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 54.0°F. The highest and lowest sea temperatures during the month were 54.9°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 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 Killarney

Sunniest months:
April 5 days
May 4 days
March 4 days
Warmest months:
July 64.5 °F
August 64.0 °F
June 62.0 °F
Warmest sea temp:
August 61.2 °F
July 60.7 °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
22:47
Killarney
+45°F
NE 2 mph
Feels like: +45°F
Precip.: 100%
Places in Ireland:
Name
°F
Dublin
+45°F
Killarney
+45°F
Cork
+45°F
Limerick
+41°F
24 Hours Forecast
Killarney
Local time: 22:47
May 18, monday
0000
45°F
NE
2 mph
0300
43°F
N
2 mph
0600
45°F
NW
3 mph
0900
46°F
NW
3 mph
1200
48°F
NW
5 mph
1500
50°F
NW
7 mph
1800
50°F
NW
10 mph
2100
52°F
NW
6 mph
Units of measurement: °C / °F