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Petrópolis Weather in December
December in Petrópolis typically sees daytime highs of 30°C (86°F) and nighttime lows of 21°C (70°F). December falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Petrópolis in December
As part of the rainy season, Petrópolis sees around 23 days of rain in December, with an average of 307 mm (12 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in Petrópolis in December
December in Petrópolis brings high temperatures, with highs of 30°C (86°F) and nights around 21°C (70°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights remain mild at 21°C (70°F), making evenings a pleasant time to be outdoors.
Sunshine in Petrópolis in December
With about 182 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Petrópolis. Our weather planner can help you explore destinations with more pleasant weather conditions.
Petrópolis Temperature in December
Min Temperature
21°C (70°F)
Max Temperature
30°C (86°F)
Chance of Rain
75%
Precipitation
307 mm (12 in)
Rainy days
23 days
Humidity
80% *
Sunshine
182 hours *
Percentage Sunshine
*
* Data from: Rio de Janeiro, Brazil (45 KM, 28 Miles).
Petrópolis Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Petrópolis - and find the best time to visit.
Best Places in Brazil in December
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Petrópolis in December
Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Petrópolis in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Petrópolis 3-Day Forecast
More climate data for Petrópolis
Temperature Rainfall Sunshine Humidity
See the full Petrópolis climate overview or explore weather in Brazil.
Popular in December
Where to go in December - average daytime high across popular destinations.
Fortaleza
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