Santa Rosa de Viterbo in Summer
In summer (December, January and February), Santa Rosa de Viterbo sees average daytime highs around 30°C and overnight lows near 20°C, with 609 mm of rain over about 62 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 16% of the time across summer, and the air most often feels muggy.
Summer is Santa Rosa de Viterbo's weakest season of the year to visit on our travel score. For the whole year in context, see Santa Rosa de Viterbo's year-round climate.
- Avg daytime high
- 30°C
- 2nd-warmest season
- Avg overnight low
- 20°C
- Rainfall
- 609 mm
- 62 wet days
- Avg wind
- 7 km/h
- Travel score
- 3.8
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Santa Rosa de Viterbo in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in Santa Rosa de Viterbo reaches about 30°C and drops to 20°C overnight. The warmest of the three months is February, the coolest December.
Santa Rosa de Viterbo weather by month
How the three summer 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 | 29° / 21° | 239 | 22.3 | 13.2 | 3.7 |
| Feb | 30° / 20° | 167 | 18.1 | 12.7 | 3.9 |
| Mar | 29° / 20° | 144 | 17.2 | 12.2 | 4.5 |
| Apr | 29° / 18° | 59 | 8.3 | 11.5 | 6.1 |
| May | 26° / 15° | 44 | 6.1 | 11 | 7.5 |
| Jun | 26° / 14° | 26 | 3.2 | 10.7 | 8.1 |
| Jul | 26° / 13° | 21 | 2.4 | 10.8 | 8.3 |
| Aug | 28° / 15° | 19 | 2.9 | 11.3 | 7.6 |
| Sep | 30° / 17° | 67 | 7.3 | 11.9 | 5.7 |
| Oct | 30° / 19° | 104 | 13.1 | 12.5 | 4.6 |
| Nov | 30° / 20° | 159 | 17 | 13 | 4.3 |
| Dec | 29° / 20° | 203 | 21.7 | 13.3 | 3.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 16% of the time across summer.
Chance of precipitation in Summer
Santa Rosa de Viterbo gets around 609 mm of rain over 62 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 7 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 12 min in early December to 12 h 30 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.7 kWh/m².
Hazard calendar for Santa Rosa de Viterbo
In summer, Santa Rosa de Viterbo overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Santa Rosa de Viterbo's monsoon runs November–March, when most of the year's rain falls.
Is summer a good time to visit Santa Rosa de Viterbo?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Santa Rosa de Viterbo.
What to pack for Santa Rosa de Viterbo in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Santa Rosa de Viterbo sees daytime highs around 30°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 62 days see rain.
UV index in Santa Rosa de Viterbo in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santa Rosa de Viterbo peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (high).
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) | 15 | 15 | 13 | 10 | 7 | 6 | 6 | 8 | 9 | 11 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | Very high | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Very high |
| May | 7 | Very high |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 9 | Very high |
| Oct | 11 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
Air quality in Santa Rosa de Viterbo in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Santa Rosa de Viterbo is worst in September — around 32 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (November, 10 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) | 11 | 12 | 12 | 13 | 15 | 15 | 16 | 23 | 32 | 16 | 10 | 10 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 12 | Good |
| Mar | 12 | Good |
| Apr | 13 | Moderate |
| May | 15 | Moderate |
| Jun | 15 | Moderate |
| Jul | 16 | Moderate |
| Aug | 23 | Moderate |
| Sep | 32 | Moderate |
| Oct | 16 | Moderate |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Santa Rosa de Viterbo?
Santa Rosa de Viterbo sits at 21.5°S, 47.4°W, 677 m above sea level, in Brazil. The nearest listed city is Cajuru, 23 km away.
Topography around Santa Rosa de Viterbo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Rosa de Viterbo.
Within 3 km, the terrain around Santa Rosa de Viterbo has only modest variations in elevation — a maximum elevation change of 229 m around an average of 688 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 379 m; within 80 km, large variations in elevation — a maximum elevation change of 1,085 m.
The land around Santa Rosa de Viterbo is covered by trees (35%) and cropland (33%) within 3 km, cropland (41%) and trees (40%) within 16 km, and cropland (45%) and trees (36%) 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 Santa Rosa de Viterbo (-21.4728°, -47.3631°, elevation 677 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.