Current sea water temperature:
+41.9°F
| Minimum sea water temperature in December: | 56.5°F |
| Maximum sea water temperature in December: | 41.0°F |
| Average sea water temperature in December: | 47.6°F |
| more information | |
14 days
forecast
forecast
| Rehoboth Beach |
monthly
weather
weather
| Rehoboth Beach |
Sea water temperature for the last 10 days:
| December 24 | 41.9°F | December 19 | 43.2°F |
| December 23 | 41.9°F | December 18 | 41.9°F |
| December 22 | 42.3°F | December 17 | 41.4°F |
| December 21 | 43.2°F | December 16 | 42.4°F |
| December 20 | 43.7°F | December 15 | 43.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Rehoboth Beach?
Based on the data about daily sea water temperature for the last three years the warmest sea in Rehoboth Beach was noticed in July, August and September.
Monthly Sea Temperatures in Rehoboth Beach, °F
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 77.3°F. The highest and lowest sea temperatures during the month were 80.4°F and 74.1°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 76.4°F. The highest and lowest sea temperatures during the month were 82.6°F and 73.8°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 72.5°F. The highest and lowest sea temperatures during the month were 74.7°F and 70.9°F.
current
weather
weather
| Rehoboth Beach |
weather in
December
December
| Rehoboth Beach |
Best time for vacation in Rehoboth Beach
Rehoboth Beach on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Rehoboth Beach
Local time: 01:32
December 25, thursday
0300
41°F
NW
2 mph
2 mph
0600
39°F
N
7 mph
7 mph
0900
39°F
NE
13 mph
13 mph
1200
39°F
NE
17 mph
17 mph
1500
43°F
E
13 mph
13 mph
1800
41°F
SE
13 mph
13 mph
2100
39°F
S
16 mph
16 mph
December 26, friday
0000
36°F
S
19 mph
19 mph
