Charleston (SC)
May
Weather in Charleston, South Carolina for May 2027
Your guide to Charleston weather in May - trends and predictions
In general, the average temperature in Charleston at the beginning of May is 24.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 29 °C by the end of May.
Charleston experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 198.6 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
10
Dry days
21
Rainy days
0
Snow days
27°/20°
Temperatures
19 km/h
Avg max wind
73 %
Avg humidity
Charleston Weather May
Move between months or click on a day
Temperatures trend during May in Charleston
See the weather trend as well as the moving average line
May weather in Charleston day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 24° /18° | 2.8 mm | 5 | |
| May 2 |  Partly cloudy | 24° /16° | 9.2 mm | 5 | |
| May 3 | Partly cloudy | 24° /16° | 0 mm | 8 | |
| May 4 | Light rain shower | 24° /18° | 6.7 mm | 7 | |
| May 5 | Light rain shower | 26° /18° | 1.9 mm | 8 | |
| May 6 | Partly cloudy | 26° /19° | 1.9 mm | 8 | |
| May 7 | Patchy rain possible | 25° /20° | 5.4 mm | 6 | |
| May 8 |  Mist | 26° /18° | 0 mm | 7 | |
| May 9 |  Heavy rain at times | 26° /20° | 4.4 mm | 7 | |
| May 10 | Light rain shower | 25° /19° | 8.5 mm | 6 | |
| May 11 |  Moderate or heavy rain shower | 26° /18° | 18.8 mm | 7 | |
| May 12 |  Sunny | 24° /18° | 22.8 mm | 5 | |
| May 13 |  Patchy light drizzle | 26° /19° | 33.7 mm | 6 | |
| May 14 | Light rain shower | 26° /19° | 22.3 mm | 7 | |
| May 15 | Patchy rain possible | 28° /18° | 0.1 mm | 8 | |
| May 16 | Patchy rain possible | 28° /20° | 0 mm | 8 | |
| May 17 | Patchy rain possible | 29° /21° | 0.3 mm | 8 | |
| May 18 | Light rain shower | 29° /21° | 4.7 mm | 8 | |
| May 19 | Light rain shower | 29° /20° | 2.5 mm | 8 | |
| May 20 | Partly cloudy | 28° /20° | 0.2 mm | 8 | |
| May 21 | Sunny | 29° /20° | 0 mm | 7 | |
| May 22 | Sunny | 29° /21° | 0.1 mm | 8 | |
| May 23 | Partly cloudy | 28° /22° | 3.2 mm | 7 | |
| May 24 | Patchy light rain | 29° /22° | 3.8 mm | 6 | |
| May 25 | Patchy rain possible | 28° /22° | 11.3 mm | 6 | |
| May 26 | Partly cloudy | 29° /22° | 1.8 mm | 7 | |
| May 27 |  Thundery outbreaks possible | 29° /23° | 3.8 mm | 8 | |
| May 28 | Sunny | 31° /23° | 2.8 mm | 7 | |
| May 29 | Sunny | 29° /22° | 3.6 mm | 7 | |
| May 30 | Sunny | 29° /22° | 11.9 mm | 8 | |
| May 31 | Sunny | 28° /20° | 8.5 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Charleston in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Charleston forecast closer to your planned date for the most up-to-date weather information.
Change Month
Charleston in May - FAQ
What are the expected maximum and minimum temperatures in Charleston during May?
During May, expect a variety of temperatures with highs around 27° and lows near 20°, suitable for diverse activities and preferences.
How much rainfall should be expected in Charleston during May?
Significant rainfall exceeding 198.6 mm is expected in Charleston during May, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Charleston during May?
The average wind speed in Charleston during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Charleston
Explore the daily rainfall trends and prepare for Charlestons May weather 💧
Typically, Charleston has 21 rainy days in May with a total of 198.6 mm of rainfall.
UV exposure in Charleston during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Quick links
More Charleston weather pages
You are here
Where is Charleston?Get accurate weather forecasts for Charleston, located at latitude 32.777 and longitude -79.931. Stay updated with localized weather information tailored for Charleston.
Found a mistake?
We appreciate your attention to details. Tell us here.