As of 10:32 EDT

Charleston, SC weather in August

85°

Charleston, Sunday, 9 August, 10:32

Mostly clear. Feels like 97°. High 89°, low 75°.

Pressure30.12 inHg

Wind2 mph NW

Humidity82%

Visibility6.2 mi

Dew point79°

See detailed hourly forecast

In August, Charleston, SC averages a high of 85.6° and a low of 75.1°. About 6.7 inches of precipitation fall over the month (19 wet days). The record high is 97.9° (1999) and the record low 63.3° (1986). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	86.7°	76.1°	73%	97.9° (1999)	68.7° (1966)
2	86°	75.7°	67%	95.4° (1980)	69.4° (1966)
3	85.8°	75.6°	65%	95.2° (2006)	68.5° (2025)
4	86°	75.4°	72%	95.7° (2011)	68° (1976)
5	86.4°	75.6°	57%	93.6° (2008)	69.1° (2021)
6	86.4°	75.7°	60%	95.9° (1989)	67.5° (1976)
7	86.5°	75.7°	63%	95.4° (1968)	66° (2004)
8	86.5°	75.4°	72%	97.9° (2011)	65.7° (2004)
9	86°	75.4°	58%	97° (2011)	67.5° (1989)
10	86.4°	75.4°	55%	95.5° (2019)	67.1° (1989)
11	86.2°	75.6°	62%	94.6° (2007)	66.4° (1989)
12	85.8°	75.2°	78%	92.5° (1999)	67.3° (1967)
13	84.9°	74.8°	63%	93.6° (2023)	64.4° (1967)
14	85.1°	75°	60%	95.5° (1995)	65.1° (1967)
15	85.3°	74.8°	62%	92.1° (1984)	66.2° (1967)
16	86°	75.2°	55%	93.6° (1995)	67.1° (1967)
17	86.2°	75.6°	63%	93.6° (1995)	70° (2022)
18	86.7°	75.4°	63%	95.4° (1995)	66° (1979)
19	86.4°	75.7°	70%	95.2° (1983)	68.2° (1960)
20	86.2°	75.7°	68%	94.6° (1983)	68.7° (1981)
21	86°	75.4°	55%	96.3° (1983)	65.7° (1961)
22	85.3°	75°	63%	94.8° (1968)	66.2° (1981)
23	84.9°	74.7°	65%	95.5° (1968)	66.9° (1981)
24	84.4°	74.7°	70%	95.7° (1968)	68.9° (1981)
25	84.2°	73.9°	60%	95° (1968)	66.4° (1981)
26	84.6°	74.1°	58%	91.4° (1965)	65.5° (1994)
27	84.9°	74.3°	62%	94.6° (2011)	65.7° (1966)
28	84.7°	74.5°	65%	91° (1998)	64.9° (1968)
29	84.4°	74.3°	48%	91.4° (1983)	63.3° (1986)
30	84°	74.3°	62%	92.7° (1998)	65.3° (1986)
31	84.2°	73.9°	52%	90.9° (1970)	64.2° (1999)