Myrtle Beach, SC Climate & Monthly Averages
Myrtle Beach has a humid subtropical climate. July is the hottest month, averaging 87° by day; January is the coldest at 56°.
Sunshine is a defining feature of Myrtle Beach's climate
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).
How sun, temperature and rain fit together
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.
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.
More climate facts for Myrtle Beach
- 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%
The most comfortable sunny-weather window
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.
What to pack
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).
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| 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
Each card shows the average high and low. The bar places that month between Myrtle Beach's coldest night and warmest afternoon.
January
- Rain
- 9 days
- Sunshine
- 7.5 h
- Daylight
- 10.1 h
February
- Rain
- 9 days
- Sunshine
- 7.9 h
- Daylight
- 10.9 h
March
- Rain
- 9 days
- Sunshine
- 8.8 h
- Daylight
- 11.9 h
April
- Rain
- 8 days
- Sunshine
- 10.8 h
- Daylight
- 13.0 h
May
- Rain
- 11 days
- Sunshine
- 11.4 h
- Daylight
- 13.9 h
June
- Rain
- 16 days
- Sunshine
- 11.8 h
- Daylight
- 14.4 h
July
- Rain
- 20 days
- Sunshine
- 11.4 h
- Daylight
- 14.2 h
August
- Rain
- 20 days
- Sunshine
- 10.6 h
- Daylight
- 13.4 h
September
- Rain
- 13 days
- Sunshine
- 10.0 h
- Daylight
- 12.3 h
October
- Rain
- 7 days
- Sunshine
- 9.3 h
- Daylight
- 11.3 h
November
- Rain
- 8 days
- Sunshine
- 8.2 h
- Daylight
- 10.4 h
December
- Rain
- 10 days
- Sunshine
- 7.0 h
- Daylight
- 9.9 h
Looking for warmer alternatives? Browse warm places by month, or compare Myrtle Beach's coolest part of the year: January, December, February.
Seasonal weather under Myrtle Beach's sunnier skies
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.
How unusual is Myrtle Beach?
- 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.
These comparisons use the same ten-year window for every city in the dataset.
Myrtle Beach temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.