Measurements:
°C
°F
Dublin
42°F
E 11 mph
Feels like: 36°F
Precip: 0%
World Resorts Ireland Dublin Weather

Dublin Sea Water Temperature

Current Sea Water Temperature:
+53.6°F
Maximum Sea Water Temperature in May: 57.6°F
Minimum Sea Water Temperature in May: 46.8°F
Average water temperature in May: 51.9°F

Sea Water Temperature for the Last 10 Days:

May 16 53.6°F May 11 54.2°F
May 15 53.8°F May 10 53.4°F
May 14 54.2°F May 09 53.4°F
May 13 54.0°F May 08 53.2°F
May 12 53.8°F May 07 53.0°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, September and July.

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 Dublin was 62.9°F. The maximum and minimum values were 61.2°F and 64.0°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.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Dublin was 61.1°F. The maximum and minimum values were 59.2°F and 63.2°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 66.4 °F
August 65.9 °F
June 62.9 °F
Warmest sea temperature:
August 60.8 °F
September 59.9 °F
July 59.8 °F
The most cold months:
January 44.2 °F
February 46.1 °F
December 46.3 °F
The most rainy months:
June 6 days
November 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 +40
Dublin +42
Killarney +40
Limerick +40
24 Hours Weather Forecast
Dublin
Local time: 23:39
17 may, sunday
0000 42°F
E
11 mph
0300 42°F
E
11 mph
0600 42°F
E
11 mph
0900 48°F
NE
12 mph
1200 48°F
E
15 mph
1500 52°F
NE
14 mph
1800 50°F
NE
12 mph
2100 44°F
NE
9 mph