Brasília
Brazil
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Brasília, Brazil

A road network in Brasília, Brazil, with an extension of the entire city layout
A road network in Brasília, Brazil, with an extension of the entire city layout
The first month of the summer, December, is also a moderately hot month in Brasília, Brazil, with temperature in the range of an average high of 26.2°C (79.2°F) and an average low of 17.5°C (63.5°F).

Temperature

In Brasília, Brazil, the average high-temperature is practically the same as in November - a still warm 26.2°C (79.2°F). In December, in Brasília, Brazil, the average low-temperature is 17.5°C (63.5°F).

Humidity

The most humid month in Brasília is December, with an average relative humidity of 79%.

Rainfall

In Brasília, in December, it is raining for 18 days, with typically 246mm (9.7") of accumulated precipitation. In Brasília, during the entire year, the rain falls for 111 days and collects up to 1540.5mm (60.6") of precipitation.

Daylight

The month with the longest days is December, with an average of 13.1h of daylight.

Sunshine

With an average of 4.5h of sunshine, December has the least sunshine of the year.

UV index

January through March, September through December, with an average maximum UV index of 12, are months with the highest UV index in Brasília. A UV Index estimate of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV radiation for the ordinary person.
In December, the average maximum UV index of 12 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in December in Brasília?

The average high-temperature, in December, in Brasília, is 26.2°C (79.2°F), while the average low-temperature is 17.5°C (63.5°F).

What is the most humid month in Brasília?

The most humid month is December, with an average relative humidity of 79%.

What is the average humidity in December in Brasília?

In December, the average relative humidity is 79%.

How many days does it rain in December in Brasília?

In Brasília, in December, during 18 rainfall days, 246mm (9.7") of precipitation is typically accumulated.

When are the longest days in Brasília?

The month with the longest days in Brasília, Brazil, is December, with an average of 13.1h of daylight.

What is the average length of the day in December in Brasília?

In Brasília, the average length of the day in December is 13.1h.

What is the month with the least sunshine in Brasília?

With an average of 4.5h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Brasília have in December?

The average sunshine in December is 4.5h.

What is the month with the highest UV index in Brasília?

Months with the highest UV index in Brasília are January through March, September through December, with an average maximum UV index of 12.

What is the UV index intensity in December in Brasília?

In December, the average daily maximum UV index in Brasília, Brazil, is 12. A UV Index estimate of 11, and higher, represents an extreme health threat from unprotected exposure to the UV radiation.
Average temperature in December - Brasília, Brazil
  • Average high temperature in December: 26.2°C

The warmest month (with the highest average high temperature) is September (28.3°C).
The month with the lowest average high temperature is July (25.1°C).

  • Average low temperature in December: 17.5°C

Months with the highest average low temperature are March, November and December (17.5°C).
The coldest month (with the lowest average low temperature) is July (12.9°C).

Average humidity in December - Brasília, Brazil
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (49%).

Average rainfall in December - Brasília, Brazil
  • Average rainfall in December: 246mm

The wettest month (with the highest rainfall) is January (247.4mm).
The driest month (with the lowest rainfall) is June (8.7mm).

Average rainfall days in December - Brasília, Brazil
  • Average rainfall days in December: 18 days

The month with the highest number of rainy days is December (18 days).
Months with the lowest number of rainy days are June, July and August (1 days).

Average daylight in December / Average sunshine in December - Brasília, Brazil
  • Average daylight in December: 13.1h

The month with the longest days is December (Average daylight: 13.1h).
The month with shortest days is June (Average daylight: 11.2h).

  • Average sunshine in December: 4.5h

The month with most sunshine is July (Average sunshine: 8.6h).
The month with least sunshine is December (Average sunshine: 4.5h).

Average UV index in December - Brasília, Brazil
  • Average UV index in December: 12

Months with the highest UV index are January, February, March, September, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 8).