Charleston in July
In July, Charleston averages 31°C (88°F) during the day and 25°C (77°F) at night, with frequent rain — about 25 days of the month see precipitation (118 mm total).
High seasonConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
July is one of the wetter and less comfortable months in Charleston. If your dates are flexible, consider a different time of year.
How July compares to the rest of the year in Charleston
July is one of the warmest months in Charleston (1st of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 8°C above the annual average (23°C). July runs 2°C warmer than June (29°C) and cools 1°C in August (30°C).
July sunrise & sunset in Charleston
Times shown for Charleston local time (America/New_York), calculated for the 15th of July. They shift by a few minutes day to day across the month.
Photography light in Charleston — July
Golden-hour and blue-hour windows for the 15th of July, in Charleston's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Charleston in July
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on July's tier (High season) and Charleston's popularity.
Crowds & pricing — July in Charleston
This is a busy month in Charleston — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: Northern Hemisphere summer holidays
Sun & mosquito risk — July in Charleston
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Charleston in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 14°C / 58°F | 6°C / 44°F | 78 mm | 12 | — |
| February | 17°C / 62°F | 9°C / 48°F | 77 mm | 13 | — |
| March | 19°C / 67°F | 11°C / 53°F | 78 mm | 14 | — |
| April | 23°C / 73°F | 15°C / 59°F | 116 mm | 13 | — |
| May | 27°C / 80°F | 20°C / 67°F | 84 mm | 16 | — |
| June | 29°C / 85°F | 23°C / 74°F | 129 mm | 22 | — |
| July | 31°C / 88°F | 25°C / 77°F | 118 mm | 25 | — |
| August | 30°C / 86°F | 25°C / 76°F | 170 mm | 26 | — |
| September | 28°C / 82°F | 22°C / 72°F | 157 mm | 21 | — |
| October | 24°C / 76°F | 17°C / 63°F | 94 mm | 13 | — |
| November | 19°C / 66°F | 11°C / 52°F | 85 mm | 12 | — |
| December | 17°C / 62°F | 9°C / 49°F | 122 mm | 12 | — |
Other cities with similar July weather
🌍 See the full ranked list of climate twins for Charleston in July →
Frequently asked questions
How hot is Charleston in July?
In July, Charleston averages a high of 31°C (88°F) and a low of 25°C (77°F) — generally hot.
Does it rain a lot in Charleston in July?
July is quite rainy in Charleston, with about 25 rainy days on average.
Is July a good time to visit Charleston?
July is hot but on the rainy side. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Charleston in July?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full July packing list for Charleston for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.