Rio de Janeiro Weather in January

What's the weather like in Rio de Janeiro, Brazil in January 2018?

The climate in Rio de Janeiro during January can be summarized as hot, humid and very wet.

January is in the summer in Rio de Janeiro and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 21°C (70°F) is normal.

Rio de Janeiro weather averages (imperial / metric)
Daytime temperature 29.7°C 85.5°F
Nightly temperature 21.3°C 70.3°F
Average temperature 25.5°C 77.9°F
Daily sunshine 6.8 hrs
Avg rainfall 203 mm 8 ins
Rainy days 20 days
Sea temperature 25.7°C 78.2°F
Humidity 79%
Windspeed 9kph 6 mph

On average January is the 2nd wettest month of the year in Rio de Janeiro with around 203mm 8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.8 hours of sunshine per day.

January temperatures in Rio de Janeiro

January rainfall

January hourly sunshine

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in January 2018.

Other monthly averages

Rio de Janeiro weather stats

Rio de Janeiro weather statistics
Hottest month: February 29.9°C 85.8°F
Driest month: July 66mm 2.6ins
Sunniest month: July 6.6hrs
Coldest month: July 24.2°C 75.6°F
Wettest month: December 207mm 8.1ins
Map showing location of Rio de Janeiro (-22.90278, -43.2075)

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