April Weather In Charleston, SC


Historic houses on a palmetto-lined street in Charleston, SC.

In terms of the weather, April is one of the best months to visit Charleston. The weather is usually warm, without the excessive heat of summer, and most days bring at least some sun, with few periods of cloudy weather.

A typical April day enjoys highs in the 70s or early 80s, clear and sunny or with a mix of sunny and cloudy spells. The weather is generally perfect for outdoor sightseeing, or for visiting the area’s lowcountry sights, for outdoor dining or picnics, or indeed any of the activities which Charleston offers.

Consult the weather forecast before traveling, but in general an April vacation in Charleston requires mostly warm-weather clothing, with an additional layer and a light jacket for cooler days and evenings. On the hottest days, you may wish to visit the beach, although most will find the water to still be too cold for swimming.

High-factor sunscreen is a must for April visits to Charleston and its vicinity, as is insect repellent if you expect to spend any time in nature. Although it rains less in April than in other months, rain is still a definite possibility and an umbrella is advised.

See also:
April festivals and events
Visiting Charleston in the spring
Music festivals in Charleston and the lowcountry
Things to do during your visit to Charleston
– Charleston’s weather by month: January, February, March, May, June, July, August, September, October, November or December

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Temperature & Humidity

Temperature

The daily maximum temperature in Charleston in April averages 76°F (25°C), with the lowest daily highs being around 60-63°F (15-17°C), up to around 88°F (31°C) on the hottest days.

In an average year, you can expect the temperature to exceed 80°F (27°C) on at least 10-15 days each month, and to stay below around 65 °F (18°C) on only a couple of days.

In the morning, temperatures could be as low as 55°F (13°C) on the coolest days, or up to 80°F (27°C) or so on warmer days. Evening temperatures are generally close to morning temperatures, sometimes a few degrees to either side depending on the weather that day. Typical overnight lows at this time of year are in the range of 50-75°F (10-24°C).

Humidity

By April, the weather is beginning to feel more humid, with conditions being either humid or very humid about 40 percent of the time.

Sea Temperature

Surface water temperature in April at the beaches near Charleston is around 65-70°F (17-23°C): acceptable for people who don’t mind a bracing swim, but still too cold for most except on the warmest days.

Sunshine, Clouds & Rain

The average April in Charleston has 9 hours of sunshine each day. Rainfall for the month totals an average of 2.9 inches, with rain occurring on an average of 7-8 days.

Most days throughout April in Charleston bring at least some sun: between a third and a half of days this month are sunny all day, with about as many days again bringing a mix of sunny spells and clouds. You can expect only a handful of days in the average April to be overcast or rainy for most of the day.

The average UV index in Charleston in April is 9.

Wind speeds in Charleston in April average roughly 10mph, with 1 day each month still or mostly still, and 8-12 days on average where wind speeds may reach around 15mph or higher.

Daylight Hours

Sunrise

In April, the sun rises at around 7:10am at the beginning of the month and at 6:35am at the end of the month. It begins to get light in the morning at 6:40am at the start of the month, and by 6:05am at the end.

Sunset

The sun sets at around 7:40pm at the start of the month, and at around 8pm by its end. It should be dark by around 8:05pm at the beginning of the month, and by 8:30pm at its end.

Day Length

The amount of full daylight in April averages around 13 hours per day, plus 25-30 minutes of low light at the beginning and then again at the end of the day.