What’s the weather like in Portugal in December?
Sitting on Europe’s Iberian Peninsula and surrounded by neighbouring Spain and the North Atlantic Ocean, Portugal generally has mild weather in December. The furthest west country in Europe, there’s differences in weather depending on where you go, although you can go to places for some winter sun.
The north and south have different weather, while things are different on the coast to the mountains. You'll get Mediterranean weather with mild temperatures in the south, which is where you’ll find the popular Algarve region. You'll get the driest and sunniest weather in all of Portugal here. As you head up the coast the Gulf Stream’s waters warm the north. Refreshing breezes will keep you cool on the coast, where things are a bit cooler than inland.
Lisbon gives a good idea of Portugal’s weather, and you'll have an average high of 15ºC there in December. Things can get quite cool in the evenings, so bring some warmer clothes as temperatures drop to 9ºC at night. The sea temperature’s 17ºC, while humidity’s low. Average rainfall’s 106mm over 14 rainy days. You can expect five hours of sunshine from the ten hours of daylight each day. UV levels will be low. Sunset’s around 5.15pm for most of the month.