World Resorts USA South Bethany Weather

South Bethany sea water temperature

Current sea water temperature:
+34.5°F
Minimum sea water temperature in February: 46.0°F
Maximum sea water temperature in February: 32.0°F
Average sea water temperature in February: 40.2°F

Sea water temperature for the last 10 days:

February 26 34.5°F February 21 35.2°F
February 25 34.5°F February 20 35.8°F
February 24 35.4°F February 19 32.5°F
February 23 35.1°F February 18 32.2°F
February 22 35.4°F February 17 32.5°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.

Best time for vacation in South Bethany

Sunniest months:
November 17 days
October 15 days
January 14 days
Warmest months:
July 82.3 °F
August 79.8 °F
June 76.6 °F
Warmest sea temp:
July 74.4 °F
August 74.3 °F
September 73.3 °F
Coldest months:
January 40.9 °F
February 44.7 °F
December 45.9 °F
Rainiest months:
August 4 days
July 3 days
October 3 days
Windiest months:
March 12.0 mph
January 12.0 mph
December 11.4 mph

South Bethany on a weather map

South Bethany
+37°F
SW 12 mph
Feels like: +32°F
Precip.: 100%
Places in USA:
Name
°F
+55°F
+70°F
+70°F
+82°F
+77°F
+75°F
+73°F
+66°F
+45°F
+81°F
+59°F
+77°F
+77°F
+81°F
+36°F
24 Hours Forecast
South Bethany
Local time: 14:45
February 26, thursday
1500
37°F
SW
12 mph
1800
37°F
SW
13 mph
2100
37°F
SW
11 mph
February 27, friday
0000
37°F
SW
8 mph
0300
37°F
SW
7 mph
0600
37°F
SW
7 mph
0900
36°F
W
7 mph
1200
37°F
W
4 mph
Units of measurement: °C / °F