Viseu in Spring
In spring (September, October and November), Viseu sees average daytime highs around 31°C and overnight lows near 24°C, with 77 mm of rain over about 23 wet days across the season. It is the warmest season of the year and the driest season of the year.
Across spring, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 48% of the time across spring, and the air most often feels oppressive.
Spring is Viseu's best season of the year to visit on our travel score. Viseu has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Viseu's year-round climate.
- Avg daytime high
- 31°C
- warmest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 77 mm
- 23 wet days
- Avg wind
- 14 km/h
- Travel score
- 4.8
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Viseu in Spring
Across spring, daytime highs hold fairly steady around 31°C.
A typical spring day in Viseu reaches about 31°C and drops to 24°C overnight. The warmest of the three months is November, the coolest September.
How spring really feels in Viseu
Once humidity and wind are folded in, spring brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Viseu weather by month
How the three spring 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 | 30° / 24° | 256 | 26.7 | 12.1 | 3.1 |
| Feb | 29° / 24° | 369 | 26.9 | 12 | 2.9 |
| Mar | 29° / 23° | 478 | 30.3 | 12 | 2.8 |
| Apr | 29° / 24° | 491 | 29.4 | 12 | 2.8 |
| May | 30° / 24° | 320 | 28.5 | 11.9 | 3.0 |
| Jun | 30° / 23° | 160 | 25.1 | 11.9 | 3.3 |
| Jul | 30° / 23° | 116 | 23.9 | 11.9 | 3.6 |
| Aug | 30° / 24° | 50 | 18.3 | 12 | 4.2 |
| Sep | 31° / 24° | 27 | 9.3 | 12 | 4.8 |
| Oct | 31° / 24° | 21 | 6.1 | 12 | 4.9 |
| Nov | 31° / 24° | 29 | 7.2 | 12.1 | 4.6 |
| Dec | 31° / 24° | 79 | 16.1 | 12.1 | 3.9 |
Cloud cover in Spring
The sky is clear or mostly clear about 48% of the time across spring.
Chance of precipitation in Spring
Viseu gets around 77 mm of rain over 23 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 14 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 12 hours in early September to 12 h 06 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.2 kWh/m².
Hazard calendar for Viseu
None of Viseu's seasonal hazards peak in spring. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Viseu's monsoon runs January–May, when most of the year's rain falls.
Is spring a good time to visit Viseu?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Viseu for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Viseu in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Viseu sees daytime highs around 31°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 23 days see rain.
Sea temperature near Viseu in Spring
The nearest coast averages about 28°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 31 km away) is warmest in May at about 29°C and coldest in September near 28°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 28 | Tropical |
| Mar | 28 | Tropical |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 28 | Tropical |
| Aug | 28 | Warm |
| Sep | 28 | Warm |
| Oct | 28 | Warm |
| Nov | 28 | Tropical |
| Dec | 28 | Tropical |
UV index in Viseu in Spring
Clear-sky midday UV across spring averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Viseu peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 19 at about 10 (extreme).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 14 | 15 | 14 | 12 | 11 | 10 | 11 | 12 | 12 | 11 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 10 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in Viseu in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Viseu is worst in February — around 19 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (July, 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) | 16 | 19 | 19 | 14 | 8 | 7 | 7 | 8 | 10 | 12 | 18 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 19 | Moderate |
| Mar | 19 | Moderate |
| Apr | 14 | Moderate |
| May | 8 | Good |
| Jun | 7 | Good |
| Jul | 7 | Good |
| Aug | 8 | Good |
| Sep | 10 | Good |
| Oct | 12 | Good |
| Nov | 18 | Moderate |
| Dec | 18 | Moderate |
Where is Viseu?
Viseu sits at 1.2°S, 46.1°W, 13 m above sea level, in Brazil. The nearest listed city is Carutapera, 13 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 47 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 89 m; within 80 km, only modest variations in elevation — a maximum elevation change of 180 m.
The land around Viseu is covered by trees (41%) and grassland (22%) within 3 km, trees (36%) and mangroves (34%) within 16 km, and trees (35%) and water (34%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- 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 (-1.1967°, -46.14°, elevation 13 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.