World Resorts Ireland Killarney Weather

Killarney Sea Temperature in September

Average sea water temperature in September:
+59.2°F
Minimum sea water temperature in September: 64.4°F
Maximum sea water temperature in September: 55.8°F

Daily sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 62.0°F. The highest and lowest sea temperatures during the month were 63.1°F and 60.8°F.

Monthly sea water temperature in Killarney, °F

Which Ireland resorts have warmest sea in September?

Place name September 2026 September 2025
Limerick 62.3°F 59.7°F
Killarney 62.0°F 59.7°F
Cork 61.9°F 60.1°F
Dublin 61.8°F 59.9°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
10:11
Killarney
+54°F
NE 10 mph
Feels like: +50°F
Precip.: 27%
Places in Ireland:
Name
°F
Dublin
+54°F
Killarney
+54°F
Cork
+54°F
Limerick
+52°F
24 Hours Forecast
Killarney
Local time: 10:11
September 18, friday
1200
57°F
NE
9 mph
1500
61°F
NE
12 mph
1800
59°F
NE
11 mph
2100
57°F
NE
9 mph
September 19, saturday
0000
59°F
NE
9 mph
0300
59°F
E
10 mph
0600
55°F
E
9 mph
0900
55°F
E
7 mph
Units of measurement: °C / °F