Hilton Head Island (SC)
May
Weather in Hilton Head Island, South Carolina for May 2026
Your guide to Hilton Head Island weather in May - trends and predictions
Until now, May 2026 in Hilton Head Island is cooler than usual, with temperatures averaging 21 °F, this is -2.4 °F below the typical seasonal average.
The forecast for the upcoming days in Hilton Head Island predicts a temperature of 24.7 °F, which is slightly above the historical average.
In general, the average temperature in Hilton Head Island at the beginning of May is 23.1 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 28.1 °F by the end of May.
Hilton Head Island experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 240.4 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
10
Dry days
21
Rainy days
0
Snow days
26°/21°
Temperatures
22 km/h
Avg max wind
77 %
Avg humidity
Hilton Head Island Weather May
Move between months or click on a day
Temperatures trend during May in Hilton Head Island
See the weather trend as well as the moving average line
May weather in Hilton Head Island day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Partly cloudy | 22° /18° | 3.4 mm | 5 | |
| May 2 |  Patchy rain possible | 22° /17° | 12.4 mm | 4 | |
| May 3 | Partly cloudy | 22° /17° | 0 mm | 7 | |
| May 4 | Light rain shower | 22° /18° | 8.8 mm | 7 | |
| May 5 | Light rain shower | 24° /19° | 2.7 mm | 8 | |
| May 6 |  Moderate or heavy rain shower | 25° /20° | 4.1 mm | 7 | |
| May 7 | Patchy rain possible | 25° /20° | 7.3 mm | 6 | |
| May 8 |  Sunny | 24° /19° | 0.2 mm | 7 | |
| May 9 |  Thundery outbreaks possible | 25° /21° | 12.3 mm | 6 | |
| May 10 |  Patchy light rain with thunder | 24° /20° | 20.5 mm | 6 | |
| May 11 | Patchy rain possible | 28° /21° | 3.3 mm | 9.6 | |
| May 12 |  Moderate rain | 21° /17° | 8.3 mm | 2.4 | |
| May 13 | Patchy rain possible | 23° /20° | 0.5 mm | 3.5 | |
| May 14 | Patchy rain possible | 25° /19° | 1.1 mm | 8.6 | |
| May 15 | Sunny | 22° /16° | 0 mm | 0.6 | |
| May 16 | Sunny | 24° /21° | 0 mm | 6 | |
| May 17 | Patchy rain possible | 25° /22° | 0.2 mm | 5 | |
| May 18 | Patchy rain possible | 26° /22° | 1.4 mm | 5 | |
| May 19 | Partly cloudy | 26° /22° | 0 mm | 6 | |
| May 20 | Patchy rain possible | 26° /22° | 0.8 mm | 5 | |
| May 21 | Patchy rain possible | 25° /23° | 1.2 mm | 5 | |
| May 22 | Patchy rain possible | 26° /23° | 0.1 mm | 5 | |
| May 23 | Patchy rain possible | 26° /23° | 3.5 mm | 5 | |
| May 24 | Patchy rain possible | 23° /22° | 0.1 mm | 5 | |
| May 25 | Thundery outbreaks possible | 28° /22° | 0.7 mm | 7 | |
| May 26 | Partly cloudy | 28° /22° | 14.7 mm | 7 | |
| May 27 | Sunny | 27° /23° | 2.1 mm | 7 | |
| May 28 | Sunny | 29° /23° | 0.9 mm | 7 | |
| May 29 | Sunny | 30° /22° | 4.1 mm | 7 | |
| May 30 | Sunny | 28° /21° | 13.2 mm | 7 | |
| May 31 | Sunny | 27° /20° | 5.9 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Hilton Head Island 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 Hilton Head Island forecast closer to your planned date for the most up-to-date weather information.
Change Month
Hilton Head Island in May - FAQ
What are the expected maximum and minimum temperatures in Hilton Head Island during May?
During May, expect a variety of temperatures with highs around 26° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hilton Head Island during May?
Significant rainfall exceeding 240.4 mm is expected in Hilton Head Island during May, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hilton Head Island during May?
The average wind speed in Hilton Head Island during May is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Hilton Head Island
Explore the daily rainfall trends and prepare for Hilton Head Islands May weather 💧
Typically, Hilton Head Island has 21 rainy days in May with a total of 240.4 mm of rainfall.
UV exposure in Hilton Head Island during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Quick links
More Hilton Head Island weather pages
You are here
Where is Hilton Head Island?Get accurate weather forecasts for Hilton Head Island, located at latitude 32.194 and longitude -80.738. Stay updated with localized weather information tailored for Hilton Head Island.
Found a mistake?
We appreciate your attention to details. Tell us here.