Myrtle Beach Weather in April
April brings the sunniest weather of the year to Myrtle Beach, South Carolina. This is also a month of pleasant temperatures and little rainfall for the vacation destination.
This page gives detailed information on the typical April temperature, precipitation, sun and humidity 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
| 72 °F | April average high | 22 °C |
| 53 °F | April average low | 12 °C |
| 21 days | 70 °F max. or more (21 °C) |
| 11 days | 50 °F min. or less (10 °C) |
The temperature rises nearly every day during April to over 60 degrees Fahrenheit (16 degrees Celsius) in Myrtle Beach. The city averages 2 days this month when the thermometer reaches into the 80s °F (over 27 °C). Temperatures above 90 °F (32 °C) occur only rarely here during April.
The thermometer dips to 40 °F (4 °C) or below on an average of 2 nights. But most years April does not get cold enough for frost.
Rain
| 2.8 in | total precipitation | 70 mm |
| 8 days | of rain |
Half the time, Myrtle Beach receives 1.2 to 3.7 inches (31 to 95 mm) of rainfall in April. One in four years has drier weather, while another one in four is wetter.
Sun
| 72 % | sunshine |
| 11 days | clear skies |
The sun's rays reach the ground in Myrtle Beach during 72 percent of daylight hours on average in April, for a total of 282 hours in the month. Typically on 11 days this month the sky is mainly clear, with at most 30 percent cloud cover. April is the sunniest month for this vacation destination.
Sunlight in April at the seaside city lasts for 13 hours and 2 minutes a day on average. The shortest day of the month is the 1st with 12 hours and 34 minutes of daylight. By the end of the month, the days have lengthened to 13:31 from sunrise to sunset. These durations can vary by a minute or two from year to year.
Humidity
| 68 % | April average humidity |
The relative humidity in Myrtle Beach during April usually peaks at 84 percent in the morning then drops to 47 percent by early afternoon.
| Local Time | 1 am | 4 am | 7 am | 10 am | 1 pm | 4 pm | 7 pm | 10 pm |
| Humidity % | 81 | 84 | 83 | 57 | 47 | 49 | 62 | 77 |
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.