What you need to know is cannabis/weed/Marijuana and hash are unlawful in Oslo, Norway. However, persons here love to smoke weed, so you should not have any trouble find dealers or even other people who smoke across the metropolis. In Norway, leisure cannabis is prohibited and fined for smaller quantities; https://mylessrblc.nytechwiki.com/10122577/not_known_details_about_weed_oslo