Weather in Charleston in May
Charleston, United States averages a high of 22.9°C (73.2°F) and low of 13°C (55.4°F) in May, with 12 rain days and 10.4 hours of daily sunshine. Travel score: 77.9/100 (Good). The best time to visit Charleston is September.
High
23°C73°F
Low
13°C55°F
🌧️
12
rain days
☀️
10.4
hrs/day sunshine
💧
69%
humidity
78— Good
May in Charleston is warm and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Charleston?
How much does it rain in Charleston in May?
Charleston receives an average of 112.2mm of rainfall across 12 rainy days in May. The annual total is 1008.5mm.
What should I pack for Charleston in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 23°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (12 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to United States in May?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31