Weather in South Bethany: January
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Average day temperature: | 40.9°F |
| Average night temperature: | 35.6°F | |
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Sea water temperature: | 42.5°F |
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Number of sunny days: | 14 days |
| Day length: | 9.5 - 10.2 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.2 in. | |
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forecast
| South Bethany |
temperature
| South Bethany |
Air temperature in January, °F
The highest day temperature during January of 2026 was 55°F. At the same time the lowest night temperature was 18°F. Daily and nightly averages during January were 37.2°F and 32.8°F.
Sea water temperature in South Bethany in January, °F
The average sea water temperature in January of 2026 was 39.5°F. The highest and lowest sea temperatures during the month were 42.1°F and 35.2°F.
Mostly all days in January are sunny but cloudy days are also possible.
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.
The average wind speed value in January is 12.0 mph It makes January one of the most windy months of the year.
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: 5.9.
Best time for vacation in South Bethany
South Bethany on a weather map
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