Myrtle Beach, South Carolina weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Excellent
Best time to visit: May – October
What is the weather like in Myrtle Beach, South Carolina in May?
In May, Myrtle Beach, South Carolina is warm: daytime highs average 26 °C, and nights cool down to about 19 °C. The sea averages 22.3 °C – refreshing for a swim. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 91 mm in total. All in all, May is an excellent month for a holiday in Myrtle Beach, South Carolina.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 13 h 53 min06:15 – 20:08
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 15 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 52 %on averageAll months
- Hot days
- 2 days30 °C or moreAll months
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %76 %
- Sunshineweight 20 %80 %
- Few rainy daysweight 20 %53 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in May
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Rain jacket or umbrella
Myrtle Beach, South Carolina in May: quick answers
Is Myrtle Beach, South Carolina hot in May?
Warm rather than hot: in May, daytime highs in Myrtle Beach, South Carolina average 26 °C and nights cool to about 19 °C. On about 2 days the thermometer climbs to 30 °C or more.
Can you swim in Myrtle Beach, South Carolina in May?
Yes. In May the sea averages 22.3 °C – refreshing for a swim.
Does it rain much in Myrtle Beach, South Carolina in May?
Rain is frequent, with about 11 rainy days and 91 mm in total.
Myrtle Beach, South Carolina month by month
The whole year in Myrtle Beach, South CarolinaAll destinations: USAWhere to go in MaySea temperature in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences