Measurements:
°C
°F
Lewes
46°F
S 7 mph
Feels like: 42°F
Precip: 0%
World Resorts USA Lewes Weather

Lewes Sea Water Temperature

Current Sea Water Temperature:
+38.6°F
Maximum Sea Water Temperature in January: 46.2°F
Minimum Sea Water Temperature in January: 31.4°F
Average water temperature in January: 40.7°F

Sea Water Temperature for the Last 10 Days:

January 08 38.6°F January 03 39.6°F
January 07 37.4°F January 02 39.4°F
January 06 38.4°F January 01 39.8°F
January 05 38.8°F December 31 39.4°F
January 04 38.8°F December 30 39.2°F

When is the Warmest Sea for Lewes?

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

Average Water Temperature by Month, °F

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Lewes was 81.0°F. The maximum and minimum values were 77.8°F and 84.6°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Lewes was 79.5°F. The maximum and minimum values were 76.8°F and 86.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Lewes was 75.0°F. The maximum and minimum values were 73.4°F and 77.2°F respectively.

Best Time to Visit Lewes
The most sunny months:
November 17 days
October 15 days
March 13 days
The most warm months:
July 86.3 °F
August 83.5 °F
June 80.2 °F
Warmest sea temperature:
July 80.0 °F
August 79.0 °F
September 75.9 °F
The most cold months:
January 39.9 °F
February 43.2 °F
December 44.8 °F
The most rainy months:
August 4 days
March 3 days
July 3 days
The most windy months:
March 12 mph
January 11 mph
April 11 mph

Lewes on the Weather Map

USA Resorts:
NAME
Chicago +54
Hawaii +78
Honolulu +78
Houston +78
Las Vegas +54
Los Angeles +58
Maui +72
Miami +86
Miami Beach +80
New York +52
San Diego +64
San Francisco +52
Sarasota +82
Tampa +88
Washington +60
24 Hours Weather Forecast
Lewes
Local time: 15:30
08 jan, thursday
1800 46°F
S
2 mph
2100 34°F
N
2 mph
09 jan, friday
0000 34°F
N
6 mph
0300 34°F
N
9 mph
0600 36°F
N
9 mph
0900 40°F
N
12 mph
1200 42°F
N
14 mph
1500 46°F
N
19 mph