Current sea water temperature:
+41.9°F
| Minimum sea water temperature in December: | 53.6°F |
| Maximum sea water temperature in December: | 41.4°F |
| Average sea water temperature in December: | 47.9°F |
| more information | |
14 days
forecast
forecast
| Old Saybrook |
monthly
weather
weather
| Old Saybrook |
Sea water temperature for the last 10 days:
| December 28 | 41.9°F | December 23 | 43.0°F |
| December 27 | 42.6°F | December 22 | 42.8°F |
| December 26 | 42.6°F | December 21 | 42.8°F |
| December 25 | 42.6°F | December 20 | 43.5°F |
| December 24 | 43.0°F | December 19 | 43.2°F |
Monthly sea water temperature, °F
When is the warmest sea in Old Saybrook?
Based on the data about daily sea water temperature for the last three years the warmest sea in Old Saybrook was noticed in August, July and September.
Monthly Sea Temperatures in Old Saybrook, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 71.1°F. The highest and lowest sea temperatures during the month were 73.2°F and 69.4°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 70.6°F. The highest and lowest sea temperatures during the month were 73.6°F and 64.8°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 69.2°F. The highest and lowest sea temperatures during the month were 71.2°F and 68.0°F.
current
weather
weather
| Old Saybrook |
weather in
January
January
| Old Saybrook |
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: 18:52
December 28, sunday
2100
34°F
NE
11 mph
11 mph
December 29, monday
0000
36°F
NE
11 mph
11 mph
0300
41°F
N
10 mph
10 mph
0600
43°F
NE
13 mph
13 mph
0900
45°F
NE
14 mph
14 mph
1200
46°F
NE
14 mph
14 mph
1500
46°F
NE
15 mph
15 mph
1800
43°F
E
17 mph
17 mph
