Measured, not vibes
Best Time to Visit Charleston
By measured weather comfort, the top months for Charleston are October, April, November — and RouteVerdict's editorial pick, which also weighs crowds and prices, is March, April, May, October, November. The table below is computed from ERA5 reanalysis data for 2020–2024, measured at Charleston (6 m elevation).
Month by month
Charleston weather and comfort, 2020–2024
| Month | Avg high | Wet days | Comfort | Season |
|---|---|---|---|---|
| January | 15.3°C / 60°F | 8.5 | 58 | |
| February | 16.8°C / 62°F | 8.5 | 66 | Shoulder |
| March | 20.2°C / 68°F | 8 | 80 | |
| April | 23.3°C / 74°F | 6 | 88 | Best |
| May | 26.4°C / 80°F | 9.8 | 75 | |
| June | 29.1°C / 84°F | 13.7 | 58 | |
| July | 30.8°C / 87°F | 15 | 48 | |
| August | 29.9°C / 86°F | 16.2 | 50 | |
| September | 27.9°C / 82°F | 11.8 | 66 | Shoulder |
| October | 24.4°C / 76°F | 5 | 89 | Best |
| November | 20.2°C / 68°F | 7.3 | 81 | Best |
| December | 16.3°C / 61°F | 7.2 | 65 |
Comfort is RouteVerdict's 0–100 score: 100·exp(−(high−23)²/162) × (1 − min(0.35, wet days × 0.02)). The full method is on the methodology page. Weather data by Open-Meteo.com (ERA5, CC BY 4.0), 2020–2024 normals. Wet day = ≥1 mm precipitation.
FAQ
Charleston timing questions
What is the best month to visit Charleston?
By measured weather comfort (ERA5 2020–2024), the top months are October, April, and November, with October scoring highest. RouteVerdict's editorial pick is March, April, May, October, and November, which also weighs crowds, prices, and events.
What is the hottest month in Charleston?
July, with an average daily high of 30.8°C (87°F).
What is the rainiest month in Charleston?
August, averaging 16.2 days with at least 1 mm of precipitation.
When is shoulder season in Charleston?
September and February — the best-scoring months outside both the measured top three and RouteVerdict's editorial peak-season pick.