April Weather in Charleston

Last updated: March 2, 2024

The weather in Charleston, United States, during April is characterized by an average temperature of 13°C (56°F). Highs can soar to 29°C (85°F), while lows may dip to -2°C (29°F). Typically, the humidity level in Charleston throughout April hovers around 86%.

-2°C (29°F)

Minimum temperature

13°C (56°F)

Average temperature

29°C (85°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In April, Charleston averages 134 mm (5.3 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 13 hours 13 minutes of daylight, with the sun shining for approximately 8 hours 4 minutes each day. Additionally, there is a 50% probability of sunny days during this period.

134 mm (5.3 inches)

Precipitation

14 rainy days

Rainy days

8 hours 4 minutes

Sunshine hours

50%

Chance of sun

UV Index

In April, the UV Index in Charleston reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 2 4 6 8 9 9 7 5 3 2 1
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

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