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Rondônia Weather in December
During December, Rondônia experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 23°C (73°F). December sits within the rainy season, so expect regular and often heavy rainfall.
Rainfall in Rondônia in December
Rondônia is in the rainy season in December, with rain on around 18 days and an average of 259 mm (10 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in Rondônia in December
December in Rondônia brings typical temperatures with highs around 31°C (88°F) and lows of 23°C (73°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. Nights remain mild at 23°C (73°F), making evenings a pleasant time to be outdoors.If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Rondônia. Our weather planner can help you explore destinations with more pleasant weather conditions.
Rondônia Temperature in December
Min Temperature
23°C (73°F)
Max Temperature
31°C (88°F)
Chance of Rain
61%
Precipitation
259 mm (10 in)
Rainy days
18 days
Rondônia Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rondônia - 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 Rondônia in December
Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything!
What To Do in Rondônia 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
Rondônia 3-Day Forecast
More climate data for Rondônia
See the full Rondônia 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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