The highest day temperature in January 2026 was 54°F. The lowest night temperature was 10°F. The average values for day and night temperatures during January were 34.6°F и 27.8°F respectivly.

The average sea surface temperature in January 2026 for Atlantic City was 37.0°F. The maximum and minimum values were 31.4°F and 39.8°F respectively.

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

Precipitation total in January for Atlantic City is 2.2 in.

The average wind speed in January is 13.4 mph. It makes January the most windy month of the year for Atlantic 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 Atlantic City in January is 5.6 hours.