As of 08:46 EDT

Charleston, SC weather in May

80°

Charleston, Sunday, 9 August, 08:46

Overcast. Feels like 80°. High 91°, low 75°.

Pressure30.12 inHg

Wind3 mph N

Humidity95%

Visibility6.2 mi

Dew point78°

See detailed hourly forecast

In May, Charleston, SC averages a high of 79.6° and a low of 65.7°. About 3.1 inches of precipitation fall over the month (10 wet days). The record high is 99° (2019) and the record low 48.4° (2021). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	76.5°	62.6°	23%	88.2° (1990)	48.7° (1999)
2	77.4°	62.4°	20%	87.4° (1990)	49.3° (1963)
3	77.4°	63.1°	25%	88° (1974)	51.6° (1978)
4	76.8°	62.8°	28%	89.1° (2020)	48.9° (1971)
5	77.4°	62.1°	32%	91° (2022)	52° (1997)
6	77.9°	62.4°	22%	87.3° (2014)	53.2° (2016)
7	78.1°	62.6°	23%	88.3° (1977)	49.1° (1992)
8	77.9°	63.7°	30%	89.1° (2010)	50° (1989)
9	78.1°	64.4°	30%	90° (1963)	50.5° (2022)
10	78.1°	63.7°	22%	91° (1963)	52.5° (2022)
11	78.6°	64.6°	25%	95° (2017)	52.7° (1986)
12	79.2°	64.4°	23%	90.1° (2000)	50.9° (1989)
13	79.2°	65.3°	35%	90.3° (2000)	48.4° (2021)
14	79°	65.1°	38%	88.5° (1995)	54.1° (2013)
15	79.3°	66°	33%	92.1° (1995)	53.1° (2021)
16	79.3°	65.7°	30%	93° (2025)	52.7° (2021)
17	79.7°	66.2°	42%	91.4° (1963)	53.6° (1984)
18	79.9°	66.2°	32%	90.9° (1960)	53.2° (2009)
19	79.7°	66.2°	32%	90.7° (1962)	53.2° (2002)
20	80.4°	66.9°	32%	93° (1962)	53.1° (2002)
21	80.8°	67.1°	35%	92.8° (1962)	54° (2002)
22	80.6°	67.1°	23%	91.2° (1962)	54° (1981)
23	81.1°	67.5°	42%	90.5° (2014)	56.1° (1992)
24	81.7°	67.8°	32%	94.1° (2019)	55° (1967)
25	81.7°	67.8°	37%	93.7° (2019)	54.1° (1967)
26	81.5°	68.2°	43%	96.8° (2019)	54° (1979)
27	81.5°	68.7°	43%	99° (2019)	54.3° (2023)
28	81.9°	69.3°	48%	97.2° (2019)	51.6° (1961)
29	82°	69.3°	47%	95.4° (2019)	57° (1961)
30	82°	69.1°	35%	93.9° (2019)	56.8° (1971)
31	82.8°	69.1°	40%	91.4° (2011)	55.2° (1984)