December · Brazil
Best time to visit Rio de Janeiro in December Weather, crowds & prices
Weather in Rio de Janeiro in December
Average temperature 25°C, 140 mm of rain, about 27 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
7.9/10
Ranked #11 of 12 months
- Avg temp
- 25°C
- Rainfall
- 140 mm
- Humidity
- 81%
- Days with 6h+ sun
- 27
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Rio de Janeiro scores 7.9/10 for beach and coastal travel - ranked #11 of 12. Expect around 25°C, 140 mm of rain, and roughly 27 days with 6+ hours of sunshine this month.
Golden shores, verdant peaks, and carnival spirit shine from late summer through Rio's gentle May–September days.
December in Rio de Janeiro — reliably good (11th best month)
With 25°C (77°F) on average, December delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
140 mm of rain makes this a wet month here, though with about 27 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.9/10 on the same scale — 11th of 12 months, versus 9.2/10 for the best month here.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
Expect low-season pricing, and crowds are light for this destination.
Frequently asked
- What is the weather like in Rio de Janeiro in December?
- In December, Rio de Janeiro averages 25°C, 140 mm of rain, and about 27 days with 6+ hours of sunshine. Its climate-comfort score is 7.9/10.
- Is December a good time to visit Rio de Janeiro?
- December earns a 7.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Rio de Janeiro in December?
- Expect about 140 mm of rain in December. Average humidity is 81% and there are about 27 days with 6+ hours of sunshine.
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