World Resorts Ireland Dublin Weather

Dublin Sea Temperature in May

Average sea water temperature in May:
+51.7°F
Minimum sea water temperature in May: 56.8°F
Maximum sea water temperature in May: 47.1°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 52.9°F. The highest and lowest sea temperatures during the month were 53.8°F and 51.8°F.

Monthly sea water temperature in Dublin, °F

Which Ireland resorts have warmest sea in May?

Place name May 2026 May 2025
Limerick 54.3°F 58.6°F
Killarney 54.0°F 58.0°F
Cork 53.7°F 57.0°F
Dublin 52.9°F 54.8°F

Best time for vacation in Dublin

Sunniest months:
April 7 days
September 6 days
March 6 days
Warmest months:
July 64.8 °F
August 64.3 °F
June 61.6 °F
Warmest sea temp:
August 59.7 °F
September 58.9 °F
July 58.8 °F
Coldest months:
January 44.8 °F
February 46.5 °F
December 46.6 °F
Rainiest months:
June 6 days
November 5 days
July 5 days
Windiest months:
December 13.8 mph
February 13.6 mph
January 12.9 mph

Dublin on a weather map

Current weather
22:47
Dublin
+45°F
E 4 mph
Feels like: +41°F
Precip.: 100%
Places in Ireland:
Name
°F
Dublin
+45°F
Killarney
+45°F
Cork
+45°F
Limerick
+41°F
24 Hours Forecast
Dublin
Local time: 22:47
May 18, monday
0000
45°F
E
4 mph
0300
43°F
NE
7 mph
0600
41°F
E
6 mph
0900
48°F
NE
4 mph
1200
55°F
NW
6 mph
1500
54°F
N
9 mph
1800
48°F
NW
8 mph
2100
48°F
NW
11 mph
Units of measurement: °C / °F