South Carolina (Charleston)
May
Weather in South Carolina for May 2026
Your guide to South Carolina weather in May - trends and predictions
In general, the average temperature in South Carolina at the beginning of May is 26.1 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 29.1 °F by the end of May.
South Carolina in May brings notable rainfall, with an average of 20 rainy days and a total precipitation of 223.3 mm.
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Temperatures
Rain 🌧️
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11
Dry days
20
Rainy days
0
Snow days
28°/21°
Temperatures
19 km/h
Avg max wind
73 %
Avg humidity
South Carolina Weather May
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What’s the Weather Like in South Carolina This May?
Discover the average temperatures and weather trends across South Carolina’s cities this May.
Temperatures trend during May in South Carolina
See the weather trend as well as the moving average line
May weather in South Carolina day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 26° /19° | 1.3 mm | 6 | |
| May 2 |  Partly cloudy | 27° /19° | 0 mm | 7 | |
| May 3 |  Sunny | 26° /19° | 0 mm | 7 | |
| May 4 | Light rain shower | 25° /20° | 10 mm | 6 | |
| May 5 | Light rain shower | 27° /19° | 2.9 mm | 6 | |
| May 6 |  Patchy light rain | 26° /20° | 2.9 mm | 7 | |
| May 7 | Patchy rain possible | 26° /19° | 1.9 mm | 6 | |
| May 8 |  Mist | 28° /20° | 0 mm | 6 | |
| May 9 | Sunny | 28° /21° | 4.6 mm | 7 | |
| May 10 | Light rain shower | 24° /19° | 9.6 mm | 6 | |
| May 11 | Sunny | 25° /18° | 19.6 mm | 6 | |
| May 12 | Sunny | 25° /18° | 34.2 mm | 6 | |
| May 13 | Patchy light drizzle | 26° /20° | 42.1 mm | 6 | |
| May 14 | Light rain shower | 26° /20° | 33.5 mm | 6 | |
| May 15 | Patchy rain possible | 30° /21° | 0.2 mm | 7 | |
| May 16 | Patchy rain possible | 28° /21° | 0 mm | 7 | |
| May 17 | Patchy rain possible | 30° /22° | 0.1 mm | 7 | |
| May 18 | Light rain shower | 30° /22° | 7.1 mm | 7 | |
| May 19 | Light rain shower | 29° /21° | 3.7 mm | 6 | |
| May 20 | Partly cloudy | 28° /20° | 0.3 mm | 7 | |
| May 21 | Sunny | 29° /20° | 0 mm | 7 | |
| May 22 | Sunny | 30° /21° | 0 mm | 7 | |
| May 23 | Partly cloudy | 29° /22° | 2.9 mm | 7 | |
| May 24 | Patchy light rain | 29° /21° | 1.3 mm | 6 | |
| May 25 | Patchy rain possible | 28° /21° | 15.7 mm | 6 | |
| May 26 | Partly cloudy | 28° /21° | 0.1 mm | 7 | |
| May 27 |  Thundery outbreaks possible | 29° /23° | 4.8 mm | 7 | |
| May 28 | Sunny | 31° /23° | 3.6 mm | 7 | |
| May 29 | Sunny | 30° /22° | 0 mm | 8 | |
| May 30 | Sunny | 29° /21° | 10.7 mm | 7 | |
| May 31 | Sunny | 29° /19° | 10.4 mm | 8 | |
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Important Notice
Our weather forecast for South Carolina 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 South Carolina forecast closer to your planned date for the most up-to-date weather information.
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South Carolina in May - FAQ
What are the expected maximum and minimum temperatures in South Carolina during May?
During May, expect a variety of temperatures with highs around 28° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in South Carolina during May?
Significant rainfall exceeding 223.3 mm is expected in South Carolina during May, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in South Carolina during May?
The average wind speed in South Carolina during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in South Carolina
Explore the daily rainfall trends and prepare for South Carolinas May weather 💧
UV exposure in South Carolina during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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