Charleston
May
Weather in Charleston for May 2025
Your guide to Charleston weather in May - trends and predictions
In general, the average temperature in Charleston at the beginning of May is 25.7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 29.9 °F by the end of May.
The climate of Charleston in May is notably wet, with an average of 12 rainy days, and a total of 117.5 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
12
Rainy days
0
Snow days
27°/20°
Temperatures
19 km/h
Avg max wind
72 %
Avg humidity
Charleston in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2  26° | 3  26° | 4 23° | |||
| 5 26° | 6  26° | 7 27° | 8  29° | 9 31° | 10 26° | 11 24° |
| 12 26° | 13 25° | 14 24° | 15 29° | 16 26° | 17 27° | 18 27° |
| 19 24° | 20 24° | 21 25° | 22 27° | 23 28° | 24 29° | 25 31° |
| 26 30° | 27  30° | 28 32° | 29 30° | 30 28° | 31 28° |
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Temperatures trend during May in Charleston
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 | Patchy rain possible | 26° /20° | 2.5 mm | 6 | |
| May 2 | Partly cloudy | 26° /19° | 0 mm | 7 | |
| May 3 | Sunny | 26° /19° | 0 mm | 7 | |
| May 4 | Light rain shower | 23° /20° | 2.9 mm | 5 | |
| May 5 | Light rain shower | 26° /20° | 3.9 mm | 6 | |
| May 6 | Patchy light rain | 26° /20° | 5.8 mm | 6 | |
| May 7 | Patchy rain possible | 27° /21° | 0.3 mm | 6 | |
| May 8 | Mist | 29° /22° | 0 mm | 6 | |
| May 9 | Sunny | 31° /23° | 3.7 mm | 8 | |
| May 10 | Light rain shower | 26° /20° | 2.8 mm | 6 | |
| May 11 | Sunny | 24° /15° | 0 mm | 6 | |
| May 12 | Sunny | 26° /15° | 0 mm | 7 | |
| May 13 | Patchy light drizzle | 25° /19° | 0.9 mm | 6 | |
| May 14 | Light rain shower | 24° /19° | 67 mm | 5 | |
| May 15 | Patchy rain possible | 29° /20° | 0.4 mm | 6 | |
| May 16 | Patchy rain possible | 26° /19° | 0.1 mm | 6 | |
| May 17 | Patchy rain possible | 27° /20° | 0.1 mm | 6 | |
| May 18 | Light rain shower | 27° /20° | 14.2 mm | 6 | |
| May 19 | Light rain shower | 24° /19° | 7.4 mm | 5 | |
| May 20 | Partly cloudy | 24° /18° | 0.6 mm | 6 | |
| May 21 | Sunny | 25° /18° | 0 mm | 7 | |
| May 22 | Sunny | 27° /19° | 0 mm | 7 | |
| May 23 | Partly cloudy | 28° /21° | 0 mm | 7 | |
| May 24 | Patchy light rain | 29° /22° | 2.6 mm | 6 | |
| May 25 | Patchy rain possible | 31° /21° | 0.4 mm | 7 | |
| May 26 | Partly cloudy | 30° /21° | 0.2 mm | 8 | |
| May 27 | Thundery outbreaks possible | 30° /24° | 0.3 mm | 7 | |
| May 28 | Sunny | 32° /22° | 1.2 mm | 8 | |
| May 29 | Sunny | 30° /21° | 0 mm | 8 | |
| May 30 | Sunny | 28° /19° | 0 mm | 7 | |
| May 31 | Sunny | 28° /19° | 0 mm | 7 | |
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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.
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 117.5 mm is expected in Charleston during May, occurring over more than 12 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 💧
UV exposure in Charleston during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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