World Resorts USA South Bethany Weather

South Bethany weather in January

Weather in South Bethany: January

Average day temperature: 41.5°F
Average night temperature: 36.1°F
Sea water temperature: 43.0°F
Number of sunny days: 12 days
Day length: 9.5 - 10.2 hours
Number of rainy days: 2 days
Precipitation totals: 1.2 in.

Air temperature in January, °F

Show year:
2025
2024
2023

The highest day temperature during January of 2025 was 50°F. At the same time the lowest night temperature was 19°F. Daily and nightly averages during January were 35.5°F and 30.1°F.

Sea water temperature in South Bethany in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 38.9°F. The highest and lowest sea temperatures during the month were 45.5°F and 34.9°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in January is almost equal.

Precipitation total in January, in.

Precipitation total value in South Bethany in January is 1.2 in. Other months of the year show relatively similar values.

Wind speed in January, mph

The average wind speed value in January is 11.5 mph It makes January one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 5.6.

Best time for vacation in South Bethany

Sunniest months:
November 17 days
October 15 days
March 13 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 41.5 °F
February 44.7 °F
December 46.8 °F
Rainiest months:
August 4 days
July 3 days
October 3 days
Windiest months:
March 12.0 mph
January 11.5 mph
April 11.3 mph

South Bethany on a weather map

South Bethany
+37°F
S 20 mph
Feels like: +27°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+45°F
+55°F
+70°F
+77°F
+70°F
+23°F
+57°F
+48°F
+63°F
+63°F
+46°F
+5°F
24 Hours Forecast
South Bethany
Local time: 01:21
December 05, friday
0300
36°F
SW
15 mph
0600
36°F
SW
9 mph
0900
36°F
SW
6 mph
1200
37°F
SW
6 mph
1500
39°F
S
9 mph
1800
43°F
S
7 mph
2100
41°F
SW
6 mph
December 06, saturday
0000
41°F
S
9 mph
Units of measurement: °C / °F