World Resorts Ireland Dublin Weather

Dublin sea water temperature

Current sea water temperature:
+52.7°F
Minimum sea water temperature in May: 56.8°F
Maximum sea water temperature in May: 47.1°F
Average sea water temperature in May: 51.7°F

Sea water temperature for the last 10 days:

May 17 52.7°F May 12 53.4°F
May 16 53.2°F May 11 53.8°F
May 15 53.4°F May 10 53.1°F
May 14 53.8°F May 9 53.1°F
May 13 53.6°F May 8 52.9°F

When is the warmest sea in Dublin?

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

Monthly Sea Temperatures in Dublin, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 61.6°F. The highest and lowest sea temperatures during the month were 62.6°F and 60.1°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 59.9°F. The highest and lowest sea temperatures during the month were 61.5°F and 58.5°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 60.0°F. The highest and lowest sea temperatures during the month were 61.9°F and 58.3°F.

Best time for vacation in Dublin

Sunniest months:
April 7 days
September 6 days
March 6 days
Warmest months:
July 64.8 °F
August 64.3 °F
June 61.6 °F
Warmest sea temp:
August 59.7 °F
September 58.9 °F
July 58.8 °F
Coldest months:
January 44.8 °F
February 46.5 °F
December 46.6 °F
Rainiest months:
June 6 days
November 5 days
July 5 days
Windiest months:
December 13.8 mph
February 13.6 mph
January 12.9 mph

Dublin on a weather map

Dublin
+45°F
NE 9 mph
Feels like: +39°F
Precip.: 0%
Places in Ireland:
Name
°F
+45°F
+45°F
+45°F
+45°F
24 Hours Forecast
Dublin
Local time: 22:07
May 18, monday
0000
45°F
NE
5 mph
0300
43°F
NE
6 mph
0600
41°F
E
6 mph
0900
48°F
NE
3 mph
1200
54°F
NW
7 mph
1500
55°F
NW
11 mph
1800
54°F
N
13 mph
2100
48°F
NW
10 mph
Units of measurement: °C / °F