North Myrtle Beach weather in December

In December, North Myrtle Beach sees average daytime highs of 59°F and overnight lows near 47°F, with 4.1 in of precipitation across 9.4 wet days and about 9.8 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 61°F in the first days to 57°F by the end. The sky is clear or mostly clear about 39% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 48 min by month's end. Set against the rest of the year, December is North Myrtle Beach's 6th-clearest and 5th-windiest month. For the whole year in context, see North Myrtle Beach's year-round climate.

Daytime high
59°
10th warmest
Overnight low
47°
3rd coldest
Precipitation
4.1 in
9.4 wet days
Daylight
9 h 48 min
7:18 AM – 5:04 PM
Cloud cover
54%
6th clearest
Wind
10 mph
5th windiest
Solar energy
2.47 kWh/m²
Travel score
4.7
out of 10

North Myrtle Beach is city in Horry County, South Carolina, United States.

Density
352/km²
people per km²
Founded
1735

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 61°F in the first days to 57°F by the end.

A typical December day in North Myrtle Beach reaches about 59°F in the afternoon and slips back to 47°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 47°F and 70°F. Set against its neighbours, December runs about 6°F cooler than November and about 3°F warmer than January.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
16249
26149
36149
46148
56148
66048
76048
86048
96047
106047
116047
125947
135947
145947
155947
165946
175946
185846
195846
205846
215846
225846
235846
245846
255846
265846
275745
285745
295745
305745
315745

How December really feels in North Myrtle Beach

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 0 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
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

North Myrtle Beach weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan56° / 44°3.79.5104.0
Feb58° / 45°3.78.910.74.4
Mar63° / 51°4.08.911.75.8
Apr70° / 58°3.07.612.86.9
May76° / 66°3.19.413.77.1
Jun82° / 73°4.313.114.25.7
Jul85° / 76°5.516.6144.5
Aug84° / 76°6.717.113.34.7
Sep80° / 71°6.412.912.26.2
Oct73° / 62°4.07.911.17.3
Nov65° / 52°3.37.910.26.4
Dec59° / 47°4.19.49.84.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25545
35545
45446
55347
65248
75149
85149
95050
105050
115050
125050
135050
145050
154951
164951
174951
184951
195050
205050
214951
224951
234852
244852
254753
264753
274753
284753
294852
304852
314852

Chance of precipitation in December

Any precipitation

North Myrtle Beach gets around 4.1 in of rain and snow over 9.4 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 32% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
428
529
629
729
830
930
1030
1130
1231
1331
1431
1531
1631
1731
1832
1932
2032
2132
2232
2332
2432
2532
2632
2732
2832
2932
3032
3131

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 79% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
17314112
27414102
37414102
47414102
57514101
67514101
77514101
8761491
9771391
10771391
11771391
12771391
13781381
14781381
15791281
16801271
17801271
18811261
19811261
20801262
21811252
22811252
23811252
24821242
25821242
26821242
27821242
28811342
29811342
30811342
31801442

Wind in December

Winds average 10 mph in December.

Across December, daily wind ranges from about 10 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze
3110light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 48 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 7:07 AM to 7:24 AM, and sunset from 5:02 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:075:02
29.97:085:02
39.97:095:02
49.97:095:02
59.97:105:02
69.87:115:02
79.87:125:02
89.87:135:02
99.87:135:02
109.87:145:02
119.87:155:02
129.87:155:03
139.87:165:03
149.87:175:03
159.87:175:03
169.87:185:04
179.87:195:04
189.87:195:04
199.87:205:05
209.87:205:05
219.77:215:06
229.77:215:06
239.77:225:07
249.87:225:07
259.87:235:08
269.87:235:08
279.87:235:09
289.87:245:09
299.87:245:10
309.87:245:11
319.87:245:11

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.47 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 6.3 kWh/m² in May across the year — December's 2.47 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.7Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.5Moderate
142.5Moderate
152.4Moderate
162.4Moderate
172.4Moderate
182.4Moderate
192.4Moderate
202.4Moderate
212.4Moderate
222.4Moderate
232.4Moderate
242.4Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.5Moderate
292.5Moderate
302.5Moderate
312.5Moderate
Planning a trip in December

Hazard calendar for North Myrtle Beach

In seasonPeak

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

North Myrtle Beach 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 North Myrtle Beach?

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

4.7
Sightseeing
8th-best month of the year
0.2
Beach & pool
10th-best month of the year

December is a reasonable time to visit North Myrtle Beach for sightseeing.

What to pack for North Myrtle Beach in December

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

In December, North Myrtle Beach sees daytime highs around 59°F and nights near 47°F. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near North Myrtle Beach in December

The nearest coast averages about 62°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 83°F and coldest in February near 59°F.

It's comfortable for a long swim from Apr 29 to Nov 14 — about 6.6 months when the water holds above 68°F.

60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan60Cool
Feb59Bracing
Mar61Cool
Apr65Cool
May72Refreshing
Jun79Warm
Jul82Warm
Aug83Tropical
Sep80Warm
Oct74Refreshing
Nov68Cool
Dec62Cool

UV index in North Myrtle Beach in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in North Myrtle Beach peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 14UV 9Dec 19UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in North Myrtle Beach in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in North Myrtle Beach is worst in March — around 21 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (December, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodMar 1719 µg/m³Dec 146 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb12Good
Mar21Moderate
Apr12Moderate
May11Good
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep9Good
Oct6Good
Nov7Good
Dec6Good
Location & terrain

Where is North Myrtle Beach?

North Myrtle Beach sits at 33.8°N, 78.7°W, 7 ft above sea level, in United States. The nearest listed city is Myrtle Beach, 15 mi away.

Topography around North Myrtle Beach

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of North Myrtle Beach.

Within 2 miles, the terrain around North Myrtle Beach has only modest variations in elevation — a maximum elevation change of 102 ft around an average of 16 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 138 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 230 ft.

The land around North Myrtle Beach is covered by water (49%) within 2 miles, water (48%) and trees (37%) within 10 miles, and trees (55%) and water (31%) within 50 miles.

2 miles
102 ft
10 miles
138 ft
50 miles
230 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Myrtle Beach 15 mi · Socastee 21 mi · Conway 21 mi · Leland 47 mi · Wilmington 51 mi · Lumberton 58 mi · Florence 67 mi · Laurinburg 80 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 North Myrtle Beach (33.816°, -78.68°, 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).