Current sea water temperature:
+41.0°F
| Minimum sea water temperature in January: | 48.4°F |
| Maximum sea water temperature in January: | 34.9°F |
| Average sea water temperature in January: | 42.8°F |
| more information | |
14 days
forecast
forecast
| Bethany Beach |
monthly
weather
weather
| Bethany Beach |
Sea water temperature for the last 10 days:
| January 1 | 41.0°F | December 27 | 41.5°F |
| December 31 | 41.0°F | December 26 | 42.4°F |
| December 30 | 41.7°F | December 25 | 43.2°F |
| December 29 | 41.4°F | December 24 | 41.5°F |
| December 28 | 41.0°F | December 23 | 41.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Bethany Beach?
Based on the data about daily sea water temperature for the last three years the warmest sea in Bethany Beach was noticed in July, August and September.
Monthly Sea Temperatures in Bethany Beach, °F
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 75.6°F. The highest and lowest sea temperatures during the month were 77.9°F and 73.6°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 75.3°F. The highest and lowest sea temperatures during the month were 78.4°F and 72.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 72.7°F. The highest and lowest sea temperatures during the month were 74.7°F and 71.4°F.
current
weather
weather
| Bethany Beach |
weather in
January
January
| Bethany Beach |
Best time for vacation in Bethany Beach
Bethany Beach on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Bethany Beach
Local time: 02:39
January 01, thursday
0300
37°F
NE
19 mph
19 mph
0600
37°F
E
21 mph
21 mph
0900
37°F
E
20 mph
20 mph
1200
36°F
SE
25 mph
25 mph
1500
36°F
SE
22 mph
22 mph
1800
34°F
E
14 mph
14 mph
2100
28°F
SE
11 mph
11 mph
January 02, friday
0000
28°F
SE
11 mph
11 mph
