19.09
sat
sat
Day

64°F
W 6 mph
Precip.
4%
4%
Night

61°F
NW 10 mph
Precip.
12%
12%
20.09
sun
sun
Day

64°F
NW 13 mph
Precip.
34%
34%
Night

59°F
S 13 mph
Precip.
73%
73%
21.09
mon
mon
Day

63°F
SW 13 mph
Precip.
15%
15%
Night

57°F
SW 9 mph
Precip.
18%
18%
22.09
tue
tue
Day

59°F
SW 14 mph
Precip.
18%
18%
Night

52°F
SW 17 mph
Precip.
53%
53%
23.09
wed
wed
Day

61°F
SW 19 mph
Precip.
27%
27%
Night

57°F
SW 20 mph
Precip.
20%
20%
24.09
thu
thu
Day

54°F
S 21 mph
Precip.
25%
25%
Night

54°F
S 17 mph
Precip.
22%
22%
25.09
fri
fri
Day

52°F
S 13 mph
Precip.
73%
73%
Night

57°F
S 16 mph
Precip.
21%
21%
26.09
sat
sat
Day

63°F
SW 22 mph
Precip.
2%
2%
Night

55°F
SW 17 mph
Precip.
7%
7%
27.09
sun
sun
Day

63°F
SW 19 mph
Precip.
15%
15%
Night

57°F
SW 19 mph
Precip.
88%
88%
28.09
mon
mon
Day

61°F
SW 17 mph
Precip.
49%
49%
Night

63°F
SW 11 mph
Precip.
34%
34%
29.09
tue
tue
Day

70°F
NE 7 mph
Precip.
31%
31%
Night

64°F
NE 4 mph
Precip.
29%
29%
30.09
wed
wed
Day

70°F
NW 7 mph
Precip.
18%
18%
Night

68°F
NE 6 mph
Precip.
59%
59%
01.10
thu
thu
Day

72°F
E 9 mph
Precip.
5%
5%
Night

63°F
SE 8 mph
Precip.
12%
12%
02.10
fri
fri
Day

63°F
SE 9 mph
Precip.
4%
4%
Night

57°F
SE 11 mph
Precip.
16%
16%
sea water
temperature
temperature
| New Haven |
monthly
weather
weather
| New Haven |
current
weather
weather
| New Haven |
7 days
forecast
forecast
| New Haven |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 72.6°F. The highest and lowest sea temperatures during the month were 74.3°F and 70.9°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 64.4°F. The highest and lowest sea temperatures during the month were 70.3°F and 58.5°F.
Air temperature in New Haven, °F
Precipitation total in New Haven, in.
* Charts above show average data for the last 3 years.
Best time for vacation in New Haven
New Haven on a weather map
Places in USA:
Name
°F
24 Hours Forecast
New Haven
Local time: 05:18
September 19, saturday
0600

57°F
SW
10 mph
10 mph
0900

59°F
SW
11 mph
11 mph
1200

64°F
W
6 mph
6 mph
1500

64°F
NW
7 mph
7 mph
1800

64°F
NW
7 mph
7 mph
2100

61°F
NW
9 mph
9 mph
September 20, sunday
0000

61°F
NW
10 mph
10 mph
0300

61°F
NW
9 mph
9 mph



























