17.09
thu
thu
Day

75°F
N 12 mph
Precip.
4%
4%
Night

73°F
NE 16 mph
Precip.
15%
15%
18.09
fri
fri
Day

77°F
SW 6 mph
Precip.
22%
22%
Night

70°F
S 7 mph
Precip.
21%
21%
19.09
sat
sat
Day

72°F
W 15 mph
Precip.
13%
13%
Night

70°F
NW 14 mph
Precip.
12%
12%
20.09
sun
sun
Day

75°F
N 16 mph
Precip.
9%
9%
Night

72°F
E 11 mph
Precip.
72%
72%
21.09
mon
mon
Day

64°F
SW 21 mph
Precip.
37%
37%
Night

70°F
W 18 mph
Precip.
38%
38%
22.09
tue
tue
Day

72°F
W 18 mph
Precip.
51%
51%
Night

73°F
N 6 mph
Precip.
62%
62%
23.09
wed
wed
Day

77°F
NE 2 mph
Precip.
20%
20%
Night

66°F
S 8 mph
Precip.
32%
32%
sea water
temperature
temperature
| Sea Isle City |
monthly
weather
weather
| Sea Isle City |
current
weather
weather
| Sea Isle City |
14 days
forecast
forecast
| Sea Isle City |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 76.7°F. The highest and lowest sea temperatures during the month were 78.1°F and 73.9°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 65.9°F. The highest and lowest sea temperatures during the month were 71.4°F and 59.4°F.
Air temperature in Sea Isle City, °F
Precipitation total in Sea Isle City, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Sea Isle City
Sea Isle City on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Sea Isle City
Local time: 04:30
September 17, thursday
0600

70°F
NE
7 mph
7 mph
0900

73°F
NE
9 mph
9 mph
1200

75°F
N
12 mph
12 mph
1500

75°F
N
13 mph
13 mph
1800

75°F
N
16 mph
16 mph
2100

73°F
N
16 mph
16 mph
September 18, friday
0000

73°F
NE
16 mph
16 mph
0300

73°F
NE
14 mph
14 mph



























