Viseu in Winter
In winter (December, January and February), Viseu sees average daytime highs around 11°C and overnight lows near 4°C, with 414 mm of precipitation over about 33 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 11°C. The sky is clear or mostly clear about 33% of the time across winter, and the air most often feels dry.
Winter is Viseu's weakest season of the year to visit on our travel score. For the whole year in context, see Viseu's year-round climate.
- Avg daytime high
- 11°C
- coldest season of the year
- Avg overnight low
- 4°C
- Precipitation
- 414 mm
- 33 wet days
- Avg wind
- 10 km/h
- Travel score
- 2.8
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Viseu in Winter
Across winter, daytime highs hold fairly steady around 11°C.
A typical winter day in Viseu reaches about 11°C and drops to 4°C overnight. The warmest of the three months is February, the coolest January.
Viseu 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 | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 11° / 4° | 152 | 11.6 | 0.5 | 9.4 | 2.5 |
| Feb | 12° / 4° | 102 | 9.3 | 0.3 | 10.4 | 3.3 |
| Mar | 15° / 6° | 115 | 10.6 | 0 | 11.7 | 4.5 |
| Apr | 17° / 7° | 118 | 12.8 | 0 | 13.1 | 4.9 |
| May | 20° / 10° | 98 | 11.6 | 0 | 14.2 | 6.1 |
| Jun | 23° / 13° | 40 | 6.2 | 0 | 14.9 | 7.7 |
| Jul | 27° / 15° | 19 | 3.7 | 0 | 14.6 | 8.2 |
| Aug | 27° / 15° | 26 | 4.6 | 0 | 13.6 | 8.0 |
| Sep | 24° / 13° | 66 | 7.1 | 0 | 12.3 | 7.6 |
| Oct | 19° / 10° | 168 | 12.2 | 0 | 10.9 | 5.7 |
| Nov | 14° / 7° | 150 | 12.7 | 0.1 | 9.7 | 3.7 |
| Dec | 11° / 5° | 160 | 11.6 | 0.1 | 9.1 | 2.7 |
Cloud cover in Winter
The sky is clear or mostly clear about 33% of the time across winter.
Chance of precipitation in Winter
Viseu gets around 414 mm of rain and snow over 33 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 10 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 18 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 2.2 kWh/m².
Hazard calendar for Viseu
In winter, Viseu overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Viseu's rainy season runs October–May, when most of the year's rain falls.
Is winter a good time to visit Viseu?
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 Viseu.
What to pack for Viseu in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Viseu sees daytime highs around 11°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 33 days see rain.
UV index in Viseu 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 Viseu peaks around July 13 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 | 9 | 6 | 5 | 2 | 2 |
| Level | Low | Moderate | High | High | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | High |
| Apr | 7 | High |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 6 | High |
| Oct | 5 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Viseu 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 Viseu is worst in October — around 29 µg/m³ PM2.5 (moderate), about 3.9× 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) | 9 | 10 | 13 | 11 | 8 | 21 | 9 | 24 | 23 | 29 | 7 | 7 |
| Level | Good | Good | Moderate | Good | Good | Moderate | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 10 | Good |
| Mar | 13 | Moderate |
| Apr | 11 | Good |
| May | 8 | Good |
| Jun | 21 | Moderate |
| Jul | 9 | Good |
| Aug | 24 | Moderate |
| Sep | 23 | Moderate |
| Oct | 29 | Moderate |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is Viseu?
Viseu sits at 40.7°N, 7.9°W, 469 m above sea level, in Portugal. The nearest listed city is Arouca, 41 km away.
Topography around Viseu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Viseu.
Within 3 km, the terrain around Viseu has only modest variations in elevation — a maximum elevation change of 165 m around an average of 466 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 814 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,993 m.
The land around Viseu is covered by trees (45%) and artificial surfaces (35%) within 3 km, trees (56%) and grassland (36%) within 16 km, and trees (48%) and grassland (41%) 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 Viseu (40.6617°, -7.909°, elevation 469 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.