Places › Charleston, SC › May
Charleston in May
One of the best months — score 94 of 100
Typical May days in Charleston reach about 79°F with nights near 68°F.
Avg high
79°F
1991–2020 normal
Avg low
68°F
1991–2020 normal
Rain total
2.58 in
in a typical May
Rain days
7
days with at least 0.01 in
Daylight
13h 49m
at mid-May, computed
What to pack for Charleston in May
- A compact rain layer — about 7 days see rain in a typical May.
Every packing line is triggered by a number on this page — the rules are on How we pick.
May vs. the alternatives
The whole year in Charleston
JAN
58°F
Rain 8 days
Daylight 10h 12mFEB
60°F
Rain 8 days
Daylight 10h 58mMAR
66°F
★ Best
Rain 8 days
Daylight 11h 53mAPR
72°F
★ Best
Rain 7 days
Daylight 12h 57mMAY
79°F
Rain 7 days
Daylight 13h 49mJUN
84°F
Rain 10 days
Daylight 14h 18mJUL
88°F
Rain 12 days
Daylight 14h 07mAUG
86°F
Rain 12 days
Daylight 13h 21mSEP
83°F
Rain 9 days
Daylight 12h 20mOCT
76°F
Rain 7 days
Daylight 11h 19mNOV
67°F
★ Best
Rain 6 days
Daylight 10h 26mDEC
61°F
Rain 8 days
Daylight 10h 00m
58°F
Rain 8 days
Daylight 10h 12mFEB
60°F
Rain 8 days
Daylight 10h 58mMAR
66°F
★ Best
Rain 8 days
Daylight 11h 53mAPR
72°F
★ Best
Rain 7 days
Daylight 12h 57mMAY
79°F
Rain 7 days
Daylight 13h 49mJUN
84°F
Rain 10 days
Daylight 14h 18mJUL
88°F
Rain 12 days
Daylight 14h 07mAUG
86°F
Rain 12 days
Daylight 13h 21mSEP
83°F
Rain 9 days
Daylight 12h 20mOCT
76°F
Rain 7 days
Daylight 11h 19mNOV
67°F
★ Best
Rain 6 days
Daylight 10h 26mDEC
61°F
Rain 8 days
Daylight 10h 00m
Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month.