https://www.wolframalpha.com/input/?i=temperatures+in+oslo+vs+amsterdam https://www.wolframalpha.com/input/?i=temperatures+in+oslo+v... Oslo is 5 deg celsius c

https://www.wolframalpha.com/input/?i=temperatures+in+oslo+vs+amsterdam https://www.wolframalpha.com/input/?i=temperatures+in+oslo+v... Oslo is 5 deg celsius colder in winter than Amsterdam. You sometimes have sub-0, for them it's a norm. There is a big difference between 5C-10C and 0C (a Warsaw-native here, which is closer in terms of temperatures to Oslo)