Costa da Caparica (Caparica) weather in December
December in Costa da Caparica: cool, a little rain, with clean air — a good time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#12 of 12 months in Costa da Caparica · #912 of 1413 destinations to visit in December · comfort 63/100 (tier C)
- Days
- 17°C
- Nights
- 11°C
- Wet days
- 8
- Sun
- 7.2 h
- Humidity
- 82%
- Daylight
- 10 h
Traveller notes on Costa da Caparica in December
Other months in Costa da Caparica
Lisbon-area forum threads describe January as running around 15C in the day and 7-10C at night on average, with real variation depending on the day - a sunny stretch can reach the high teens C, while a grey, rainy one might barely clear 10C with nights near 5C. Posters recommended warm layers and sturdy, non-slip footwear, since wet cobblestones are a genuine hazard on rainy days around the wider Lisbon coast. Costa da Caparica, just across the river, follows this same general Atlantic winter pattern rather than anything milder or wetter.
Forum posters describe a steady, pleasant Atlantic breeze here that keeps July temperatures from feeling too intense, though it also means the ocean itself stays genuinely cold - posters describe water temperatures under 20C even at the height of summer, more suited to surfing (with a wetsuit) than casual swimming. A light jacket for evenings is standard advice despite the warm days. Posters flag a practical logistics point for anyone coming from Lisbon: bus traffic to and from Costa da Caparica gets genuinely heavy in summer, so a trip that normally takes around 30 minutes can run considerably longer during peak July-August crowds.
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Costa da Caparica climate normals — December
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Costa da Caparica in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsChristmas and New Year, Christmas holidays in Portugal, school holidays in 7 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Costa da Caparica's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherCosta da Caparica's weather peaks June–August, best around July.
December coincides with Winter storms and erosion.
Best weatherFair weatherToughest weather
What's on in Costa da Caparica in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Autumn swell
15 Sep – 31 MarSurf seasonThe beach breaks along the Caparica sandbanks work best when the summer wind drops and the Atlantic lows start tracking in. The surf schools stay open through it with wetsuits. Source ↗
- Hazard
Winter storms and erosion
1 Nov – 15 MarStorm seasonClosuresAtlantic depressions push straight onto this coast and take the sand with them; sections of the boardwalk and the beach access stairs are regularly closed for repair after a bad week. Source ↗
- Holiday
Christmas and New Year
24 Dec – 1 JanChristmas & New YearClosuresChristmas is kept at home: from the afternoon of 24 December through the 25th most restaurants, shops and museums close, and 1 January is just as quiet. Restaurants that do open on New Year's Eve usually sell set dinners that book up ahead. Source ↗
Nearby, and something's on
Within 300 km of Costa da Caparica — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Costa da Caparica?
Costa da Caparica in December — FAQ
- Is December a good time to visit Costa da Caparica?
- December in Costa da Caparica: cool, a little rain, with clean air — a good time to visit. It ranks #12 of 12 months for Costa da Caparica on SeasonMap's comfort score (63/100).
- What is the weather like in Costa da Caparica in December?
- In December, Costa da Caparica averages a daily high of 17°C and a low of 10.9°C, with about 74.6 mm of rain over roughly 8.2 rainy days.
- What is the air quality in Costa da Caparica in December?
- Costa da Caparica has a mean US Air Quality Index of about 37 in December.
Within 300 km: Cascais' Cascais Christmas Village around 20 Nov – 5 Jan, and Évora's Olive harvest around 1 Nov – 31 Jan.