Myrtle Beach weather in August
August in Myrtle Beach: sweltering, soaked, with very humid — a great time to visit.
#7 of 12 months in Myrtle Beach · #324 of 604 destinations to visit in August · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Myrtle Beach climate normals — August
| Daytime high | 30°C / 85°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 24°C / 76°F | |
| Feels like (high) | 35°C / 95°F | |
| Rainfall | 202 mm / 7.9 in | ⛈ soaked |
| Rainy days | 21 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 10.3 h/day | |
| Daylight | 13.4 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 64 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Myrtle Beach in August — FAQ
- Is August a good time to visit Myrtle Beach?
- August in Myrtle Beach: sweltering, soaked, with very humid — a great time to visit. It ranks #7 of 12 months for Myrtle Beach on SeasonMap's comfort score (78/100).
- What is the weather like in Myrtle Beach in August?
- In August, Myrtle Beach averages a daily high of 29.6°C and a low of 24.4°C, with about 201.9 mm of rain over roughly 21.2 rainy days.
- What is the air quality in Myrtle Beach in August?
- Myrtle Beach has a mean US Air Quality Index of about 64 in August.