Rio Weather in December

Rio in December sees moderate daytime temperatures of 13°C (55°F) and nighttime lows of 6°C (43°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.

Rainfall in Rio in December

As the month with the highest rainfall, make sure to have an umbrella to manage the showers. On average, there are about 13 days with rain during this month, averaging 133 mm (5.2 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Rio in December

Temperatures in Rio in December top out at 13°C (55°F) and drop to 6°C (43°F) overnight. During December, the winter season is in full swing. Conditions are often most pleasant around the middle of the day. Nights drop to 6°C (43°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Rio in December

The month brings about 108 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Rio in December

December has wind speeds averaging 1 m/s (2 knots). You can expect very gentle conditions with light air movement on typical days. Since this is an average, daily weather varies from perfectly still moments to some breezier days.

Average water temperature in December

The water temperature is 18°C (64°F). It's not warm, but most people find it perfectly fine for a swim once they're in.

December in Rio 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.