The weather in Port St. Lucie in August is very hot. The average temperatures are between 26°C and 31°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of August in Port St. Lucie. 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 Port St. Lucie in August 2025.
If you’re planning to visit Port St. Lucie in the near future, we highly recommend that you review the 14 day weather forecast for Port St. Lucie before you arrive.
Temperatures
31° / 26°
Rainy Days
14
Snowy Days
0
Dry Days
17
Rainfall
220
mm
Sun Hours
11.7
Hrs
