Measurements:
°C
°F
New London
72°F
SE 14 mph
Feels like: 72°F
Precip: 0%
World Resorts USA New London Weather

New London Sea Water Temperature

Current Sea Water Temperature:
+43.2°F
Maximum Sea Water Temperature in April: 49.4°F
Minimum Sea Water Temperature in April: 38.2°F
Average water temperature in April: 44.6°F

Sea Water Temperature for the Last 10 Days:

April 23 43.2°F April 18 41.6°F
April 22 43.4°F April 17 42.0°F
April 21 43.2°F April 16 42.2°F
April 20 43.4°F April 15 43.4°F
April 19 43.8°F April 14 44.6°F

When is the Warmest Sea for New London?

According to our data for the last three years for New London 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: 2025 2024 2023

The average sea surface temperature in August 2025 for New London was 72.6°F. The maximum and minimum values were 71.0°F and 76.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for New London was 72.2°F. The maximum and minimum values were 67.4°F and 75.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for New London was 70.9°F. The maximum and minimum values were 69.8°F and 73.4°F respectively.

Best Time to Visit New London
The most sunny months:
November 17 days
October 14 days
December 13 days
The most warm months:
July 83.2 °F
August 81.4 °F
June 76.1 °F
Warmest sea temperature:
August 72.9 °F
July 71.2 °F
September 70.9 °F
The most cold months:
January 34.6 °F
February 36.0 °F
December 39.9 °F
The most rainy months:
November 3 days
July 3 days
December 3 days
The most windy months:
January 10 mph
December 10 mph
March 10 mph

New London on the Weather Map

USA Resorts:
NAME
Chicago +64
Hawaii +78
Honolulu +78
Houston +82
Las Vegas +80
Los Angeles +82
Maui +74
Miami +82
Miami Beach +80
New York +80
San Diego +76
San Francisco +68
Sarasota +88
Tampa +92
Washington +90
24 Hours Weather Forecast
New London
Local time: 14:20
23 apr, thursday
1500 72°F
SE
14 mph
1800 70°F
SE
11 mph
2100 58°F
S
8 mph
24 apr, friday
0000 50°F
S
6 mph
0300 46°F
S
4 mph
0600 46°F
E
7 mph
0900 48°F
SE
9 mph
1200 54°F
SE
6 mph