Arcos de Valdevez in Winter
In winter (December, January and February), Arcos de Valdevez sees average daytime highs around 13°C and overnight lows near 5°C, with 635 mm of rain over about 37 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across winter, daytime highs hold fairly steady around 13°C. The sky is clear or mostly clear about 32% of the time across winter, and the air most often feels dry.
Winter is Arcos de Valdevez's weakest season of the year to visit on our travel score. For the whole year in context, see Arcos de Valdevez's year-round climate.
- Avg daytime high
- 13°C
- coldest season of the year
- Avg overnight low
- 5°C
- Rainfall
- 635 mm
- 37 wet days
- Avg wind
- 9 km/h
- Travel score
- 3.2
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Arcos de Valdevez in Winter
Across winter, daytime highs hold fairly steady around 13°C.
A typical winter day in Arcos de Valdevez reaches about 13°C and drops to 5°C overnight. The warmest of the three months is February, the coolest January.
Arcos de Valdevez weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 12° / 5° | 237 | 13.3 | 9.3 | 2.9 |
| Feb | 13° / 5° | 153 | 10.3 | 10.3 | 3.7 |
| Mar | 16° / 7° | 180 | 11.5 | 11.7 | 4.7 |
| Apr | 17° / 8° | 167 | 14.1 | 13.1 | 4.9 |
| May | 19° / 10° | 148 | 13 | 14.3 | 5.8 |
| Jun | 23° / 13° | 66 | 7.9 | 15 | 7.3 |
| Jul | 25° / 15° | 38 | 5 | 14.7 | 8.2 |
| Aug | 25° / 15° | 53 | 5.5 | 13.7 | 8.0 |
| Sep | 23° / 13° | 100 | 8.2 | 12.3 | 7.3 |
| Oct | 19° / 11° | 250 | 13.3 | 10.9 | 5.6 |
| Nov | 15° / 7° | 240 | 13.5 | 9.6 | 4.1 |
| Dec | 13° / 5° | 246 | 13.5 | 9 | 3.1 |
Cloud cover in Winter
The sky is clear or mostly clear about 32% of the time across winter.
Chance of precipitation in Winter
Arcos de Valdevez gets around 635 mm of rain over 37 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 9 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 12 min in early December to 10 h 54 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 2.1 kWh/m².
Hazard calendar for Arcos de Valdevez
In winter, Arcos de Valdevez overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Arcos de Valdevez's rainy season runs October–May, when most of the year's rain falls.
Is winter a good time to visit Arcos de Valdevez?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Arcos de Valdevez.
What to pack for Arcos de Valdevez in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Arcos de Valdevez sees daytime highs around 13°C and nights near 5°C. Pack a warm layer. Worth having: rain gear. About 37 days see rain.
Sea temperature near Arcos de Valdevez in Winter
The nearest coast averages about 14°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 38 km away) is warmest in August at about 17°C and coldest in February near 13°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 13 | 14 | 14 | 15 | 17 | 17 | 17 | 17 | 17 | 16 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 14 | Bracing |
| Apr | 14 | Bracing |
| May | 15 | Cool |
| Jun | 17 | Cool |
| Jul | 17 | Cool |
| Aug | 17 | Cool |
| Sep | 17 | Cool |
| Oct | 17 | Cool |
| Nov | 16 | Cool |
| Dec | 15 | Bracing |
UV index in Arcos de Valdevez in Winter
Clear-sky midday UV across winter averages around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Arcos de Valdevez peaks around July 12 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 7 | 7 | 9 | 9 | 8 | 6 | 4 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Arcos de Valdevez in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Arcos de Valdevez is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 12 | 15 | 12 | 8 | 8 | 9 | 14 | 19 | 17 | 7 | 7 |
| Level | Good | Good | Moderate | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 12 | Good |
| Mar | 15 | Moderate |
| Apr | 12 | Good |
| May | 8 | Good |
| Jun | 8 | Good |
| Jul | 9 | Good |
| Aug | 14 | Moderate |
| Sep | 19 | Moderate |
| Oct | 17 | Moderate |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is Arcos de Valdevez?
Arcos de Valdevez sits at 41.8°N, 8.4°W, 42 m above sea level, in Portugal. The nearest listed city is Ponte de Lima, 16 km away.
Topography around Arcos de Valdevez
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Arcos de Valdevez.
Within 3 km, the terrain around Arcos de Valdevez has significant variations in elevation — a maximum elevation change of 459 m around an average of 151 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,409 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,517 m.
The land around Arcos de Valdevez is covered by trees (58%) and grassland (33%) within 3 km, trees (55%) and grassland (43%) within 16 km, and trees (44%), grassland (29%) and water (20%) within 80 km.
Portugal travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / E / F
- 230 V · 50 Hz
- Prices
- ≈ 60% of US
- price level, 2025
- GDP per capita
- $32,082
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 95%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2022
- Road deaths
- 8.2
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 612
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Arcos de Valdevez (41.8467°, -8.4191°, elevation 42 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.