Myrtle Beach Weather in June
June brings some hot weather to Myrtle Beach, South Carolina. But this month is less humid and rainy than the rest of summer.
This page gives detailed information on the typical June temperature, precipitation, sun, humidity and storms for Myrtle Beach. The temperature and rainfall numbers here are historical averages based on climate data gathered at Grand Strand Airport. The sunshine and humidity measurements are averages from Charleston International Airport.
Temperature
| 85 °F | June average high | 29 °C |
| 70 °F | June average low | 21 °C |
| 28 days | 80 °F max. or more (27 °C) |
| 13 days | 70 °F min. or less (21 °C) |
Every June day usually has a temperature of over 70 degrees Fahrenheit (21 degrees Celsius) at Myrtle Beach. The city averages 4 days this month when the thermometer reaches into the 90s °F (over 32 °C). Temperatures above 100 °F (38 °C) are not expected here during June.
The thermometer dips to 60 °F (16 °C) or below on an average of 2 nights. But June usually does not get as cold as 50 °F (10 °C).
Rain
| 4.1 in | total precipitation | 103 mm |
| 11 days | of rain |
Half the time, Myrtle Beach receives 2.6 to 4.9 inches (66 to 125 mm) of rainfall in June. One in four years has drier weather, while another one in four is wetter.
Sun
| 66 % | sunshine |
| 6 days | clear skies |
The sun's rays reach the ground in Myrtle Beach during 66 percent of daylight hours on average in June, for a total of 284 hours in the month. Typically on 6 days this month the sky is mainly clear, with at most 30 percent cloud cover.
Sunlight in June at this vacation destination averages 14 hours and 21 minutes a day. The longest days of the year, from around June 18th to 23rd, last 14 hours and 24 minutes from sunrise to sunset.
Humidity
| 75 % | June average humidity |
The relative humidity in Myrtle Beach during June usually peaks at 90 percent in the morning then drops to 58 percent by early afternoon.
| Local Time | 1 am | 4 am | 7 am | 10 am | 1 pm | 4 pm | 7 pm | 10 pm |
| Humidity % | 87 | 90 | 85 | 65 | 58 | 61 | 71 | 83 |
Storms
| 3 days | rainfall of 0.5 inches (13 mm) or more |
| 6 % | chance a named storm approaches |
There's a 6 percent probability that a named tropical storm will approach within 100 miles (165 km) of Myrtle Beach during June, and a 1 percent chance of a category 1 or 2 hurricane. Major hurricanes are unlikely this time of year.
Reference
The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals. The named storm probabilities come from the Atlantic Oceanographic and Meteorological Laboratory, Hurricane Research Division.