Arcos de Valdevez in Fall
In fall (September, October and November), Arcos de Valdevez sees average daytime highs around 19°C and overnight lows near 10°C, with 590 mm of rain over about 35 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 24°C in early September to 13°C by late November. The sky is clear or mostly clear about 36% of the time across fall, and the air most often feels dry.
Fall is Arcos de Valdevez's 2nd-best season to visit on our travel score. For the whole year in context, see Arcos de Valdevez's year-round climate.
- Avg daytime high
- 19°C
- 2nd-warmest season
- Avg overnight low
- 10°C
- Rainfall
- 590 mm
- 35 wet days
- Avg wind
- 9 km/h
- Travel score
- 5.7
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Arcos de Valdevez in Fall
Over the season highs ease from about 24°C in early September to 13°C by late November.
A typical fall day in Arcos de Valdevez reaches about 19°C and drops to 10°C overnight. The warmest of the three months is September, the coolest November.
Arcos de Valdevez weather by month
How the three fall months (September, October and November) 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 Fall
The sky is clear or mostly clear about 36% of the time across fall.
Chance of precipitation in Fall
Arcos de Valdevez gets around 590 mm of rain over 35 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 hours in early September to 9 h 12 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.3 kWh/m².
Hazard calendar for Arcos de Valdevez
In fall, 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 fall a good time to visit Arcos de Valdevez?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Arcos de Valdevez for sightseeing.
What to pack for Arcos de Valdevez in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Arcos de Valdevez sees daytime highs around 19°C and nights near 10°C. Worth packing: light clothes, a warm layer, rain gear and sun protection. About 35 days see rain.
Sea temperature near Arcos de Valdevez in Fall
The nearest coast averages about 16°C across fall — 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 Fall
Clear-sky midday UV across fall averages around 4 — enough to warrant sun protection. 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 Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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.