Measurements:
°C
°F
Old Saybrook
60°F
SE 14 mph
Feels like: 56°F
Precip: 7%
World Resorts USA Old Saybrook Weather

Old Saybrook Sea Water Temperature

Current Sea Water Temperature:
+62.2°F
Maximum Sea Water Temperature in October: 71.6°F
Minimum Sea Water Temperature in October: 61.4°F
Average water temperature in October: 65.9°F

Sea Water Temperature for the Last 10 Days:

October 26 62.2°F October 21 63.6°F
October 25 62.0°F October 20 63.6°F
October 24 62.0°F October 19 64.6°F
October 23 62.6°F October 18 64.6°F
October 22 63.6°F October 17 65.6°F

When is the Warmest Sea for Old Saybrook?

According to our data for the last three years for Old Saybrook the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Old Saybrook was 74.9°F. The maximum and minimum values were 73.2°F and 78.0°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Old Saybrook was 71.3°F. The maximum and minimum values were 68.0°F and 73.6°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Old Saybrook was 72.2°F. The maximum and minimum values were 68.4°F and 74.0°F respectively.

Best Time to Visit Old Saybrook
The most sunny months:
November 17 days
October 14 days
December 13 days
The most warm months:
July 84.0 °F
August 82.1 °F
June 77.2 °F
Warmest sea temperature:
August 74.2 °F
July 72.3 °F
September 71.9 °F
The most cold months:
January 34.5 °F
February 35.9 °F
December 40.0 °F
The most rainy months:
July 3 days
October 3 days
April 3 days
The most windy months:
January 11 mph
December 10 mph
November 10 mph

Old Saybrook on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +58
Hawaii +80
Houston +76
Las Vegas +64
Los Angeles +74
Maui +72
Miami +82
New York +62
Panama City Beach +66
San Diego +74
San Francisco +60
Santa Monica +72
Tampa +74
Washington +56
24 Hours Weather Forecast
Old Saybrook
Local time: 22:44
27 oct, tuesday
0000 60°F
SE
14 mph
0300 54°F
S
15 mph
0600 50°F
S
12 mph
0900 48°F
S
12 mph
1200 54°F
SW
9 mph
1500 58°F
SW
2 mph
1800 54°F
NW
2 mph
2100 52°F
NW
1 mph