Weather in Charleston

• All Year
• Spring
• Summer
• Autumn
• Winter

Yearly weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

• Charleston experiences comfortable temperatures for a significant portion of the year, particularly from April to October.

• July and August see temperatures reaching discomfort levels above 30°C.

• The remaining months, from November to March, have temperatures that are cooler but still generally above discomfort levels.

Conditions

• In Charleston, South Carolina, total sun hours peak in April at 7.5 hours and show a gradual decline in the summer months, with notable increases again during the fall.

• Precipitation levels tend to rise significantly in the summer, particularly in July and August, with July recording the highest rainfall at 6.65 mm, contrasting with the relatively low precipitation levels in January and October.

• Overall, Charleston experiences a trend of more sunshine in the spring and fall, while summer is marked by both increased cloud cover and precipitation.

Astronomy

• In Charleston, South Carolina, the sunrise times vary significantly throughout the year, with the earliest occurring in June at 06:11 and the latest at 07:25 in October.

• Conversely, the sunset times exhibit a more pronounced shift, ranging from the latest at 20:28 in June to the earliest at 17:16 in December, resulting in the shortest day length of only 10:01 in December compared to the longest day length of 14:17 in June.

• This indicates that summer days in Charleston are considerably longer with extended daylight hours, while winter months experience shorter days and later sunrises.