Month guide · Costa da Caparica, Portugal

Costa da Caparica in December: weather and what to expect

In December, Costa da Caparica averages highs of 15°C and lows of 11°C, with about 10 rainy days and 80 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.

Based on 1991-2020 climate data · Updated 1 November 2026 · Sources

Average high Town-level15°CLow 11°C
Sea temperature Modelled16°COpen sea nearby, average for the month
Rainy days Town-level1080 mm in total
UV index Modelled2Low at noon on a clear day
Crowds RegionalMediumThe Lisbon area as a whole

Is December a good time to visit?

Good for

No verdicts for Costa da Caparica in December yet. They only use climate values that are precise enough to judge with.

Not ideal for

  • Reliable dry weather
    About 10 rainy days in the month

Daily highs through December

Town-level · ERA5-Land 1991-2020
Usual range (8 in 10 years)Typical high

Highs fall about 1°C over the month. Nights below 5°C in about 1 in 5.

December in detail

Town-level · ERA5-Land
MeasureNovemberDecemberJanuary
Average high17°C15°C14°C
Average low13°C11°C10°C
Rainy days (at least 1 mm)10109
Total rainfall82 mm80 mm69 mm
Daylight (mid-month)10 h 07 min9 h 29 min9 h 45 min

Crowds, holidays and daylight

Visitor level RegionalMediumNights booked through online platforms in the Lisbon area in December 2025: about 45% of the busiest month.

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.

Daylight mid-month Exact9 h 29 minSunrise to sunset, calculated from the town's coordinates.
PlaceHighRain daysFrom Costa da Caparica
Aljezur, Algarve16°C10152 km
Bensafrim, Algarve16°C9171 km
São Marcos da Serra, Algarve16°C9161 km
Odemira, Alentejo16°C9127 km
Vila Nova de Milfontes, Alentejo16°C10109 km

The nearest towns with a warmer December. Distances are in a straight line.

How December is changing

Town-level · ERA5-Land

December highs are 0.5°C warmer than in 1991-2000, and December rainfall is down about 25% (2016-2025 against 1991-2000).

Questions about Costa da Caparica in December

Is December a good time to visit Costa da Caparica?

It is less suited to reliable dry weather (about 10 rainy days in the month).

How warm is Costa da Caparica in December?

Average highs are 15°C and lows 11°C. November averages 17°C and January 14°C.

Does it rain much in Costa da Caparica in December?

About 10 days have at least 1 mm of rain, with 80 mm in total over the month.

Is Costa da Caparica 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 Costa da Caparica 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