World Resorts USA Stonington Weather

Stonington sea water temperature

Current sea water temperature:
+35.8°F
Minimum sea water temperature in February: 43.7°F
Maximum sea water temperature in February: 34.7°F
Average sea water temperature in February: 40.3°F

Sea water temperature for the last 10 days:

February 5 35.8°F January 31 37.0°F
February 4 35.8°F January 30 37.2°F
February 3 34.7°F January 29 37.6°F
February 2 36.7°F January 28 37.9°F
February 1 36.3°F January 27 39.0°F

When is the warmest sea in Stonington?

Based on the data about daily sea water temperature for the last three years the warmest sea in Stonington was noticed in August, July and September.

Monthly Sea Temperatures in Stonington, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 69.7°F. The highest and lowest sea temperatures during the month were 73.6°F and 67.8°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 68.9°F. The highest and lowest sea temperatures during the month were 72.0°F and 65.3°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 68.2°F. The highest and lowest sea temperatures during the month were 70.9°F and 66.9°F.

Best time for vacation in Stonington

Sunniest months:
November 16 days
December 14 days
October 14 days
Warmest months:
July 79.5 °F
August 78.1 °F
June 73.3 °F
Warmest sea temp:
August 70.0 °F
July 68.7 °F
September 68.2 °F
Coldest months:
January 36.2 °F
February 38.0 °F
December 41.1 °F
Rainiest months:
October 4 days
July 3 days
November 3 days
Windiest months:
January 10.5 mph
December 10.3 mph
March 9.8 mph

Stonington on a weather map

Stonington
+16°F
S 8 mph
Feels like: +9°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
+54°F
+27°F
24 Hours Forecast
Stonington
Local time: 21:00
February 06, friday
0000
12°F
SW
9 mph
0300
10°F
SW
7 mph
0600
16°F
S
7 mph
0900
23°F
S
7 mph
1200
28°F
W
4 mph
1500
30°F
NW
2 mph
1800
28°F
NE
2 mph
2100
28°F
E
2 mph
Units of measurement: °C / °F