Measurements:
°C
°F
Rehoboth Beach
70°F
NW 6 mph
Feels like: 70°F
Precip: 3%
World Resorts USA Rehoboth Beach Weather

Rehoboth Beach Sea Water Temperature

Current Sea Water Temperature:
+65.0°F
Maximum Sea Water Temperature in June: 82.0°F
Minimum Sea Water Temperature in June: 62.4°F
Average water temperature in June: 70.6°F

Sea Water Temperature for the Last 10 Days:

June 04 65.0°F May 29 62.8°F
June 03 64.2°F May 28 61.4°F
June 01 64.0°F May 27 61.6°F
May 31 64.4°F May 26 61.2°F
May 30 64.0°F May 25 61.8°F

When is the Warmest Sea for Rehoboth Beach?

According to our data for the last three years for Rehoboth Beach 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 Rehoboth Beach was 80.4°F. The maximum and minimum values were 76.8°F and 83.8°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Rehoboth Beach was 79.3°F. The maximum and minimum values were 76.4°F and 86.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Rehoboth Beach was 75.0°F. The maximum and minimum values were 73.2°F and 77.4°F respectively.

Best Time to Visit Rehoboth Beach
The most sunny months:
November 17 days
October 15 days
January 14 days
The most warm months:
July 85.9 °F
August 83.1 °F
June 79.7 °F
Warmest sea temperature:
July 79.3 °F
August 78.5 °F
September 75.8 °F
The most cold months:
January 39.2 °F
February 41.8 °F
December 44.8 °F
The most rainy months:
August 4 days
July 3 days
February 3 days
The most windy months:
March 12 mph
January 12 mph
February 12 mph

Rehoboth Beach on the Weather Map

USA Resorts:
NAME
Boston +90
Chicago +76
Hawaii +78
Honolulu +78
Houston +86
Las Vegas +94
Los Angeles +68
Maui +70
Miami +82
Miami Beach +84
New York +94
San Diego +64
San Francisco +60
Sarasota +94
Tampa +92
24 Hours Weather Forecast
Rehoboth Beach
Local time: 13:18
04 jun, thursday
1500 70°F
NW
11 mph
1800 70°F
N
14 mph
2100 66°F
N
11 mph
05 jun, friday
0000 64°F
NE
10 mph
0300 64°F
NE
9 mph
0600 64°F
E
7 mph
0900 72°F
E
7 mph
1200 78°F
N
5 mph