- Save up to 15% on October half term holidays
- Pay low deposits from £150pp + kids under 6 stay for free
- Book holidays to Europe, Caribbean, Indian Ocean & more
Rio de Janeiro weather in December 2021
Get the latest coronavirus (Covid-19) updates for Brazil with current travel advice and statistics on new cases per 100,000 and vaccine.
- 2828°C max day temperature
- 2121 days with some rainfall
- 2020°C min night temperature
- 1414 hours of daylight per day
- MModerate heat & humidity
- 207207 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2424°C sea temperature
Recommended for Brazil
The December weather guide for Rio de Janeiro, Brazil shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
How hot is it in Rio de Janeiro in December?
Daytime temperatures usually reach 28°C in Rio de Janeiro in December with moderate heat and humidity, falling to 20°C at night.
How sunny is it in Rio de Janeiro in December?
There are normally 5 hours of bright sunshine each day in Rio de Janeiro in December - that's 38% of daylight hours.
How warm is the sea around Rio de Janeiro in December?
The average sea temperature around Rio de Janeiro in December is 24°C.
Does it rain in Rio de Janeiro in December?
There are usually 21 days with some rain in Rio de Janeiro in December and the average monthly rainfall is 207mm.
Metric (°C / mm) | Imperial (°F / inches)
Rio de Janeiro sunrise & sunset times for December 2021
Browse the sunrise and sunset times for Rio de Janeiro in December 2021. Select a month to view Rio de Janeiro sunrise & sunset times for the next 12 months.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st December 2021||04:59||18:25|
|Thursday, 16th December 2021||05:02||18:35|
|Friday, 31st December 2021||05:10||18:42|
- Check out top deals on tours worldwide in 2021
- Discount varies by sale offer & destination
- Filter deals by theme, style, dates, duration & more
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.