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The climate of Ireland, city by city

This page lists the 152 cities in Ireland for which climate normals are available. Each entry covers temperature, rainfall and how the climate changed between 1940 and 2025, computed from ERA5 reanalysis data.

Average across cities

9.8°C

Annual rainfall

849mm

Spread between cities

1.7°C

Warming

+0.7°C

Departure from normal across the country's largest cities, 1940–2025

Rankings

Across the 152 cities in this country with a measured climate.

The warmest

  1. 1Cobh10.9 °C
  2. 2Passage West10.9 °C
  3. 3Douglas10.8 °C
  4. 4Wexford10.8 °C
  5. 5Carrigaline10.8 °C
  6. 6Kinsale10.8 °C
  7. 7Youghal10.5 °C
  8. 8Dungarvan10.5 °C
  9. 9Waterford10.4 °C
  10. 10Skerries10.4 °C

The coldest

  1. 1Monaghan9.2 °C
  2. 2Letterkenny9.3 °C
  3. 3Killarney9.3 °C
  4. 4Sligo9.4 °C
  5. 5Thurles9.4 °C
  6. 6Fermoy9.4 °C
  7. 7Carrickmacross9.4 °C
  8. 8Dublin9.5 °C
  9. 9Dublin South9.5 °C
  10. 10Tallaght9.5 °C

The wettest

  1. 1Killarney1,186 mm
  2. 2Sligo1,185 mm
  3. 3Westport1,168 mm
  4. 4Letterkenny1,142 mm
  5. 5Tralee1,132 mm
  6. 6Ballina1,122 mm
  7. 7Castlebar1,074 mm
  8. 8Galway1,011 mm
  9. 9Shannon1,005 mm
  10. 10Ennis1,004 mm

Frequently asked questions

What is the hottest city in Ireland?

The hottest city in Ireland is Cobh, with an average annual temperature of 10.9 °C.

What is the coldest city in Ireland?

The coldest city in Ireland is Monaghan, with an average annual temperature of 9.2 °C.

What is the wettest city in Ireland?

The wettest city in Ireland is Killarney, with 1,186 mm of precipitation per year.

Has the climate of Ireland warmed?

Based on its largest cities, Ireland warmed by +0.7 °C between 1940 and 2025.

Cities by region

Connacht9

Leinster108

Munster30

Ulster5