Weather in Charleston in September
Charleston, United States averages a high of 25.4°C (77.7°F) and low of 15.8°C (60.4°F) in September, with 7 rain days and 10 hours of daily sunshine. Travel score: 89.3/100 (Excellent). The best time to visit Charleston is September.
High
25°C78°F
Low
16°C60°F
🌧️
7
rain days
☀️
10
hrs/day sunshine
💧
66%
humidity
89— Excellent
September in Charleston is warm and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Charleston?
How much does it rain in Charleston in September?
Charleston receives an average of 68.3mm of rainfall across 7 rainy days in September. The annual total is 1008.5mm.
What should I pack for Charleston in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 25°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to United States in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
🏛️ 121 countries·📅 Updated yearly·✈️ Free forever
Compare Charleston
Popular comparisons:
How can I plan my trip to Charleston?
What other cities are near Charleston?
What are other popular cities in United States?
What is the weather like in other months in Charleston?
Data based on 1994–2024 averages · Last updated: 2024-12-31