Since my move to Portugal, I find 10 degrees Celsius cold, so I can relate. Which doesn't mean that we don't have nights near freezing, every now and then, inbetween November and April/ May. Right now, it's Winter with plenty of rain and temperatures that hardly go below 10 Celsius. This would be called Autumn weather, in The Netherlands.
Stay warm! Keep the fire burning ;<)
I guess your new cold in Portugal is nothing like the cold of the Netherlands, but still it's all relative after we get used to the local weather.