The weather in Hilton Head Island in May is hot. The average temperatures are between 21°C and 26°C.
You can expect rain for roughly half of the month of May in Hilton Head Island. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Hilton Head Island in May 2025.
If you’re planning to visit Hilton Head Island in the near future, we highly recommend that you review the 14 day weather forecast for Hilton Head Island before you arrive.
Temperatures
26° / 21°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
151
mm
Sun Hours
11.1
Hrs
