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Rio de Janeiro weather in December

Weather in Rio de Janeiro: December

Average day temperature: 85.3°F
Average night temperature: 74.4°F
Sea water temperature: 76.0°F
Number of sunny days: 12 days
Day length: 13.4 - 13.6 hours
Number of rainy days: 9 days
Precipitation totals: 4.9 in.

Air temperature in December, °F

Show year:
2023
2022
2021

The highest day temperature during December of 2023 was 92°F. At the same time the lowest night temperature was 69°F. Day and night temperature averages during December were 82.4°F and 74.2°F.

Sea water temperature in Rio de Janeiro in December, °F

Show year:
2024
2023
2022

The average sea water temperature in December of 2023 was 77.7°F. The highest and lowest sea temperatures during the month were 80.4°F and 74.5°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in December is almost equal.

Precipitation total in December, in.

Precipitation total value in Rio de Janeiro in December is 5.0 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 6.1 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 6.4.

Best time for vacation in Rio de Janeiro

Sunniest months:
July 21 days
August 19 days
May 19 days
Warmest months:
February 88.7 °F
January 87.8 °F
March 87.0 °F
Warmest sea temp:
February 79.7 °F
January 79.4 °F
March 79.1 °F
Coldest months:
August 79.4 °F
June 79.8 °F
July 80.1 °F
Rainiest months:
November 10 days
December 9 days
January 8 days
Windiest months:
October 7.3 mph
September 7.2 mph
August 6.9 mph

Rio de Janeiro on a weather map

Rio de Janeiro
+79°F
NE 8 mph
Feels like: +84°F
Precip.: 100%
Places in Brazil:
Name
°F
+81°F
+88°F
+70°F
+82°F
+84°F
+73°F
+82°F
+81°F
+77°F
+81°F
+79°F
+73°F
+77°F
+86°F
24 Hours Forecast
Rio de Janeiro
Local time: 15:33
December 21, saturday
1800
79°F
NE
5 mph
2100
77°F
E
2 mph
December 22, sunday
0000
75°F
E
5 mph
0300
75°F
SE
4 mph
0600
75°F
SE
3 mph
0900
77°F
E
1 mph
1200
81°F
N
4 mph
1500
77°F
N
6 mph
Units of measurement: °C / °F