Myrtle Beach weather in December
December in Myrtle Beach: cool, rainy, with clean air — a good time to visit.
#11 of 12 months in Myrtle Beach · #407 of 604 destinations to visit in December · comfort 61/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Myrtle Beach climate normals — December
| Daytime high | 16°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 9°C / 48°F | |
| Feels like (high) | 14°C / 57°F | |
| Rainfall | 102 mm / 4 in | 🌧 rainy |
| Rainy days | 10 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 6°C / 43°F | |
| Sunshine | 6.8 h/day | |
| Daylight | 10 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Myrtle Beach in December — FAQ
- Is December a good time to visit Myrtle Beach?
- December in Myrtle Beach: cool, rainy, with clean air — a good time to visit. It ranks #11 of 12 months for Myrtle Beach on SeasonMap's comfort score (61/100).
- What is the weather like in Myrtle Beach in December?
- In December, Myrtle Beach averages a daily high of 15.8°C and a low of 8.9°C, with about 102 mm of rain over roughly 9.6 rainy days.
- What is the air quality in Myrtle Beach in December?
- Myrtle Beach has a mean US Air Quality Index of about 35 in December.