World Resorts Ireland Killarney Weather

Killarney Sea Temperature in May

Average sea water temperature in May:
+53.5°F
Minimum sea water temperature in May: 60.8°F
Maximum sea water temperature in May: 49.1°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 54.8°F. The highest and lowest sea temperatures during the month were 58.5°F and 53.1°F.

Monthly sea water temperature in Killarney, °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 Killarney

Sunniest months:
April 5 days
May 4 days
March 4 days
Warmest months:
July 64.9 °F
August 64.0 °F
June 62.0 °F
Warmest sea temp:
August 61.4 °F
July 60.9 °F
September 59.0 °F
Coldest months:
January 45.4 °F
December 46.9 °F
February 47.1 °F
Rainiest months:
December 9 days
January 9 days
November 8 days
Windiest months:
February 11.6 mph
December 11.1 mph
January 10.1 mph

Killarney on a weather map

Current weather
16:38
Killarney
+66°F
SE 6 mph
Feels like: +66°F
Precip.: 36%
Places in Ireland:
Name
°F
Dublin
+66°F
Killarney
+66°F
Cork
+68°F
Limerick
+68°F
24 Hours Forecast
Killarney
Local time: 16:38
August 28, friday
1800
66°F
SE
6 mph
2100
59°F
E
3 mph
August 29, saturday
0000
55°F
NW
3 mph
0300
55°F
SW
4 mph
0600
55°F
S
6 mph
0900
55°F
SE
5 mph
1200
59°F
SE
6 mph
1500
61°F
SE
7 mph
Units of measurement: °C / °F