Atlantic City weather by month & the best time to visit
United States · beach resort · humid subtropical climate
The best time to visit Atlantic City is September — its sunniest month (Sunshine Score 76/100), with June and July close behind. Atlantic City averages about 2,260 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 90 mm of rain in September.
When is the best time to visit Atlantic City?
For sunshine, the best time to visit Atlantic City is September, then June and July. The dullest month is January (0/100, 81 mm of rain). The full month-by-month picture is in the table below.
How sunny is Atlantic City?
Atlantic City gets a moderate 2,260 hours of sunshine a year. 76 Sunshine Score points separate September (76) from January (0), so the month you pick matters. It ranks #297 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 1,205 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 5° / 41°F | -1° / 30°F | 81 mm | 1 | 5° / 41°F |
| February | 0 | 5° / 41°F | -1° / 30°F | 85 mm | 2 | 5° / 41°F |
| March | 6 | 9° / 48°F | 2° / 36°F | 105 mm | 4 | 8° / 46°F |
| April | 37 | 14° / 57°F | 7° / 45°F | 94 mm | 5 | 11° / 52°F |
| May | 69 | 19° / 66°F | 12° / 54°F | 89 mm | 6 | 16° / 61°F |
| June | 73 | 24° / 75°F | 18° / 64°F | 106 mm | 7 | 21° / 70°F |
| July | 72 | 27° / 81°F | 21° / 70°F | 111 mm | 7 | 23° / 73°F |
| August | 72 | 27° / 81°F | 21° / 70°F | 109 mm | 7 | 23° / 73°F |
| September | 76 | 24° / 75°F | 18° / 64°F | 90 mm | 5 | 23° / 73°F |
| October | 65 | 19° / 66°F | 12° / 54°F | 117 mm | 3 | 19° / 66°F |
| November | 31 | 13° / 55°F | 6° / 43°F | 99 mm | 2 | 14° / 57°F |
| December | 0 | 8° / 46°F | 2° / 36°F | 119 mm | 1 | 7° / 45°F |
Sea temperature in Atlantic City by month
The sea off Atlantic City is warmest in July at around 23°C / 73°F, and coolest in January at 5°C / 41°F. The water sits at a comfortable 21°C or warmer roughly 4 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Atlantic City compares month by month: Atlantic City vs New York · Atlantic City vs Philadelphia · Atlantic City vs Trenton · all comparisons
Atlantic City: questions and answers
What kind of destination is Atlantic City?
Atlantic City is a beach resort in United States with a humid subtropical climate — the sea reaches 23°C at its warmest and is swimmable (21°C+) about 4 months a year.
How many hours of sunshine does Atlantic City get a year?
Atlantic City gets about 2,260 hours of sunshine a year, at its best around September.
When is the best time to visit Atlantic City?
The sunniest time to visit Atlantic City is September, when the Sunshine Score peaks at 76/100 (with June and July close behind). Expect daytime highs around 24°C / 75°F.
What is the least sunny month in Atlantic City?
January is the least sunny month in Atlantic City, scoring 0/100 with about 81 mm of rain.
What is the sea temperature in Atlantic City?
The sea in Atlantic City ranges from about 5°C (January) to 23°C (July). Month-by-month sea temperatures are on this page.
How strong is the sun in Atlantic City?
The typical midday UV index in Atlantic City peaks around 7 (high) in June, easing to about 1 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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