What you want is breath ability in warm climates… Grundens is great at keeping the weather out but is not breathable (maybe the new light weight stuff is ok… Don’t know). I would go to REI and get a lightweight raincoat and bibs… Something with pit zips to let out the heat. Don’t get anything fancy… The only fancy stuff that’s breathable is uber expensive and doesn’t work at all once it gets greasy.
You also want some non-cotton clothes underneath. The sports stuff (under armor, Patagonia, REI brand) works great but stinks to high heaven after one deck watch. I like the thin wool shirts best… They cost a bit more but Wick great and never stink.