Climate Insights for Atlantic City

The climate in Atlantic City is temperate. The average annual temperature is 14°C and approximately 1148mm of precipitation falls per year. Atlantic City receives a notable amount of rainfall throughout the year, including during its driest month. Atlantic City is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are January, February, March, when temperatures can drop to 2°C. Light snow can occur between January and December.

Temperatures in Atlantic City vary considerably across the year, with a 23°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 25°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 2°C and an average of 4°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between May and June, with a 6°C shift in average temperatures.

Atlantic City is a moderately rainy area, receiving approximately 1148mm of precipitation annually, which averages out to around 96mm per month. The wettest month is October, averaging 125mm of rainfall. December and March also tend to see above-average precipitation. The driest month is August, with just 70mm. That's 56mm less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Light snowfall can occur between January and December, totalling around 29cm annually. January is the snowiest month with approximately 15cm.

Atlantic City is very windy, with an average annual wind speed of 32km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 37km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in August, with average winds dropping to 27km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 10km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 36km/h in winter, 34km/h in spring, 28km/h in summer, 33km/h in autumn.

It is currently spring in Atlantic City, which began on March 20, 2026. Atlantic City is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 25°C, while the coldest stretch bottoms out in January near 2°C. Summer is next, beginning on June 21, 2026 — 86 days from now.

The best time to visit Atlantic City is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 83mm per month. By contrast, January can be quite cold with temperatures dropping to 2°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Atlantic City based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.