Weather in Lisbon in December 2024
- December is usually the wettest month of the year in Lisbon;
Average weather
Average temperature in Lisbon in December
Going from a maximum of +20°C during the day to a minimum of +4°C during the night, the temperature in December averages around +16°C.
The average maximum temperature goes down 6% by the end of the month, compared with the beginning of the month, from +15°C to +14°C.
Is Lisbon warm or cold in December?
Lisbon is typically mild in December.
Maximum temperatures go down compared to the previous month from +18°C to +15°C. The minimum temperature also goes down from +12°C to +10°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
December is one of the coolest months in Lisbon, here is the comparison with other months:
Water temperature in Lisbon in December
Water in Lisbon in December is Fresh. It varies from +16°C to +17°C, with an average of +17°C. Note that the air temperature is lower than the water temperature, averaging around +15°C.
In December, water temperatures are average relative to the rest of the year:
Can you swim in Lisbon in December?
Climate in Lisbon in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +18°C | +15°C | +14°C | ||||
| Min. temperature | ||||||
| +5°C | +2°C | +1°C | ||||
| Max. temperature | ||||||
| +25°C | +21°C | +22°C | ||||
| Rainfall | ||||||
| 103 mm | 122 mm | 84 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +18°C | +17°C | +16°C | ||||
| Humidity | ||||||
| 78% | 80% | 79% | ||||
| Air pressure | ||||||
| 1018 HPa | 1021 HPa | 1022 HPa | ||||
| Sunny days | ||||||
| 11 | 11 | 12 | ||||
| Cloudy days | ||||||
| 6 | 6 | 7 | ||||
| Rainy days | ||||||
| 12 | 13 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December weather is still as ok as in November. It’s getting colder in December. From +18°C in the day, the average maximum temperature lowers to +15°C. Prepare for more rain. Average rainfall goes from 103 mm to 122 mm. Humidity rises from 78% to 80%. The average wind speed doesn’t change much during December, staying around 3 m/s. The amount of sunny days stay about the same, averaging 11 sunny days during the month.
January brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Lisbon is gradually decreasing during December, going from 4 m/s to 2 m/s over the course of the month.
Rain
How was the weather last December in Lisbon?
Climate Change over Years
The climate in Lisbon in December has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+18°C) and the highest in 2017 (+22°C). The driest year was 1992 with only 298 mm of rainfall, and the wettest year was 2022 with 2338 mm.
FAQ
Is December a good time to visit Lisbon?
Can you sunbathe in Lisbon in December?
Can you swim in Lisbon in December?
Is Lisbon rainy in December?
Is it sunny in Lisbon in December?
Other cities in Portugal
Monthly weather in Lisbon
Source of the data
For this page, we’ve looked at the typical weather in Lisbon, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.