Measurements:
°C
°F
Rehoboth Beach
98°F
E 9 mph
Feels like: 100°F
Precip: 1%
World Resorts USA Rehoboth Beach Weather

Rehoboth Beach Sea Water Temperature

Current Sea Water Temperature:
+77.6°F
Maximum Sea Water Temperature in July: 85.6°F
Minimum Sea Water Temperature in July: 70.8°F
Average water temperature in July: 79.2°F

Sea Water Temperature for the Last 10 Days:

July 15 77.6°F July 10 76.6°F
July 14 79.4°F July 09 74.6°F
July 13 80.6°F July 08 77.6°F
July 12 76.4°F July 07 79.0°F
July 11 76.6°F July 06 82.6°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: 2026 2025 2024

The average sea surface temperature in July 2026 for Rehoboth Beach was 78.3°F. The maximum and minimum values were 74.6°F and 84.8°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
June 15 days
October 15 days
The most warm months:
July 85.9 °F
August 83.1 °F
June 79.4 °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
February 3 days
July 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 +96
Chicago +86
Hawaii +82
Houston +80
Las Vegas +118
Los Angeles +100
Maui +78
Miami +96
Myrtle Beach +90
New York +104
San Diego +94
San Francisco +82
Santa Monica +82
Sarasota +96
Tampa +98
24 Hours Weather Forecast
Rehoboth Beach
Local time: 16:49
15 jul, wednesday
1800 98°F
E
9 mph
2100 86°F
NE
8 mph
16 jul, thursday
0000 82°F
NE
11 mph
0300 80°F
SE
8 mph
0600 80°F
S
6 mph
0900 82°F
SW
5 mph
1200 86°F
NE
2 mph
1500 90°F
N
8 mph