World Resorts USA Old Saybrook Weather

Old Saybrook sea water temperature

Current sea water temperature:
+34.7°F
Minimum sea water temperature in February: 41.9°F
Maximum sea water temperature in February: 34.3°F
Average sea water temperature in February: 39.1°F

Sea water temperature for the last 10 days:

February 5 34.7°F January 31 35.1°F
February 4 34.5°F January 30 35.4°F
February 3 35.1°F January 29 35.6°F
February 2 34.3°F January 28 36.0°F
February 1 34.5°F January 27 36.3°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.

Best time for vacation in Old Saybrook

Sunniest months:
November 17 days
October 14 days
September 14 days
Warmest months:
July 80.1 °F
August 78.5 °F
June 73.4 °F
Warmest sea temp:
August 71.7 °F
July 70.2 °F
September 69.6 °F
Coldest months:
January 36.0 °F
February 37.9 °F
December 41.0 °F
Rainiest months:
October 4 days
July 3 days
April 3 days
Windiest months:
January 10.8 mph
December 10.5 mph
November 10.5 mph

Old Saybrook on a weather map

Old Saybrook
+18°F
S 7 mph
Feels like: +10°F
Precip.: 0%
Places in USA:
Name
°F
+19°F
+77°F
+77°F
+73°F
+75°F
+52°F
+55°F
+72°F
+16°F
+63°F
+66°F
+50°F
+46°F
+64°F
+27°F
24 Hours Forecast
Old Saybrook
Local time: 19:36
February 05, thursday
2100
18°F
S
7 mph
February 06, friday
0000
14°F
SW
8 mph
0300
10°F
SW
7 mph
0600
14°F
S
6 mph
0900
21°F
S
7 mph
1200
28°F
W
2 mph
1500
30°F
N
4 mph
1800
28°F
NE
2 mph
Units of measurement: °C / °F