We will be in Hamburg beginning of June for a total of 5 days. Someone suggested a day trip to Helgoland. What is the usual weather there at this time of the year? I am wondering if a day trip is a good idea (one is for about 7 hours on a boat). Is the trip itself very nice? I am not sure what is that one can see/do during the 3-4 hours on the island. I am not sure if our time/money would be well used by going there. I'd appreciate some help.