September dress in Valencia

Hi folks,
I'm about to make my 5th trip to Spain in 4 years. However I've always gone in Jan/Feb so dress has been pretty simple (wear lots, it's cold). I know at 54 I should leave the speedo and tshirts at home, but what SHOULD I wear for a couple of weeks of "walkin & gawkin". Looks like the temps in Valencia will be mid/high 80's or so. Any adice is much appreciated.
Jeorge

There has been a lot of heavy rain lately, with some flooding in the seaside areas, you should be fine with a windbreaker and umbrella at most. It will vary day to day this time of year. You probably won't need a hat in September - when I go in winter I take one but if I use it I am usually the only one in sight wearing one.
Do you go out at night? If so you will notice the temps drop, a leather jacket is best for late night prowling.