Ouro Preto in Summer
In summer (December, January and February), Ouro Preto sees average daytime highs around 27°C and overnight lows near 18°C, with 819 mm of rain over about 60 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 12% of the time across summer, and the air most often feels muggy.
Summer is Ouro Preto's weakest season of the year to visit on our travel score. For the whole year in context, see Ouro Preto's year-round climate.
- Avg daytime high
- 27°C
- warmest season of the year
- Avg overnight low
- 18°C
- Rainfall
- 819 mm
- 60 wet days
- Avg wind
- 7 km/h
- Travel score
- 4.9
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Ouro Preto in Summer
Across summer, daytime highs hold fairly steady around 27°C.
A typical summer day in Ouro Preto reaches about 27°C and drops to 18°C overnight. The warmest of the three months is February, the coolest December.
Ouro Preto 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 | 27° / 18° | 294 | 20 | 13.1 | 4.9 |
| Feb | 27° / 18° | 185 | 15.6 | 12.7 | 5.3 |
| Mar | 26° / 18° | 227 | 19.7 | 12.1 | 5.1 |
| Apr | 25° / 16° | 99 | 13.1 | 11.5 | 6.3 |
| May | 23° / 14° | 48 | 8 | 11 | 7.1 |
| Jun | 23° / 12° | 18 | 3.3 | 10.8 | 7.9 |
| Jul | 23° / 12° | 11 | 2.9 | 10.9 | 8.1 |
| Aug | 24° / 12° | 24 | 4 | 11.3 | 8.1 |
| Sep | 25° / 14° | 83 | 9.4 | 11.9 | 7.0 |
| Oct | 25° / 16° | 139 | 15.3 | 12.5 | 5.9 |
| Nov | 25° / 17° | 283 | 21.8 | 13 | 4.7 |
| Dec | 26° / 18° | 340 | 24.2 | 13.2 | 4.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 12% of the time across summer.
Chance of precipitation in Summer
Ouro Preto gets around 819 mm of rain over 60 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 06 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 Ouro Preto
In summer, Ouro Preto overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Ouro Preto's monsoon runs November–March, when most of the year's rain falls.
Is summer a good time to visit Ouro Preto?
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 reasonable time to visit Ouro Preto for sightseeing.
What to pack for Ouro Preto in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Ouro Preto sees daytime highs around 27°C and nights near 18°C. Pack light clothes and rain gear. Worth having: sun protection. About 60 days see rain.
UV index in Ouro Preto in Summer
Clear-sky midday UV across summer averages around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ouro Preto peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 7 (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 | 8 | 7 | 7 | 9 | 10 | 12 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | High | Very high | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Extreme |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 7 | Very high |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 12 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
Air quality in Ouro Preto 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 Ouro Preto is worst in September — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (January, 11 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 | 13 | 15 | 18 | 18 | 17 | 17 | 26 | 17 | 12 | 12 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 12 | Moderate |
| Mar | 13 | Moderate |
| Apr | 15 | Moderate |
| May | 18 | Moderate |
| Jun | 18 | Moderate |
| Jul | 17 | Moderate |
| Aug | 17 | Moderate |
| Sep | 26 | Moderate |
| Oct | 17 | Moderate |
| Nov | 12 | Moderate |
| Dec | 12 | Good |
Where is Ouro Preto?
Ouro Preto sits at 20.4°S, 43.5°W, 1,201 m above sea level, in Brazil. The nearest listed city is Mariana, 9.0 km away.
Topography around Ouro Preto
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ouro Preto.
Within 3 km, the terrain around Ouro Preto has significant variations in elevation — a maximum elevation change of 579 m around an average of 1,211 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,126 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,793 m.
The land around Ouro Preto is covered by trees (47%) and grassland (34%) within 3 km, trees (66%) and grassland (31%) within 16 km, and trees (51%) and grassland (45%) 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 Ouro Preto (-20.3948°, -43.5052°, elevation 1,201 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.