Charleston has a warm climate. In January the average temperature is 55 degrees F; in July, the average is 82 degrees. Humidity averages 86 percent; rainfall, 52 inches per year. The first frost typically occurs around December 10; the last usually occurs in mid-February.
| High | Low | Water | High | Light | Water | ||
| Jan |
57 |
40 |
48 |
Jul |
88 |
74 |
82 |
| Feb |
59 |
41 |
50 |
Aug |
88 |
74 |
82 |
| Mar |
65 |
48 |
55 |
Sep |
84 |
69 |
75 |
| Apr |
73 |
56 |
60 |
Oct |
77 |
59 |
65 |
| May |
81 |
64 |
63 |
Nov |
68 |
49 |
55 |
| Jun |
86 |
70 |
72 |
Dec |
60 |
42 |
46 |
Average Daily Temperature: Warm Season 85 Cool Season 60 Average Humidity (6 a.m.) 86
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Charming Inns of CharlestonĀ® | Fulton Lane Inn, 202 King Street, Charleston, SC 29401, 800-720-2688