Atlantic City weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Poor
Best time to visit: July – September
What is the weather like in Atlantic City in January?
In January, Atlantic City is cold: daytime highs average 5 °C, and nights often drop below freezing (−1 °C). The sea averages 5.7 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 83 mm in total. Snow falls on about 3 days. All in all, January is not an ideal month for a holiday in Atlantic City.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 17 | 19 | 20 |
| Day | 8° | 5° | 6° |
| Night | 2° | −1° | 0° |
| Sea | 9° | 6° | 4° |
| Sun | 4 h | 5 h | 5 h |
| Rain days | 9 | 9 | 9 |
More details for January
- Daylight
- 9 h 41 min07:16 – 16:57
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 56 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 3 days1 cm or more of fresh snowAll months
- Time zone
- UTC−5America/New_York
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %30 %
- Few rainy daysweight 20 %64 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in January
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Atlantic City in January: quick answers
Is Atlantic City hot in January?
No. In January, Atlantic City is cold: daytime highs average 5 °C and nights drop to about −1 °C.
Can you swim in Atlantic City in January?
Only if you don't mind cold water: in January the sea averages just 5.7 °C. Comfortable swimming is possible from July to September.
Does it rain much in Atlantic City in January?
Rain is frequent, with about 9 rainy days and 83 mm in total.
Atlantic City month by month
The whole year in Atlantic CityAll destinations: USAWhere to go in JanuarySea temperature in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences