Myrtle Beach, SC weather in December
In December, Myrtle Beach sees highs around 59°F and lows around 36°F: cool, with some rain. Expect about 9 wet days.
- Normal high
- 59°F
- Normal low
- 36°F
- Wet days
- 9
- 4.6 in total
- Muggy days
- 1
- dew point 65°F+
How December changes from start to finish
| December 1 | December 31 | |
|---|---|---|
| Normal high | 62°F | 56°F |
| Normal low | 39°F | 35°F |
| Chance of a wet day | 25% | 28% |
| Sunrise / sunset | 7:02 am / 5:07 pm | 7:19 am / 5:17 pm |
| Daylight | 10.1 h | 9.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical December day
- 6 am42°Fdew point 37°F
- 9 am46°Fdew point 38°F
- Noon55°Fdew point 38°F
- 3 pm58°Fdew point 38°F
- 6 pm52°Fdew point 39°F
- 9 pm47°Fdew point 39°F
NOAA hourly normals (local standard time) from Florence Rgnl Airport (59 mi away); average wind 7 mph; clear or few clouds in 62% of daytime hours, mostly cloudy or overcast in 34%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°Fnot available
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph0 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more1 of 31
- Wet daysat least 0.01 in of rain or melted snow9 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below9 of 31
Average days per December, counted from daily records for each year 1991-2020.
Rain in December
Normal precipitation is 4.6 in; a dry December brings about 2.8 in and a wet one about 5.8 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How December varies from year to year
- Warmest December, 1991-20202007: average high 66°F
- Coolest December2000: average high 52°F
- Wettest December1994: 14.0 in
- Driest December2011: 0.3 in
- Highest reading79°F (December 14, 2007)
- Lowest reading18°F (December 16, 2010)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
December compared with November and January
| November | December | January | |
|---|---|---|---|
| Normal high | 66°F | 59°F | 56°F |
| Normal low | 42°F | 36°F | 34°F |
| Wet days | 7 | 9 | 9 |
| Comfortable days | – | – | – |
| Daylight | 10.4 h | 10.0 h | 10.2 h |
Highs change by -7°F from November and -3°F into January.
Nearby alternatives in December
- Warmer: Savannah, GA170 mi · high 64°F · 8 wet days
- Cooler: Greensboro, NC172 mi · high 52°F · 9 wet days
How Myrtle Beach ranks in December
- Normal high123rd warmest of 378 cities; 5th of 5 in South Carolina
- Wet days156th driest of 378
What to pack for Myrtle Beach in December
- A warm jacket – lows near 36°F, highs near 59°F
- A rain jacket or umbrella – rain on about 9 days
Heating and cooling
December has 545 heating degree days and 1 cooling degree days (base 65°F), 12% of the year's total heating and cooling demand.
Questions
How cold is Myrtle Beach in December?
The normal high is 59°F and the normal low is 36°F. From 1991 to 2020 the coldest December reading was 18°F (most recently on December 16, 2010).
Does it rain a lot in Myrtle Beach in December?
About 9 days in December have at least 0.01 in of precipitation, and the normal total is 4.6 in. The wettest December in 1991-2020 was in 1994 (14.0 in); the driest was in 2011 (0.3 in).
Where the numbers come from
- Temperature and frost dates: Myrtle Beach (USC00386153), 5.8 mi NE of the city center, 39 ft . NOAA normals and daily records, 1991-2020.
- Rain: Brookgreen Gardens (USC00381093), 17 mi SW of the city center, 20 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Florence Rgnl Airport (USW00013744), 59 mi NW of the city center, 146 ft (121 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Grand Strand Airport (747915-93718), 13 mi NE of the city center, 29 ft . Hourly observations, 1991-2020.
- Not available for this location: snowfall and snow depth (no station close enough or similar enough in elevation).