I live fairly far south as well and right now it is AFRICA HOT here.
That being said concealing under a jacket or long shirt is really not an option (for the next few months at least).

My neighbor has an airweight J frame .357 but I honestly find full house .357 unpleasent in an airweight frame and mildly unpleasent but manageable in a K frame Model 66 snub.

Current summer CCW is a 38 special Model 37 airweight for any 2 legged threats, for woods carry the Model 66 snub gives another level of confidence for anything 4 legged that lives in in SE Florida.

When it cools down switch to an 8 shot 9mm S&W Model 3953 ,
For trips to Me-Jami, WPB or Ft Lauderdale switch to a 12 shot Model 6906 or 14 shot Model 59 for added peace of mind.