Measurements:
°C
°F
Cork
46°F
NW 26 mph
Feels like: 38°F
Precip: 100%
World Resorts Ireland Cork Weather

Cork Sea Water Temperature

Current Sea Water Temperature:
+51.8°F
Maximum Sea Water Temperature in December: 53.4°F
Minimum Sea Water Temperature in December: 47.8°F
Average water temperature in December: 50.5°F

Sea Water Temperature for the Last 10 Days:

December 05 51.8°F November 30 52.4°F
December 04 51.8°F November 29 52.6°F
December 03 52.0°F November 28 53.0°F
December 02 52.4°F November 27 53.2°F
December 01 52.4°F November 26 53.4°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 46.3 °F
February 47.8 °F
December 48.2 °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 +46
Dublin +44
Killarney +48
Limerick +44
24 Hours Weather Forecast
Cork
Local time: 08:33
05 dec, friday
0900 46°F
NW
26 mph
1200 52°F
NE
17 mph
1500 50°F
NE
20 mph
1800 48°F
NE
22 mph
2100 48°F
NE
16 mph
06 dec, saturday
0000 46°F
NE
15 mph
0300 48°F
E
19 mph
0600 50°F
E
21 mph