The temperatures in Sumter in May are comfortable with low of 17°C and and high up to 27°C.
You can expect rain for roughly half of the month of May in Sumter. 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 Sumter in May 2025.
If you’re planning to visit Sumter in the near future, we highly recommend that you review the 14 day weather forecast for Sumter before you arrive.
Temperatures
27° / 17°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
165
mm
Sun Hours
7.2
Hrs
