Find out about visitor visas to Norway here.
Norway has 220-240 V, 50 Hz electric outlets that take Type C and F power plugs (2 round prongs) typical of northern Europe.
At yr.no, you will find up-to-date weather conditions in Bergen. Norwegians will check this site frequently, and follow the adage that det finnes ikke dårlig vær, bare dårlig klær (“There is no such thing as bad weather, only bad clothing.”)
Further information will come later.