Answer:
sunny, but yet a little chill, enough to were a sweater and mabey, if the sun is'nt out a wind-breaker, but it's so busy and there is so much to see, you don't really care about how cold or hot it is.
It's usually kind of rainy, but not nearly as much as the winter. If you're going for a visit, I'd say take some clothes for the sun, too. Hope this helps!!