nearest weather station: Oslo, Norway (37.2 KM). Water temperature forecasts for the long term tend to be misleading. These average ocean temperatures for Oslo are calculated from several years of archived data. The maximum and minimum values were.8F and.4F respectively. TripAdvisor LLC is not a booking agent and does not charge any service fees to users of our site.
The average sea surface temperature in June 2018 for Oslo phnix fredrikstad was.9F. TripAdvisor LLC is not responsible for content on external web sites. August.6F, when is the Warmest Sea for Oslo? Weather Forecast for Oslo, show in, fahrenheit. The average sea surface temperature in August 2017 for Oslo was.5F.