18.09
fri
fri
Day
54°F
NE 12 mph
Precip.
23%
23%
Night
59°F
NE 14 mph
Precip.
31%
31%
19.09
sat
sat
Day
59°F
E 15 mph
Precip.
19%
19%
Night
50°F
E 11 mph
Precip.
12%
12%
20.09
sun
sun
Day
57°F
E 6 mph
Precip.
9%
9%
Night
55°F
NE 6 mph
Precip.
21%
21%
21.09
mon
mon
Day
70°F
E 5 mph
Precip.
4%
4%
Night
59°F
NE 5 mph
Precip.
14%
14%
22.09
tue
tue
Day
66°F
W 2 mph
Precip.
16%
16%
Night
57°F
N 2 mph
Precip.
29%
29%
23.09
wed
wed
Day
64°F
NE 7 mph
Precip.
14%
14%
Night
52°F
W 4 mph
Precip.
32%
32%
24.09
thu
thu
Day
66°F
N 11 mph
Precip.
18%
18%
Night
57°F
NE 5 mph
Precip.
14%
14%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 61.8°F. The highest and lowest sea temperatures during the month were 62.4°F and 61.2°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 56.8°F. The highest and lowest sea temperatures during the month were 58.5°F and 54.3°F.
Air temperature in Dublin, °F
Precipitation total in Dublin, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Dublin
Dublin on a weather map
24 Hours Forecast
Dublin
Local time: 10:10
September 18, friday
1200
54°F
NE
12 mph
12 mph
1500
57°F
NE
19 mph
19 mph
1800
59°F
NE
14 mph
14 mph
2100
59°F
NE
14 mph
14 mph
September 19, saturday
0000
59°F
NE
14 mph
14 mph
0300
61°F
NE
15 mph
15 mph
0600
57°F
E
16 mph
16 mph
0900
55°F
E
14 mph
14 mph
