Weather in Lisbon in December
December in Lisbon is mild enough that walking is the default. This is a city-break month more than a sea-holiday month.
In Portugal, this is how Lisbon actually wears December, not how a country centroid would. Compared with August and January, December sits in the middle of Lisbon's year.
- Average temp
- 13°C
10–15°C
- Rainfall
- 102 mm
Showers likely
- Sunshine
- 4.8 h
hours per day
What to expect
Daytime
Mild afternoons in Lisbon are the prize in December. You can eat outside on the good days. You still want something for the breeze.
This is walking weather. Shade is useful, not essential the way it is in the hot months. A long outdoor day is a reasonable plan.
Rain
December is the wet side of the year in Lisbon. Days can be heavy. Plans that cannot survive rain are the wrong plans.
This is not a reason to skip Lisbon if you like the place. It is a reason to pack for weather and to stop treating every grey hour as a failed holiday.
Evening
Evenings are cooler. A layer helps after sunset.
What to pack
Rain jacket
A layer for cooler evenings
Where to stay in Lisbon
Dates are a starting point for December.
Travel guides for Lisbon
What to read before you book.
Average weather in Lisbon
TemperatureRainfall
Similar weather in December
Other destinations whose December averages sit close to this one.
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FAQs about Lisbon
Climate averages for Lisbon, 1991–2020.
The best time to visit Lisbon is between May and October, the most comfortable stretch of the year on these averages.
August is the hottest month, with an average around 24°C.
November is the wettest month, with about 121 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
