I went in March last year (I think roughly 27-30) and with the exception of one cloudy/drizzly day the weather was actually pretty warm. I was able to get away with tank tops and a light sweater and capris for most of the trip and easily could have done shorts had I remembered to pack them. But it also depends on what you are used to. I'm from NorCal and we typically are getting warm spring weather at home and it was slightly warmer at DLR for the most part.