World Resorts Ireland Killarney Weather

Killarney sea water temperature

Current sea water temperature:
+64.2°F
Minimum sea water temperature in August: 65.7°F
Maximum sea water temperature in August: 57.6°F
Average sea water temperature in August: 61.2°F

Sea water temperature for the last 10 days:

August 8 64.2°F August 3 64.8°F
August 7 63.9°F August 2 64.6°F
August 6 64.2°F August 1 64.6°F
August 5 64.2°F July 31 64.6°F
August 4 63.5°F July 30 65.1°F

When is the warmest sea in Killarney?

Based on the data about daily sea water temperature for the last three years the warmest sea in Killarney was noticed in August, July and September.

Monthly Sea Temperatures in Killarney, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 63.2°F. The highest and lowest sea temperatures during the month were 64.9°F and 61.5°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 64.9°F. The highest and lowest sea temperatures during the month were 68.0°F and 62.4°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 59.7°F. The highest and lowest sea temperatures during the month were 62.2°F and 57.9°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 61.2 °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

Killarney
+61°F
N 5 mph
Feels like: +61°F
Precip.: 23%
Places in Ireland:
Name
°F
+64°F
+61°F
+61°F
+63°F
24 Hours Forecast
Killarney
Local time: 21:27
August 09, sunday
0000
61°F
N
4 mph
0300
61°F
NE
3 mph
0600
57°F
E
3 mph
0900
63°F
E
4 mph
1200
68°F
E
6 mph
1500
68°F
E
7 mph
1800
68°F
E
6 mph
2100
59°F
SE
4 mph
Units of measurement: °C / °F