This page presents a long range weather forecast for Charleston in May as well as other months. You can quickly get a brief overview of the weather to expect in May on a daily basis.
The Charleston extended forecast data provided is based on the average values of previous years.
Long range weather forecast
Select a month and click on a day for more information:
Wednesday
May 1
27° / 19°
Thursday
May 2
27° / 19°
Friday
May 3
26° / 20°
Saturday
May 4
26° / 20°
Sunday
May 5
27° / 20°
Monday
May 6
27° / 20°
Tuesday
May 7
29° / 20°
Wednesday
May 8
29° / 22°
Thursday
May 9
28° / 20°
Friday
May 10
24° / 18°
Saturday
May 11
25° / 19°
Sunday
May 12
26° / 20°
Monday
May 13
23° / 19°
Tuesday
May 14
25° / 18°
Wednesday
May 15
24° / 19°
Thursday
May 16
26° / 19°
Friday
May 17
28° / 20°
Saturday
May 18
26° / 20°
Sunday
May 19
27° / 21°
Monday
May 20
29° / 21°
Tuesday
May 21
28° / 21°
Wednesday
May 22
28° / 20°
Thursday
May 23
29° / 21°
Friday
May 24
29° / 21°
Saturday
May 25
28° / 22°
Sunday
May 26
26° / 21°
Monday
May 27
28° / 21°
Tuesday
May 28
30° / 21°
Wednesday
May 29
29° / 21°
Thursday
May 30
29° / 22°
Friday
May 31
28° / 21°
Charleston 30 days weather forecast
Check out our estimated 30 days weather forecast for Charleston, this data is based on the average weather in Charleston in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Charleston next to the desired date.