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Monthly
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Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Charleston, SA
Content continues below
May
Average Temperature
High
17°
Feels 17
Low
10°
Feels 9
Average Precipitation
6 Days
Rain amount
29.5mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
14°
10
14°
11
17°
12
18°
13
16°
14
17°
15
16°
16
16°
17
14°
18
14°
19
14°
20
14°
21
15°
22
13°
23
14°
24
25
26
27
28
29
30
31
Forecast
Saturday, May 9, 2026
Day
14°
Feels 14
Wind
14 km/h S
Gust
21 km/h
Humidity
77%
P.O.P
60%
Rain
<1 mm
Night
8°
Feels 7
Wind
9 km/h SE
Gust
14 km/h
Humidity
100%
P.O.P
20%
Historical Averages
May 9
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.