Wow ... that map scared us ....
Seriously though, this has been our experience:
A couple of weeks ago, we had some friends from Maine in town.
They got in the water in shorts .... so we figured if they could do it, we could ... and we did ... and after the initial shock, it was rather warm.
Fast forward to last weekend ... went down to surf ... and had to use the short suit ... the sun was out but it was very windy ... but if you are in the water and being active, you warm up quick ....
Today, the sun is out ... it was in the 80's yesterday ... think the water temp is somewhere around 71 degrees .... if it's not too windy, we would have no problem getting in the water on a sunny day like today ....
In 2 weeks, hopefully it will be just perfect!!!!!