Weather in December in Lisbon Portugal
Now, I know what you're thinking, "December, isn't that when the rain comes?" And to that, I say, yes and no. It's not like the sky is going to open up and pour buckets of water on you (although, it might, just to keep things interesting). But seriously, December is one of the wettest months in Lisbon, with an average of 12 rainy days. So, pack your umbrella, but don't let it dampen your spirits!
The rain is mostly light to moderate, and it's a great excuse to pop into one of Lisbon's many cafes and try a pastel de nata (or three). And who knows, you might even discover a new favorite coffee shop to while away the rainy hours. Just don't forget your wallet, because, let's face it, you'll probably want to buy all the pastries!