Current sea water temperature:
+68.7°F
| Minimum sea water temperature in July: | 75.0°F |
| Maximum sea water temperature in July: | 64.8°F |
| Average sea water temperature in July: | 70.0°F |
| more information | |
14 days
forecast
forecast
| Old Saybrook |
monthly
weather
weather
| Old Saybrook |
Sea water temperature for the last 10 days:
| July 21 | 68.7°F | July 16 | 69.3°F |
| July 20 | 69.1°F | July 15 | 69.4°F |
| July 19 | 68.9°F | July 14 | 69.6°F |
| July 18 | 69.6°F | July 13 | 69.3°F |
| July 17 | 69.8°F | July 12 | 67.1°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:
2026
2025
2024
The average sea water temperature in July of 2026 was 68.7°F. The highest and lowest sea temperatures during the month were 70.3°F and 66.2°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
July
July
| 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: 09:43
July 21, tuesday
1200
77°F
NW
11 mph
11 mph
1500
75°F
NW
13 mph
13 mph
1800
73°F
NW
12 mph
12 mph
2100
72°F
NE
11 mph
11 mph
July 22, wednesday
0000
68°F
N
7 mph
7 mph
0300
68°F
E
7 mph
7 mph
0600
70°F
NE
9 mph
9 mph
0900
72°F
NE
10 mph
10 mph
