The weather in Houston in May is hot. The average temperatures are between 21°C and 29°C.
You can expect rain for roughly half of the month of May in Houston. 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 Houston in May 2025.
If you’re planning to visit Houston in the near future, we highly recommend that you review the 14 day weather forecast for Houston before you arrive.
Temperatures
29° / 21°
Rainy Days
9
Snowy Days
0
Dry Days
23
Rainfall
191
mm
Sun Hours
10.7
Hrs
