Measurements:
°C
°F
Cork
40°F
E 7 mph
Feels like: 36°F
Precip: 0%
World Resorts Ireland Cork Weather

Cork Sea Water Temperature

Current Sea Water Temperature:
+54.2°F
Maximum Sea Water Temperature in May: 60.4°F
Minimum Sea Water Temperature in May: 48.8°F
Average water temperature in May: 53.5°F

Sea Water Temperature for the Last 10 Days:

May 16 54.2°F May 11 54.8°F
May 15 54.2°F May 10 53.8°F
May 14 54.8°F May 09 53.6°F
May 13 54.8°F May 08 54.0°F
May 12 54.4°F May 07 54.0°F

When is the Warmest Sea for Cork?

According to our data for the last three years for Cork the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Cork was 63.9°F. The maximum and minimum values were 62.0°F and 65.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Cork was 61.8°F. The maximum and minimum values were 59.4°F and 63.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Cork was 61.3°F. The maximum and minimum values were 59.2°F and 64.2°F respectively.

Best Time to Visit Cork
The most sunny months:
August 6 days
April 6 days
March 5 days
The most warm months:
July 67.4 °F
August 66.8 °F
June 63.9 °F
Warmest sea temperature:
August 61.6 °F
July 61.5 °F
September 60.7 °F
The most cold months:
January 46.1 °F
February 47.8 °F
December 48.0 °F
The most rainy months:
December 7 days
February 6 days
October 6 days
The most windy months:
February 14 mph
December 14 mph
January 12 mph

Cork on the Weather Map

Ireland Resorts:
NAME
Cork +40
Dublin +42
Killarney +40
Limerick +40
24 Hours Weather Forecast
Cork
Local time: 00:23
17 may, sunday
0300 42°F
E
6 mph
0600 42°F
NE
6 mph
0900 46°F
E
12 mph
1200 48°F
E
13 mph
1500 48°F
E
14 mph
1800 46°F
E
11 mph
2100 44°F
E
11 mph
18 may, monday
0000 44°F
E
9 mph