Current sea water temperature:
+42.1°F
| Minimum sea water temperature in January: | 48.7°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
| South Bethany |
monthly
weather
weather
| South Bethany |
Sea water temperature for the last 10 days:
| January 12 | 42.1°F | January 7 | 39.9°F |
| January 11 | 40.6°F | January 6 | 39.4°F |
| January 10 | 40.5°F | January 5 | 39.6°F |
| January 9 | 39.9°F | January 4 | 39.7°F |
| January 8 | 40.1°F | January 3 | 39.9°F |
Monthly sea water temperature, °F
When is the warmest sea in South Bethany?
Based on the data about daily sea water temperature for the last three years the warmest sea in South Bethany was noticed in July, August and September.
Monthly Sea Temperatures in South Bethany, °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
| South Bethany |
weather in
January
January
| South Bethany |
Best time for vacation in South Bethany
South Bethany on a weather map
Places in USA:
Name
°F
24 Hours Forecast
South Bethany
Local time: 00:32
January 13, tuesday
0300
36°F
NE
11 mph
11 mph
0600
36°F
NE
9 mph
9 mph
0900
37°F
NE
7 mph
7 mph
1200
45°F
NE
11 mph
11 mph
1500
45°F
NE
15 mph
15 mph
1800
46°F
N
17 mph
17 mph
2100
45°F
NE
19 mph
19 mph
January 14, wednesday
0000
45°F
NE
22 mph
22 mph
