Measurements:
°C
°F
Dublin
52°F
E 11 mph
Feels like: 48°F
Precip: 22%
World Resorts Ireland Dublin Weather

Dublin Sea Water Temperature

Current Sea Water Temperature:
+63.0°F
Maximum Sea Water Temperature in September: 63.8°F
Minimum Sea Water Temperature in September: 56.6°F
Average water temperature in September: 60.0°F

Sea Water Temperature for the Last 10 Days:

September 08 63.0°F September 03 63.0°F
September 07 63.6°F September 02 63.4°F
September 06 63.4°F September 01 63.8°F
September 05 63.4°F August 31 64.4°F
September 04 62.8°F August 30 64.2°F

When is the Warmest Sea for Dublin?

According to our data for the last three years for Dublin 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: 2026 2025 2024

The average sea surface temperature in August 2026 for Dublin was 64.5°F. The maximum and minimum values were 63.2°F and 66.4°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Dublin was 63.6°F. The maximum and minimum values were 60.0°F and 66.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Dublin was 61.0°F. The maximum and minimum values were 59.4°F and 62.8°F respectively.

Best Time to Visit Dublin
The most sunny months:
April 7 days
September 6 days
March 6 days
The most warm months:
July 66.6 °F
August 66.0 °F
June 63.0 °F
Warmest sea temperature:
August 61.0 °F
July 60.0 °F
September 59.9 °F
The most cold months:
January 44.2 °F
February 46.1 °F
December 46.3 °F
The most rainy months:
November 5 days
June 5 days
July 5 days
The most windy months:
December 14 mph
February 13 mph
January 12 mph

Dublin on the Weather Map

Ireland Resorts:
NAME
Cork +52
Dublin +52
Killarney +50
Limerick +52
24 Hours Weather Forecast
Dublin
Local time: 22:14
09 sep, wednesday
0000 48°F
E
9 mph
0300 52°F
E
9 mph
0600 46°F
E
7 mph
0900 50°F
E
6 mph
1200 58°F
E
8 mph
1500 62°F
E
6 mph
1800 58°F
NE
4 mph
2100 54°F
N
6 mph