Hi! I think the weather may be quite variable. We went to Bergen, Gerainger, Olden and Stavanger in August and the weather was pretty similar to the UK ... although it rained for 6 out of the 7 days!!
We are going on the same cruise. From what I can gather prepare for just about anything. Will take some Goretex walking shoes with me.
Busy reviewing others comments on the excursions.
Might see you on board.