We sailed to Bermuda from NYC early last November (1st week). NYC is really hit or miss that time of the year, it definitely can be chilly but generally in the 50s - low/mid 60s during daytime hours. For us, sweatshirt weather. Bermuda was quite nice when we were there. Warm enough to lay on the beach and go in the ocean a bit. Air temps were upper 70s - 80ish. Any later in November I think might be too chilly to swim, but still very nice.