Climateby Month

Myrtle Beach, SC weather in January

NOAA 1991-2020 normals and daily records · Myrtle Beach all year

In January, Myrtle Beach sees highs around 56°F and lows around 34°F: cool, with some rain. There are about 9 days with rain. It is one of the coolest months in Myrtle Beach.

Normal high
56°F
Normal low
34°F
Wet days
9
3.7 in total
Muggy days
0
dew point 65°F+

How January changes from start to finish

Normal values at the start and end of January
January 1January 31
Normal high56°F56°F
Normal low34°F34°F
Chance of a wet day28%29%
Sunrise / sunset7:20 am / 5:17 pm7:12 am / 5:45 pm
Daylight10.0 h10.5 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 January day

  1. 6 am40°Fdew point 33°F
  2. 9 am43°Fdew point 34°F
  3. Noon51°Fdew point 34°F
  4. 3 pm55°Fdew point 33°F
  5. 6 pm50°Fdew point 34°F
  6. 9 pm45°Fdew point 35°F

NOAA hourly normals (local standard time) from Florence Rgnl Airport (59 mi away); average wind 7 mph; clear or few clouds in 61% of daytime hours, mostly cloudy or overcast in 35%.

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 more0 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 below13 of 31

Average days per January, counted from daily records for each year 1991-2020.

Rain in January

Normal precipitation is 3.7 in; a dry January brings about 2.2 in and a wet one about 4.9 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.

How January varies from year to year

  • Warmest January, 1991-20202007: average high 62°F
  • Coolest January2011: average high 49°F
  • Wettest January1998: 10.7 in
  • Driest January2003: 0.8 in
  • Highest reading78°F (January 28, 1999)
  • Lowest reading14°F (January 7, 2018)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

January compared with December and February

DecemberJanuaryFebruary
Normal high59°F56°F58°F
Normal low36°F34°F36°F
Wet days999
Comfortable days–––
Daylight10.0 h10.2 h11.0 h

Highs change by -3°F from December and +2°F into February.

Nearby alternatives in January

How Myrtle Beach ranks in January

  • Normal high152nd warmest of 378 cities; 5th of 5 in South Carolina
  • Wet days159th driest of 378

What to pack for Myrtle Beach in January

  • A warm jacket – lows near 34°F, highs near 56°F
  • A rain jacket or umbrella – rain on about 9 days

Heating and cooling

January has 634 heating degree days and 0 cooling degree days (base 65°F), 14% of the year's total heating and cooling demand.

Questions

How cold is Myrtle Beach in January?

The normal high is 56°F and the normal low is 34°F. From 1991 to 2020 the coldest January reading was 14°F (January 7, 2018).

Does it rain a lot in Myrtle Beach in January?

About 9 days in January have at least 0.01 in of precipitation, and the normal total is 3.7 in. The wettest January in 1991-2020 was in 1998 (10.7 in); the driest was in 2003 (0.8 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).