Climate averages 1991–2020

Weather in Ireland.

ClimaNote covers 5 cities in Ireland, starting with Dublin, Cork and Limerick. Open a city for charts and a table of all 12 months.

Across these cities the yearly average high ranges from 12.5°C in Tallaght to 13.3°C in Cork, and yearly rainfall from 853 mm in Tallaght (tied with Dublin) to 1,046 mm in Galway. The hottest city-month is July in Dublin, with an average high of 18.9°C, and the coolest is January in Tallaght, at 7.3°C. By single month, the most rain falls in December in Galway, with 104 mm, and the least in February in Dublin, with 57 mm (tied with February in Tallaght).

July is the warmest month in every city; January is the coolest in every city. November is the wettest month in 2 cities, December in 2 and October in 1; February is the driest in 2 cities, March in 1 and September in 1 (in 1 other city two or more months tie). None of these cities has a month with an average high below 2.0°C, a month with under 1 mm of rain or a month with more than 300 mm of rain.