Charleston (WV)
May
Weather in Charleston, West Virginia for May 2026
Your guide to Charleston weather in May - trends and predictions
In general, the average temperature in Charleston at the beginning of May is 21.7 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 18.7 °F by the end of May.
Charleston in May brings notable rainfall, with an average of 19 rainy days and a total precipitation of 241 mm.
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Temperatures
Rain 🌧️
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12
Dry days
19
Rainy days
0
Snow days
21°/13°
Temperatures
16 km/h
Avg max wind
74 %
Avg humidity
Charleston Weather May
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Temperatures trend during May in Charleston
See the weather trend as well as the moving average line
May weather in Charleston day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 29° /17° | 3.6 mm | 6 | |
| May 2 |  Moderate or heavy rain shower | 25° /16° | 3.1 mm | 6 | |
| May 3 | Moderate rain at times | 21° /15° | 7.1 mm | 5 | |
| May 4 |  Heavy rain at times | 21° /13° | 2.4 mm | 5 | |
| May 5 | Moderate rain at times | 17° /10° | 2 mm | 4 | |
| May 6 | Patchy rain possible | 18° /9° | 0.2 mm | 4 | |
| May 7 |  Overcast | 21° /12° | 0 mm | 5 | |
| May 8 | Moderate or heavy rain shower | 20° /13° | 10.9 mm | 5 | |
| May 9 | Overcast | 17° /9° | 0 mm | 4 | |
| May 10 | Overcast | 21° /6° | 0 mm | 5 | |
| May 11 | Overcast | 27° /12° | 0 mm | 6 | |
| May 12 | Moderate or heavy rain shower | 20° /16° | 12.2 mm | 5 | |
| May 13 | Moderate or heavy rain shower | 21° /18° | 12.2 mm | 5 | |
| May 14 | Patchy rain possible | 23° /16° | 0.7 mm | 5 | |
| May 15 | Moderate or heavy rain shower | 28° /16° | 9.4 mm | 6 | |
| May 16 | Patchy rain possible | 27° /20° | 4 mm | 6 | |
| May 17 | Patchy rain possible | 27° /16° | 5.9 mm | 6 | |
| May 18 | Overcast | 24° /15° | 0 mm | 5 | |
| May 19 | Overcast | 23° /13° | 0 mm | 5 | |
| May 20 | Patchy rain possible | 25° /14° | 1.5 mm | 6 | |
| May 21 | Moderate or heavy rain shower | 22° /16° | 25.8 mm | 5 | |
| May 22 | Moderate rain at times | 17° /11° | 2.6 mm | 4 | |
| May 23 | Overcast | 15° /8° | 0.2 mm | 4 | |
| May 24 |  Cloudy | 20° /11° | 0 mm | 5 | |
| May 25 | Overcast | 19° /12° | 0 mm | 4 | |
| May 26 | Overcast | 20° /13° | 0 mm | 4 | |
| May 27 | Moderate or heavy rain shower | 14° /12° | 62 mm | 3 | |
| May 28 |  Mist | 16° /11° | 0 mm | 4 | |
| May 29 | Overcast | 23° /18° | 2.1 mm | 5 | |
| May 30 | Moderate or heavy rain shower | 18° /13° | 42.3 mm | 4 | |
| May 31 |  Moderate or heavy rain with thunder | 21° /13° | 30.7 mm | 5 | |
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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.
Change Month
Charleston in May - FAQ
What are the expected maximum and minimum temperatures in Charleston during May?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Charleston during May?
Significant rainfall exceeding 241 mm is expected in Charleston during May, occurring over more than 19 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 16 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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