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Mariana Weather in December
Mariana in December sees high temperatures, with highs around 28°C (82°F) and overnight lows of 18°C (64°F). Rainfall is at its peak this month, around 345 mm (14 in) on average, so waterproofs are essential.
Rainfall in Mariana in December
As part of the rainy season, Mariana sees around 25 days of rain in December, with an average of 345 mm (14 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in Mariana in December
Mariana in December gets highs of 28°C (82°F) during the day and drops to 18°C (64°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 18°C (64°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.December in Mariana has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Mariana Temperature in December
Min Temperature
18°C (64°F)
Max Temperature
28°C (82°F)
Chance of Rain
82%
Precipitation
345 mm (14 in)
Rainy days
25 days
Mariana Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mariana - 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 Mariana in December
Warm but pleasant conditions in Mariana in December. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.
What To Do in Mariana in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Mariana 3-Day Forecast
More climate data for Mariana
See the full Mariana climate overview or explore weather in Brazil.
Popular in December
Where to go in December - average daytime high across popular destinations.
Fortaleza
31°C (88°F) Rio de Janeiro
30°C (86°F) Salvador
29°C (84°F) Búzios
27°C (81°F) Gramado28°C (82°F) Florianópolis28°C (82°F) Sao Paulo28°C (82°F) Paraty27°C (81°F) Bucket list
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