Myrtle Beach, SC Climate & Monthly Averages

South Carolina, United States 🇺🇸 · humid subtropical climate
Annual avg
66°
Hottest month
July
Coldest month
January
Rainy days / yr
140
Sunshine
9.6 h/day
Right now: 67° and overcast - see live conditions

The climate of Myrtle Beach

Myrtle Beach averages 66°F (19°C) across the year, with 9.6 hours of sunshine a day and 58.5 inches (1487 mm) of precipitation. The spread runs from January, at 56°F (14°C), to July, at 87°F (30°C).

Climate quick facts

  • Hottest month: July - highs near 87°F (30°C)
  • Coldest month: January - highs near 56°F (14°C)
  • Decade extremes (2015-2024): 97°F (36°C) high · 19°F (-7°C) low
  • Wettest month: August (20 rainy days) · Sunniest: June (11.8 h sun/day)
  • Climate type: humid subtropical
  • Annual swing: 18°C between the average warmest and coolest month · day to night: 8°C
  • Months averaging 30°C or hotter: 1
  • Average humidity: 76%

Temperatures through the year

Snowfall is rare but not unheard of. January sits at the other end of the year: 56°F (14°C) by day, 42°F (6°C) at night. At its warmest, in July, Myrtle Beach runs to 87°F (30°C) in the afternoon and back to 75°F (24°C) by dawn. The wettest month is August (7.9 inches (200 mm) across 20 days) and the driest March.

Rain, sun and snow

Five of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is March through May. The gridded 2015-2024 daily record for this location tops out at 97°F (36°C) and bottoms at 19°F (-7°C) - decade extremes, not all-time station records.

How Myrtle Beach compares

  • Myrtle Beach sits close to the middle of our dataset on most measures: 66°F (19°C) as an annual average, 58.5 inches (1487 mm) of precipitation and 9.6 hours of sun a day.

Ranked against every city in our dataset, each measured on the same ten-year window.

Monthly climate table

Monthly averages for Myrtle Beach based on 2015–2024 weather data. Daylight is sunrise to sunset on the 15th; wet-day chance is the share of days with measurable rain.
MonthHighLow Rain daysPrecipitation SunshineDaylightWet-day chanceHumidity
January 56° 42° 9 3.6 in 7.5 h/day 10.1 h 30% 72%
February 61° 45° 9 3.9 in 7.9 h/day 10.9 h 32% 74%
March 66° 50° 9 3.4 in 8.8 h/day 11.9 h 29% 70%
April 72° 57° 8 3.5 in 10.8 h/day 13.0 h 27% 70%
May 79° 65° 11 3.8 in 11.4 h/day 13.9 h 37% 75%
June 84° 72° 16 5.4 in 11.8 h/day 14.4 h 54% 78%
July 87° 75° 20 7.0 in 11.4 h/day 14.2 h 65% 82%
August 85° 74° 20 7.9 in 10.6 h/day 13.4 h 64% 83%
September 82° 70° 13 7.7 in 10.0 h/day 12.3 h 44% 80%
October 75° 61° 7 4.1 in 9.3 h/day 11.3 h 22% 76%
November 66° 51° 8 3.7 in 8.2 h/day 10.4 h 26% 74%
December 60° 46° 10 4.6 in 7.0 h/day 9.9 h 31% 76%

Myrtle Beach month by month

Average high and low for each month, with the bar showing where it sits in Myrtle Beach's year (left is the coldest night, right is the warmest afternoon).

January

Coldest
56°42°
Rain
9 days
Sunshine
7.5 h
Daylight
10.1 h

February

61°45°
Rain
9 days
Sunshine
7.9 h
Daylight
10.9 h

March

Driest
66°50°
Rain
9 days
Sunshine
8.8 h
Daylight
11.9 h

April

72°57°
Rain
8 days
Sunshine
10.8 h
Daylight
13.0 h

May

79°65°
Rain
11 days
Sunshine
11.4 h
Daylight
13.9 h

June

Sunniest
84°72°
Rain
16 days
Sunshine
11.8 h
Daylight
14.4 h

July

Hottest
87°75°
Rain
20 days
Sunshine
11.4 h
Daylight
14.2 h

August

Wettest
85°74°
Rain
20 days
Sunshine
10.6 h
Daylight
13.4 h

September

82°70°
Rain
13 days
Sunshine
10.0 h
Daylight
12.3 h

October

75°61°
Rain
7 days
Sunshine
9.3 h
Daylight
11.3 h

November

66°51°
Rain
8 days
Sunshine
8.2 h
Daylight
10.4 h

December

60°46°
Rain
10 days
Sunshine
7.0 h
Daylight
9.9 h

Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December

Seasons in Myrtle Beach

Spring (March through May)

Spring settles into easy warmth here - highs near 72°F (22°C), nights near 57°F (14°C), and expect showers on roughly 28 days across the season. Daylight is generous - around 10.3 hours of sun a day.

Summer (June through August)

Summer is hot here - highs near 85°F (30°C), nights near 74°F (23°C), and rain falls on around 56 of the 90 days. Daylight is generous - around 11.3 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.

Fall (September through November)

Fall is mild and warm here - highs near 74°F (24°C), nights near 61°F (16°C), and expect showers on roughly 28 days across the season.

Winter (December through February)

Winter is crisp but comfortable here - highs near 59°F (15°C), nights near 44°F (7°C), and expect showers on roughly 28 days across the season.

Climate questions, answered

How humid does Myrtle Beach get?
Relative humidity averages 76% across the year, which reads as fairly humid. Paired with July heat, muggy afternoons are routine.
What should I pack for Myrtle Beach?
It depends on the month: July runs to 87°F (30°C) while January holds at 56°F (14°C). The full month-by-month breakdown is in the packing notes above.
How hot does Myrtle Beach get in summer?
July averages 87°F (30°C). Hot afternoons happen but extremes are not the norm.
What is the average temperature in Myrtle Beach?
66°F (19°C) across all twelve months - about 73°F (23°C) by day and 59°F (15°C) after dark.
How often does it rain in Myrtle Beach?
About 140 days bring measurable precipitation, totalling 58.5 inches (1487 mm). That works out at roughly 10.6 mm on an average wet day.

Best time to visit Myrtle Beach

February to May and October to November is the sweet spot for Myrtle Beach - warm days, manageable rainfall and plenty of daylight line up. Expect 70°F (21°C) in the afternoon and around 9 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in February.

Pack for Myrtle Beach with light clothing for the warm months, a warm jacket and layers for the cooler season, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. Note the gap between afternoon and night: July pairs 87°F (30°C) with 75°F (24°C).

Myrtle Beach temperature records (2015-2024)

Highest recorded
97°
in May
Lowest recorded
19°
in December
Annual precipitation
58.5"
Snowy days / yr
0

Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.