World Resorts Ireland Dublin Weather

Dublin Sea Temperature in May

Average sea water temperature in May:
+51.8°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 53.8°F. The highest and lowest sea temperatures during the month were 56.7°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 55.0°F 58.6°F
Killarney 54.8°F 58.0°F
Cork 54.6°F 57.0°F
Dublin 53.8°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 61.7 °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:
November 5 days
June 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
01:48
Dublin
+59°F
NE 9 mph
Feels like: +57°F
Precip.: 30%
Places in Ireland:
Name
°F
Dublin
+59°F
Killarney
+46°F
Cork
+50°F
Limerick
+50°F
24 Hours Forecast
Dublin
Local time: 01:48
June 28, sunday
0300
59°F
NE
9 mph
0600
54°F
E
9 mph
0900
57°F
NE
13 mph
1200
63°F
NE
14 mph
1500
64°F
NE
14 mph
1800
64°F
E
13 mph
2100
57°F
E
11 mph
June 29, monday
0000
54°F
NE
11 mph
Units of measurement: °C / °F