19.09
sat
sat
Day
63°F
W 6 mph
Precip.
12%
12%
Night
61°F
NW 11 mph
Precip.
17%
17%
20.09
sun
sun
Day
63°F
NW 10 mph
Precip.
21%
21%
Night
66°F
NW 12 mph
Precip.
88%
88%
21.09
mon
mon
Day
59°F
SW 18 mph
Precip.
29%
29%
Night
57°F
SW 14 mph
Precip.
20%
20%
22.09
tue
tue
Day
55°F
SW 19 mph
Precip.
28%
28%
Night
52°F
SW 19 mph
Precip.
64%
64%
23.09
wed
wed
Day
61°F
SW 24 mph
Precip.
18%
18%
Night
59°F
SW 21 mph
Precip.
22%
22%
24.09
thu
thu
Day
59°F
SW 21 mph
Precip.
36%
36%
Night
55°F
S 19 mph
Precip.
52%
52%
25.09
fri
fri
Day
63°F
SW 14 mph
Precip.
3%
3%
Night
59°F
S 7 mph
Precip.
13%
13%
sea water
temperature
temperature
| Old Saybrook |
monthly
weather
weather
| Old Saybrook |
current
weather
weather
| Old Saybrook |
14 days
forecast
forecast
| Old Saybrook |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 70.7°F. The highest and lowest sea temperatures during the month were 71.6°F and 69.1°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 65.1°F. The highest and lowest sea temperatures during the month were 69.1°F and 60.8°F.
Air temperature in Old Saybrook, °F
Precipitation total in Old Saybrook, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Old Saybrook
Old Saybrook on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Old Saybrook
Local time: 06:58
September 19, saturday
0900
57°F
SW
12 mph
12 mph
1200
63°F
W
6 mph
6 mph
1500
63°F
NW
8 mph
8 mph
1800
63°F
NW
8 mph
8 mph
2100
61°F
NW
8 mph
8 mph
September 20, sunday
0000
61°F
NW
11 mph
11 mph
0300
61°F
NW
9 mph
9 mph
0600
59°F
NW
9 mph
9 mph
