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Arcos de Valdevez Weather in December
Arcos de Valdevez in December sees moderate daytime temperatures of 13°C (55°F) and nighttime lows of 5°C (41°F). As part of the rainy season, showers are frequent and often heavy. Budget around 235 mm (9.3 in) of rainfall for the month.
Rainfall in Arcos de Valdevez in December
Arcos de Valdevez is in the rainy season in December, with rain on around 18 days and an average of 235 mm (9.3 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in Arcos de Valdevez in December
December in Arcos de Valdevez brings typical temperatures with highs around 13°C (55°F) and lows of 5°C (41°F). During December, you'll experience the winter season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 5°C (41°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Arcos de Valdevez in December
The month brings about 129 hours of sunlight, offering a comfortable mix of sun and rainy moments.December in Arcos de Valdevez has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Arcos de Valdevez Temperature in December
Min Temperature
5°C (41°F)
Max Temperature
13°C (55°F)
Chance of Rain
59%
Precipitation
235 mm (9.3 in)
Rainy days
18 days
Humidity
85% *
Sunshine
129 hours *
Percentage Sunshine
*
* Data from: Vigo, Spain (46 KM, 28 Miles).
Arcos de Valdevez Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Arcos de Valdevez - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Arcos de Valdevez typically stay consistent throughout December, with daily highs averaging around 13°C (55°F). Nights are cold, with lows around 7°C (45°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather records for Arcos de Valdevez in December
Browse day-by-day weather records for Arcos de Valdevez spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Arcos de Valdevez historical weather extremes in December
According to our 49 years of weather records for Arcos de Valdevez, the following extremes were recorded between 1976 and 2025.
- Arcos de Valdevez recorded its highest December temperature of 24°C (75°F) on December 2, 1985.
- The coldest December day was on December 21, 2025, with a maximum of 6°C (43°F).
- Arcos de Valdevez registered its coldest December night on December 25, 2001, with temperatures dropping to -3°C (27°F).
- Peak precipitation in December occurred on December 7, 2000, when 104 mm (4.1 in) of precipitation was measured.
Best Places in Portugal in December
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Arcos de Valdevez in December
Pack for changing conditions in Arcos de Valdevez in December. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Arcos de Valdevez in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling5/10 -
Walking5/10 -
Camping3/10
Arcos de Valdevez 3-Day Forecast
More climate data for Arcos de Valdevez
Temperature Rainfall Sunshine Humidity
See the full Arcos de Valdevez climate overview or explore weather in Portugal.
Popular in December
Where to go in December - average daytime high across popular destinations.
Portimão
17°C (63°F) Albufeira17°C (63°F) Lagos17°C (63°F) Ericeira16°C (61°F) Cascais17°C (63°F) Vilamoura17°C (63°F) Lisbon16°C (61°F) Porto
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