Flights to Charleston, SC, United States

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Weather in Charleston

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January14°C7°C
February16°C9°C
March19°C11°C
April22°C15°C
May26°C19°C
June29°C23°C
July31°C25°C
August30°C25°C
September28°C22°C
October24°C17°C
November19°C12°C
December16°C9°C
Hottest Month
31°C
July
Coldest month
7°C
January
Sunny days
259
days per year

14 day forecast

Saturday
17 May
36°C25°C
24 May
25°C18°C
Sunday
18 May
31°C21°C
25 May
64%
28°C21°C
Monday
19 May
36°C23°C
26 May
85%
30°C22°C
Tuesday
20 May
34°C23°C
27 May
77%
25°C19°C
Wednesday
21 May
88%
31°C24°C
28 May
25°C18°C
Thursday
22 May
28°C19°C
29 May
26°C20°C
Friday
23 May
25°C17°C
30 May
89%
22°C21°C

Cheapest month to fly to Charleston

Explore price trends for trips to Charleston

Annual Avg. Price376 GBP
June 2025237 GBP
July 2025353 GBP
August 2025245 GBP
September 2025237 GBP
October 2025303 GBP
November 2025300 GBP
December 2025315 GBP
January 2026279 GBP
February 2026284 GBP
March 2026300 GBP
April 2026459 GBP
May 20261204 GBP

Frequently asked questions

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