Current sea water temperature:
+44.4°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: | 48.2°F |
| more information | |
14 days
forecast
forecast
| Old Saybrook |
monthly
weather
weather
| Old Saybrook |
Sea water temperature for the last 10 days:
| December 16 | 44.4°F | December 11 | 46.8°F |
| December 15 | 44.8°F | December 10 | 46.9°F |
| December 14 | 45.5°F | December 9 | 47.8°F |
| December 13 | 46.0°F | December 8 | 48.4°F |
| December 12 | 46.8°F | December 7 | 48.4°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
December
December
| 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: 09:05
December 16, tuesday
1200
30°F
E
2 mph
2 mph
1500
32°F
NE
7 mph
7 mph
1800
30°F
NE
8 mph
8 mph
2100
30°F
NE
13 mph
13 mph
December 17, wednesday
0000
32°F
NE
14 mph
14 mph
0300
32°F
NE
17 mph
17 mph
0600
34°F
NE
16 mph
16 mph
0900
37°F
NE
15 mph
15 mph
