Mostly what you have described will do the trick, but some sort of light jacket for the evening & an umbrella will be good insurance. Usually that time of year the weather is pretty good, but it is towards the tail end of rainy season, so it’s better to be prepared/

Usually around 80 and 65 at night. It could be a little windy, so if you get cold easily, take a coverup or light jacket. It may rain during the day too…