World Resorts Ireland Dublin Weather

Dublin Sea Temperature in September

Average sea water temperature in September:
+59.1°F
Minimum sea water temperature in September: 62.4°F
Maximum sea water temperature in September: 55.9°F

Daily sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 61.4°F. The highest and lowest sea temperatures during the month were 62.4°F and 59.9°F.

Monthly sea water temperature in Dublin, °F

Which Ireland resorts have warmest sea in September?

Place name September 2026 September 2025
Limerick 61.7°F 59.7°F
Killarney 61.7°F 59.7°F
Dublin 61.4°F 59.9°F
Cork 61.4°F 60.1°F

Best time for vacation in Dublin

Sunniest months:
April 7 days
March 6 days
January 5 days
Warmest months:
July 65.0 °F
August 64.4 °F
June 61.7 °F
Warmest sea temp:
August 59.9 °F
September 59.1 °F
July 59.0 °F
Coldest months:
January 44.8 °F
February 46.5 °F
December 46.6 °F
Rainiest months:
November 5 days
June 5 days
July 5 days
Windiest months:
December 13.8 mph
February 13.6 mph
January 12.9 mph

Dublin on a weather map

Current weather
05:57
Dublin
+52°F
N 12 mph
Feels like: +46°F
Precip.: 22%
Places in Ireland:
Name
°F
Dublin
+52°F
Killarney
+57°F
Cork
+55°F
Limerick
+55°F
24 Hours Forecast
Dublin
Local time: 05:57
October 30, friday
0600
52°F
N
12 mph
0900
55°F
N
14 mph
1200
59°F
N
11 mph
1500
57°F
N
9 mph
1800
52°F
N
6 mph
2100
50°F
N
6 mph
October 31, saturday
0000
50°F
N
6 mph
0300
48°F
N
4 mph
Units of measurement: °C / °F