a winter month in Ireland. On average, it is one of the coldest months of the year.

What is the temperature of the different cities in Ireland in January?

Find the average daytime temperatures in January for the most popular destinations in Ireland on the map below. Click on a destination dot for more detailed information.

Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30ºC (86ºF). Warm: 22ºC (72ºF) to 30ºC (86ºF). Pleasant: 18ºC (64ºF) to 22ºC (72ºF) Moderate: 12ºC (54ºF) to 18ºC (64ºF). Cold: 2ºC (36ºF) to 12ºC (54ºF). Very cold: lower than 2ºC (36ºF)

  • What is the warmest city in January in Ireland?
  • Baltimore tops the warmest city list in our database with average maximum daytime temperatures around 9°C (49°F) and a minimum nighttime temperature of around 7°C (44°F).

  • What is the coldest city in January in Ireland?
  • The coldest city in January in Ireland is Laragh when we check our database. The maximum daytime temperatures are around 6°C (43°F) and minimum nighttime temperatures fall around 2°C (35°F).

  • How much sun does Ireland get in January?
  • January is generally a dark month with an average of 56 hours of sunshine in Dublin during the whole month.

  • How warm is the water in January?
  • The water temperature averages approximately 10°C (50°F) in Belmullet this month, so not the best month to swim.

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