Ouro Preto weather in December
December in Ouro Preto: warm, soaked, with clean air — fine if you can take 22 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#11 of 12 months in Ouro Preto · #759 of 1413 destinations to visit in December · comfort 69/100 (tier C)
- Days
- 24°C
- Nights
- 17°C
- Wet days
- 22
- Sun
- 9.3 h
- Humidity
- 82%
- Daylight
- 13 h
Traveller notes on Ouro Preto in December
Other months in Ouro Preto
Brazil's forum notes that March brings less rain than February but still carries the tail end of the wet season's pattern - warm, sunny days followed by a real chance of a heavy afternoon or evening storm, sometimes intense enough locals have a name for it ('as águas de março,' the March rains). For Ouro Preto specifically, that matters more than it would elsewhere: the town's steep, cobbled colonial streets get genuinely slippery when wet, which is worth factoring into footwear and pacing choices while exploring the churches and museums on foot.
Forum posters describe mid-September through early November as one of the better weather windows for this part of Brazil - noticeably warmer and less humid than the April-May stretch some posters compare it against. The one clear caveat posters raise: the rainy season proper doesn't begin until around the first week of November, at which point Ouro Preto's steep, cobbled colonial streets are specifically flagged as becoming slippery and best avoided in heavy rain. September itself sits ahead of that shift, making it a comparatively dry, walkable choice for exploring the hilly historic center before the wetter November-January period sets in.
Add your own note from Ouro Preto's card on the map.
Ouro Preto climate normals — December
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Ouro Preto in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySummer holidays in Brazil, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Ouro Preto's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherOuro Preto's weather peaks July–September.
December coincides with Rainy season landslides.
Best weatherFair weatherToughest weather
What's on in Ouro Preto in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Rainy season landslides
1 Dec – 31 Mar · usuallyLandslide seasonHeavy summer rain on the steep hillsides brings landslides; in January 2022 one on Morro da Forca brought down historic mansions. The civil defence contingency plan runs December to March, and some streets are closed after downpours. Source ↗
- Season
Wet season
MonsoonRisk22 rainy days and about 279 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Ouro Preto — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Ouro Preto?
Ouro Preto in December — FAQ
- Is December a good time to visit Ouro Preto?
- December in Ouro Preto: warm, soaked, with clean air — fine if you can take 22 rainy days. It ranks #11 of 12 months for Ouro Preto on SeasonMap's comfort score (69/100).
- What is the weather like in Ouro Preto in December?
- In December, Ouro Preto averages a daily high of 24.3°C and a low of 16.8°C, with about 279 mm of rain over roughly 22.4 rainy days.
- What is the air quality in Ouro Preto in December?
- Ouro Preto has a mean US Air Quality Index of about 35 in December.
Within 300 km: Rio de Janeiro's Reveillon on Copacabana on 30 Dec – 1 Jan.