Climateby Month

Myrtle Beach, SC climate by month

NOAA 1991-2020 normals · 25 ft elevation

Myrtle Beach has warm and oppressively humid summers and cool winters. Highs peak at 87°F in July and fall to 56°F in January. Wet days are spread through the year, from about 7 to 11 a month. By our comfort score the best months are June and September.

Warmest month
87°F
July normal high
Coldest month
34°F
January normal low
Wet days a year
103
55.3 in of precipitation
Muggy days a year
136
dew point 65°F or higher

How warm is Myrtle Beach?

Normal highs range from 56°F in January to 87°F in July.

20°40°60°80°100° January: normal high 56°F (13°C), low 34°F (1°C) 56° 34° February: normal high 58°F (14°C), low 36°F (2°C) March: normal high 64°F (18°C), low 42°F (6°C) April: normal high 72°F (22°C), low 51°F (11°C) May: normal high 79°F (26°C), low 60°F (16°C) June: normal high 85°F (29°C), low 68°F (20°C) July: normal high 87°F (31°C), low 72°F (22°C) 87° 72° August: normal high 87°F (31°C), low 70°F (21°C) September: normal high 83°F (28°C), low 65°F (18°C) October: normal high 76°F (24°C), low 54°F (12°C) November: normal high 66°F (19°C), low 42°F (6°C) December: normal high 59°F (15°C), low 36°F (2°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Myrtle Beach?

July has the most wet days (about 11); the year brings about 55 in of precipitation.

January: 9 wet days February: 9 wet days March: 8 wet days April: 7 wet days 7 May: 8 wet days June: 10 wet days July: 11 wet days 11 August: 11 wet days September: 9 wet days October: 7 wet days November: 7 wet days December: 9 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How humid is Myrtle Beach?

Muggy days peak in August, at about 30 days.

January: 0 muggy days February: 0 muggy days 0 March: 0 muggy days April: 3 muggy days May: 15 muggy days June: 26 muggy days July: 30 muggy days August: 30 muggy days 30 September: 22 muggy days October: 9 muggy days November: 2 muggy days December: 1 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Grand Strand Airport, 13 mi NE of the city center.

How much daylight?

Daylight ranges from about 10.0 hours in December to 14.4 hours in June.

January: 10.2 hours of daylight February: 11.0 hours of daylight March: 12.0 hours of daylight April: 13.0 hours of daylight May: 13.9 hours of daylight June: 14.3 hours of daylight 14.3 July: 14.1 hours of daylight August: 13.4 hours of daylight September: 12.4 hours of daylight October: 11.3 hours of daylight November: 10.4 hours of daylight December: 10.0 hours of daylight 10.0 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Myrtle Beach, 1991-2020
MonthHighLowPrecip.Wet daysMuggy daysDaylight
January 56°F34°F 3.7 in9 0 10.2 h
February 58°F36°F 3.4 in9 0 11.0 h
March 64°F42°F 4.0 in8 0 12.0 h
April 72°F51°F 3.5 in7 3 13.0 h
May 79°F60°F 3.8 in8 15 13.9 h
June 85°F68°F 4.9 in10 26 14.3 h
July 87°F72°F 6.0 in11 30 14.1 h
August 87°F70°F 6.1 in11 30 13.4 h
September 83°F65°F 7.0 in9 22 12.4 h
October 76°F54°F 5.1 in7 9 11.3 h
November 66°F42°F 3.0 in7 2 10.4 h
December 59°F36°F 4.6 in9 1 10.0 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Myrtle Beach

By our comfort score, the best months are June and September.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jun 50184
Aug 46086
Sep 51362

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Myrtle Beach

The last spring frost typically comes around Mar 21, and the first fall frost around Nov 13, leaving 239 frost-free days in a typical year.

Frost and freeze dates for Myrtle Beach
Typical date1 year in 10
Last spring frost (32°F)Mar 21after Apr 7
First fall frost (32°F)Nov 13before Oct 31
Last hard freeze (28°F)Mar 7after Mar 28
First hard freeze (28°F)Nov 26before Nov 7
Frost-free season239 daysunder 216 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Myrtle Beach (USC00386153), NOAA 1991-2020 freeze probabilities. Frost dates for every city in South Carolina.

Hottest and coldest readings, 1991-2020

The highest reading was 100°F (June 29, 1998); the lowest was 13°F (February 20, 2015).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Myrtle Beach

Similar climates elsewhere

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).

Distances from the city center (USGS). Methodology · Report an error