average temperatures by month bergen norway
Average Temperatures in Bergen, Norway. 1  The mean annual temperature in Bergen, Norway is a little cool at 7.9 degrees Celsius (46.3 degrees Fahrenheit). 2  Mean monthly temperatures vary by 14.5 C (26.1F) which is a low range.  There is a variation/ range of daily average temperatures of 5.5 C (9.9 F).