The highest day temperature in January 2026 was 54°F. The lowest night temperature was 16°F. The average values for day and night temperatures during January were 37.0°F и 31.6°F respectivly.

The average sea surface temperature in January 2026 for Lewes was 37.9°F. The maximum and minimum values were 33.6°F and 40.2°F respectively.

Most of the days in January are sunny but you can also expect cloudy and gloomy days.

Precipitation total in January for Lewes is 1.1 in.

The average wind speed in January is 11.9 mph. It makes January one of the most windy months of the year for Lewes.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Lewes in January is 5.9 hours.