The highest day temperature in January 2025 was 48°F. The lowest night temperature was 15°F. The average values for day and night temperatures during January were 34.1°F и 28.5°F respectivly.

The average sea surface temperature in January 2025 for Sea Isle City was 38.7°F. The maximum and minimum values were 34.8°F and 43.8°F respectively.

You can expect various weather conditions during January. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in January for Sea Isle City is 1.1 in. It makes january one of the least rainy months of the year.

The average wind speed in January is 11.5 mph. It makes January one of the most windy months of the year for Sea Isle City.

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 Sea Isle City in January is 5.6 hours.