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 24.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 28.6 °C by the end of May.
The climate of Charleston in May is notably wet, with an average of 14 rainy days, and a total of 197.2 mm of precipitation.
Is May a good time to visit Charleston? check out the best time to travel to Charleston page.
✨ Is May a good time to visit Charleston? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
17
Dry days
14
Rainy days
0
Snow days
27°/20°
Temperatures
19 km/h
Avg max wind
74 %
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 |  Light rain | 23° /18° | 2.8 mm | 5 | |
| May 2 | Light rain | 24° /16° | 9.2 mm | 5 | |
| May 3 |  Partly cloudy | 24° /16° | 0 mm | 8 | |
| May 4 | Light rain | 24° /18° | 6.7 mm | 7 | |
| May 5 |  Light rain shower | 26° /18° | 1.9 mm | 8 | |
| May 6 | Patchy rain possible | 26° /19° | 1.9 mm | 8 | |
| May 7 | Light rain | 25° /20° | 5.4 mm | 6 | |
| May 8 |  Mist | 26° /19° | 0 mm | 7 | |
| May 9 | Light rain | 26° /21° | 4.4 mm | 7 | |
| May 10 | Light rain | 25° /20° | 8.5 mm | 6 | |
| May 11 |  Moderate rain | 26° /19° | 18.8 mm | 7 | |
| May 12 | Moderate rain | 23° /18° | 22.8 mm | 5 | |
| May 13 |  Heavy rain | 25° /19° | 33.7 mm | 6 | |
| May 14 | Moderate rain | 26° /19° | 22.3 mm | 7 | |
| May 15 | Patchy rain possible | 28° /18° | 0.1 mm | 8 | |
| May 16 | Patchy rain possible | 27° /20° | 0 mm | 8 | |
| May 17 | Patchy rain possible | 29° /22° | 0.3 mm | 8 | |
| May 18 | Light rain | 28° /22° | 4.7 mm | 8 | |
| May 19 | Light rain | 28° /21° | 2.5 mm | 8 | |
| May 20 | Partly cloudy | 28° /20° | 0.2 mm | 8 | |
| May 21 |  Sunny | 29° /21° | 0 mm | 7 | |
| May 22 | Sunny | 29° /21° | 0.1 mm | 8 | |
| May 23 | Light rain | 28° /22° | 3.2 mm | 7 | |
| May 24 | Light rain | 29° /22° | 3.8 mm | 6 | |
| May 25 | Moderate rain | 28° /22° | 11.3 mm | 6 | |
| May 26 | Patchy rain possible | 28° /22° | 1.8 mm | 7 | |
| May 27 |  Thundery outbreaks possible | 29° /23° | 3.8 mm | 8 | |
| May 28 | Light rain | 30° /23° | 2.8 mm | 7 | |
| May 29 | Light rain | 29° /22° | 3.6 mm | 7 | |
| May 30 | Moderate rain | 29° /22° | 11.9 mm | 8 | |
| May 31 | Light rain | 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 197.2 mm is expected in Charleston during May, occurring over more than 14 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 14 rainy days in May with a total of 197.2 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.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.