Atlantic City weather in December

In December, Atlantic City sees average daytime highs of 47°F and overnight lows near 38°F, with 4.4 in of precipitation across 9.7 wet days and about 9.3 hours of daylight. It is the 9th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 50°F in the first days to 44°F by the end. The sky is clear or mostly clear about 35% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 24 min at the start of December to 9 h 18 min by month's end. Set against the rest of the year, December is Atlantic City's 8th-clearest and 2nd-windiest month. For the whole year in context, see Atlantic City's year-round climate.

Daytime high
47°
9th warmest
Overnight low
38°
4th coldest
Precipitation
4.4 in
9.7 wet days
Daylight
9 h 12 min
7:17 AM – 4:31 PM
Cloud cover
58%
8th clearest
Wind
13 mph
2nd windiest
Solar energy
1.93 kWh/m²
Travel score
1.4
out of 10

Atlantic City is city in Atlantic County, New Jersey, United States.

Density
890/km²
people per km²
Founded
1854

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 50°F in the first days to 44°F by the end.

A typical December day in Atlantic City reaches about 47°F in the afternoon and slips back to 38°F overnight — a 8°F spread between the day's warmth and the night's chill. On most days the high lands between 36°F and 56°F. Set against its neighbours, December runs about 8°F cooler than November and about 5°F warmer than January.

20°30°40°50°60°151015202531
Avg high (°F)Avg low (°F)
15042
25042
35042
44942
54941
64941
74840
84840
94840
104840
114739
124739
134739
144739
154638
164638
174638
184638
194638
204637
214537
224537
234537
244537
254537
264437
274436
284436
294436
304436
314436

How December really feels in Atlantic City

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 21 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
21
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Atlantic City weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan42° / 33°3.69.72.79.50.2
Feb42° / 33°3.69.22.810.50.2
Mar46° / 38°4.710.41.411.71.4
Apr54° / 47°3.69.60.1133.4
May63° / 56°3.39.4014.15.5
Jun72° / 66°2.98.7014.76.9
Jul78° / 73°3.08.5014.57.1
Aug78° / 72°3.98.9013.57.1
Sep73° / 67°3.88.3012.37.2
Oct64° / 57°4.58.50116.0
Nov54° / 47°3.58.40.19.83.6
Dec47° / 38°4.49.71.19.31.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
34951
44753
54654
64654
74555
84456
94357
104357
114258
124357
134357
144357
154357
164555
174555
184555
194654
204753
214951
224951
235050
245149
255149
265149
275149
285149
295149
305149
315149

Chance of precipitation in December

Any precipitationSnow

Atlantic City gets around 4.4 in of rain and snow over 9.7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 34% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1292
2302
3302
4312
5323
6323
7333
8333
9333
10343
11343
12343
13343
14343
15343
16333
17333
18323
19323
20313
21314
22304
23304
24294
25294
26294
27294
28294
29294
30295
31305

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1973
2973
3973
4973
5982
6982
7982
8982
9982
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
301000
311000

Wind in December

Winds average 13 mph in December.

Across December, daily wind ranges from about 13 mph on the calmest days to 13 mph at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (mph)Feels
113breezy
213breezy
313breezy
413breezy
513breezy
613breezy
713breezy
813breezy
913breezy
1013breezy
1113breezy
1213breezy
1313breezy
1413breezy
1513breezy
1613breezy
1713breezy
1813breezy
1913breezy
2013breezy
2113breezy
2213breezy
2313breezy
2413breezy
2513breezy
2613breezy
2713breezy
2813breezy
2913breezy
3013breezy
3113breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 24 min at the start of December to 9 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:05 AM to 7:23 AM, and sunset from 4:30 PM to 4:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.47:054:30
29.47:064:30
39.47:064:30
49.47:074:30
59.47:084:30
69.37:094:30
79.37:104:30
89.37:114:30
99.37:124:30
109.37:124:30
119.37:134:30
129.37:144:30
139.37:154:30
149.37:154:31
159.27:164:31
169.27:174:31
179.27:174:31
189.27:184:32
199.27:184:32
209.27:194:32
219.27:204:33
229.27:204:33
239.27:204:34
249.27:214:34
259.27:214:35
269.27:224:35
279.27:224:36
289.27:224:37
299.27:234:37
309.37:234:38
319.37:234:39

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.93 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.93 kWh/m² to a high of 6.54 kWh/m² in June across the year — December's 1.93 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.1Moderate
22.1Moderate
32.0Moderate
42.0Moderate
52.0Moderate
62.0Dim
72.0Dim
81.9Dim
91.9Dim
101.9Dim
111.9Dim
121.9Dim
131.9Dim
141.9Dim
151.9Dim
161.9Dim
171.9Dim
181.9Dim
191.9Dim
201.9Dim
211.9Dim
221.9Dim
231.9Dim
241.9Dim
251.9Dim
261.9Dim
272.0Dim
282.0Dim
292.0Dim
302.0Dim
312.0Moderate
Planning a trip in December

Hazard calendar for Atlantic City

In seasonPeak

None of Atlantic City's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Atlantic City sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Atlantic City?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

1.4
Sightseeing
9th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Atlantic City.

What to pack for Atlantic City in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Atlantic City sees daytime highs around 47°F and nights near 38°F. Pack a warm layer. Worth having: rain gear and a windbreaker. About 10 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Atlantic City in December

The nearest coast averages about 48°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 75°F and coldest in February near 39°F.

It's comfortable for a long swim from Jun 25 to Oct 2 — about 3.3 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan42Bracing
Feb39Bracing
Mar41Bracing
Apr47Bracing
May56Bracing
Jun66Cool
Jul73Refreshing
Aug75Refreshing
Sep72Refreshing
Oct65Cool
Nov56Bracing
Dec48Bracing

UV index in Atlantic City in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Atlantic City peaks around July 11 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 8Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug6High
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low
Location & terrain

Where is Atlantic City?

Atlantic City sits at 39.4°N, 74.4°W, 7 ft above sea level, in United States. The nearest listed city is Pleasantville, 5.6 mi away.

Topography around Atlantic City

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Atlantic City.

Within 2 miles, the terrain around Atlantic City has only modest variations in elevation — a maximum elevation change of 89 ft around an average of 3 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 135 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 285 ft.

The land around Atlantic City is covered by water (59%) and artificial surfaces (25%) within 2 miles, water (69%) within 10 miles, and water (47%) and trees (39%) within 50 miles.

2 miles
89 ft
10 miles
135 ft
50 miles
285 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Pleasantville 5.6 mi · Ocean Acres 27 mi · South Vineland 33 mi · Millville 33 mi · Vineland 34 mi · Jackson 37 mi · Williamstown 38 mi · Sicklerville 38 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Atlantic City (39.3642°, -74.4231°, elevation 7 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).