19.09
sat
sat
Day
63°F
W 6 mph
Precip.
6%
6%
Night
61°F
NW 9 mph
Precip.
16%
16%
20.09
sun
sun
Day
61°F
NW 9 mph
Precip.
31%
31%
Night
66°F
NW 7 mph
Precip.
90%
90%
21.09
mon
mon
Day
61°F
SW 15 mph
Precip.
29%
29%
Night
57°F
SW 11 mph
Precip.
19%
19%
22.09
tue
tue
Day
54°F
SW 15 mph
Precip.
64%
64%
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 17 mph
Precip.
19%
19%
24.09
thu
thu
Day
57°F
SW 19 mph
Precip.
22%
22%
Night
55°F
S 15 mph
Precip.
29%
29%
25.09
fri
fri
Day
63°F
SW 11 mph
Precip.
3%
3%
Night
59°F
NW 6 mph
Precip.
15%
15%
sea water
temperature
temperature
| New Haven |
monthly
weather
weather
| New Haven |
current
weather
weather
| New Haven |
14 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: 06:10
September 19, saturday
0900
57°F
SW
12 mph
12 mph
1200
63°F
W
6 mph
6 mph
1500
64°F
NW
6 mph
6 mph
1800
63°F
NW
6 mph
6 mph
2100
61°F
NW
8 mph
8 mph
September 20, sunday
0000
61°F
NW
9 mph
9 mph
0300
61°F
NW
7 mph
7 mph
0600
61°F
NW
7 mph
7 mph
