Hi lamar. The weather will be hot during the day, sometimes reaching 100º, but more often than not late eighties, early nineties. Very pleasant, but watch the sun as it is quite strong! The evenings are a bit cooler and in September you may need a sweater or jacket, but only occasionally. It's summer
The old town is full of restaurants and tapas bars and bodegas and so on. Be careful of the ones around Orange Square, because although as they are in a lovely location, prices can be high. One of the best restaurants is round the corner from there and is called La Pesquera where the fish and seafood are great.
The paseo maritimo, or promenade, is also a nice place to stroll on an evening and there are some good places in the streets leading down to it from the main road. Just wander the streets and you will find a multitude of excellent places.
There aren't any fiestas as far as I am aware and the Marbella feria, or major fiesta, is always in early June. But the town hall are always putting on different events in summer and to see what is happening you should keep an eye on the
www.surinenglish.com for news or in Spanish, the daily
www.diariosur.es Must sees in the area are places like Mijas, Puerto Banus - the flea market there on a Saturday is interesting and a good place for gifts (for anyone who likes fleas, that is
) Go to the village of Benahavis for a meal one evening if you have a car. It will take you about 25 minutes to drive there, but worth it. You'll love it - it's a great place!