Climate Insights for Myrtle Beach

The climate in Myrtle Beach is warm and mild. The average annual temperature is 19°C and approximately 1373mm of precipitation falls per year. Myrtle Beach receives a notable amount of rainfall throughout the year, including during its driest month. Myrtle Beach is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, December, February, when temperatures can drop to 5°C.

Temperatures in Myrtle Beach vary considerably across the year, with a 26°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 31°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 5°C and an average of 9°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Myrtle Beach is a fairly wet location, receiving approximately 1373mm of precipitation annually, which averages out to around 114mm per month. The wettest month is August, averaging 195mm of rainfall. July and September also tend to see above-average precipitation. The driest month is November, with just 64mm. That's 131mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Myrtle Beach is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 13km/h in spring, 11km/h in summer, 12km/h in autumn.

It is currently summer in Myrtle Beach, which began on June 21, 2026. Myrtle Beach is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 31°C, while the coldest stretch bottoms out in January near 5°C. Autumn is next, beginning on September 23, 2026 (6 days from now).

The best time to visit Myrtle Beach is during April and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 74mm per month. By contrast, July can be uncomfortably hot with highs reaching 31°C, while January is the coldest period with lows dropping to 5°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Myrtle Beach based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.