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.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 2,260
- Sunniest month
- September
- Peak score
- 76/100
- Rain / year
- 1,205 mm
- Snow / year
- ≈48 cm
- Midday UV at peak
- 7 (high)
- Sea at warmest
- 23°C / 73°F
- Population
- 39k
- Elevation
- 19 m

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.
See Atlantic City on the interactive sunshine globe →
Nearby places for sunshine
- Philadelphia United States · 73 km · best in May · 2,267 h sun/yr
- Trenton United States · 93 km · best in May · 2,166 h sun/yr
- New York United States · 148 km · best in Sep · 2,252 h sun/yr
- Allentown/Bethlehem United States · 152 km · best in May · 2,074 h sun/yr
- Baltimore United States · 183 km · best in Oct · 2,241 h sun/yr
- White Plains United States · 194 km · best in May · 2,150 h sun/yr
Nearest destinations
- Dover United States · 85 km · 2,266 h sun/yr · best in May
- Ocean City United States · 136 km · 2,368 h sun/yr · best in Sep
- Salisbury United States · 148 km · 2,368 h sun/yr · best in May
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
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