Current sea water temperature:
+75.7°F
| Minimum sea water temperature in August: | 79.5°F |
| Maximum sea water temperature in August: | 68.2°F |
| Average sea water temperature in August: | 74.6°F |
| more information | |
14 days
forecast
forecast
| Bethany Beach |
monthly
weather
weather
| Bethany Beach |
Sea water temperature for the last 10 days:
| August 13 | 75.7°F | August 8 | 75.6°F |
| August 12 | 77.0°F | August 7 | 75.4°F |
| August 11 | 77.9°F | August 6 | 75.2°F |
| August 10 | 77.9°F | August 5 | 74.3°F |
| August 9 | 77.4°F | August 4 | 74.1°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 August, July and September.
Monthly Sea Temperatures in Bethany Beach, °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 July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 74.0°F. The highest and lowest sea temperatures during the month were 76.3°F and 71.4°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
August
August
| 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: 09:04
August 13, thursday
1200
84°F
SE
10 mph
10 mph
1500
81°F
S
7 mph
7 mph
1800
82°F
W
2 mph
2 mph
2100
79°F
NE
4 mph
4 mph
August 14, friday
0000
79°F
E
4 mph
4 mph
0300
77°F
SE
6 mph
6 mph
0600
77°F
SW
10 mph
10 mph
0900
75°F
SW
12 mph
12 mph
