I will be sailing on the Celebrity Galaxy for 14 day - July 14 - 28, 2001. Ports of call will be Stockholm, Helsinki, St. Petersburg, Tallin, Gdansk, Rostock, Copenhagen, Oslo and Amersterdam. Not having traveled this part of Northern Europe in July, I would like to inquire about what the average temperatures might be. I use to have a chart that gave temperatures for various parts of the world at various time however, it has become lost. Help me if you can.