Month guide · Paço de Arcos, Portugal
Paço de Arcos in December: weather and what to expect
In December, Paço de Arcos averages highs of 15°C and lows of 12°C, with about 11 rainy days and 85 mm of rain. Highs are 2°C cooler than in November and 1°C warmer than in January. Crowds in the Lisbon area are medium.
Is December a good time to visit?
Good for
No verdicts for Paço de Arcos in December yet. They only use climate values that are precise enough to judge with.
Not ideal for
- Reliable dry weatherAbout 11 rainy days in the month
Daily highs through December
Town-level · ERA5-Land 1991-2020Highs fall about 1°C over the month.
December in detail
Town-level · ERA5-LandCrowds, holidays and daylight
Public holidays in December 2026
- 1 Dec Restoration of Independence Day
- 8 Dec Immaculate Conception
- 25 Dec Christmas Day
Local (municipal) holidays are not included.
Warmer in December
Where is warm in December →| Place | High | Rain days | From Paço de Arcos |
|---|---|---|---|
| Aljezur, Algarve | 16°C | 10 | 159 km |
| Bensafrim, Algarve | 16°C | 9 | 178 km |
| São Marcos da Serra, Algarve | 16°C | 9 | 169 km |
| Odemira, Alentejo | 16°C | 9 | 135 km |
| Vila Nova de Milfontes, Alentejo | 16°C | 10 | 117 km |
The nearest towns with a warmer December. Distances are in a straight line.
How December is changing
Town-level · ERA5-LandDecember highs are 0.5°C warmer than in 1991-2000, and December rainfall is down about 25% (2016-2025 against 1991-2000).
Questions about Paço de Arcos in December
Is December a good time to visit Paço de Arcos?
It is less suited to reliable dry weather (about 11 rainy days in the month).
How warm is Paço de Arcos in December?
Average highs are 15°C and lows 12°C. November averages 17°C and January 14°C.
Does it rain much in Paço de Arcos in December?
About 11 days have at least 1 mm of rain, with 85 mm in total over the month.
Is Paço de Arcos busy in December?
In December 2025, nights booked through online platforms in the Lisbon area were about 45% of the busiest month, which we count as medium. The figure is for the whole region and leaves out hotels.
How long are the days in Paço de Arcos in December?
About 9 h 29 min from sunrise to sunset in the middle of the month.
Sources
Climate: ERA5-Land, Copernicus Climate Change Service (C3S) Climate Data Store, contains modified Copernicus information (CC BY 4.0). Crowds: Eurostat, nights spent in short-stay accommodation booked through online platforms (tour_ce_omn12) (CC BY 4.0). Place names and populations: GeoNames (CC BY 4.0). Climate averages cover 1991-2020. Daylight: calculated from the town's coordinates. Full methodology