Current sea water temperature:
+40.8°F
| Minimum sea water temperature in January: | 46.6°F |
| Maximum sea water temperature in January: | 33.8°F |
| Average sea water temperature in January: | 42.0°F |
| more information | |
14 days
forecast
forecast
| Rehoboth Beach |
monthly
weather
weather
| Rehoboth Beach |
Sea water temperature for the last 10 days:
| January 15 | 40.8°F | January 10 | 39.4°F |
| January 14 | 40.3°F | January 9 | 38.8°F |
| January 13 | 40.6°F | January 8 | 40.3°F |
| January 12 | 41.7°F | January 7 | 39.0°F |
| January 11 | 39.4°F | January 6 | 39.9°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
January
January
| 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: 00:39
January 16, friday
0300
28°F
E
25 mph
25 mph
0600
28°F
E
24 mph
24 mph
0900
30°F
E
20 mph
20 mph
1200
36°F
E
14 mph
14 mph
1500
39°F
NE
14 mph
14 mph
1800
37°F
N
17 mph
17 mph
2100
37°F
NE
17 mph
17 mph
January 17, saturday
0000
36°F
NE
19 mph
19 mph
