December weather forecast
Goiânia, Brazil

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Weather in December

December signifies the culmination of the year, bringing a return of early year weather patterns to Goiânia. The city experiences a rise in rainfall to 268mm (10.55") which is spread over 19 days, marking it as the wettest month alongside January. As the year closes, daylight stretches to 13.1 hours, yet with only 5.6 hours of sunshine. December also brings back the high humidity levels experienced at the start of the year. Moving forward to January, anticipate similar weather conditions with warmth, rain, and high humidity.

Temperature

December's arrival in Goiânia brings an average high-temperature of a still warm 28.9°C (84°F), slightly deviating from November's 29.7°C (85.5°F). Goiânia's nighttime temperature in December falls to an average of 19.7°C (67.5°F).

Heat index

Throughout December, the heat index is computed to be a hot 34°C (93.2°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

February and December, with an average relative humidity of 76%, are the most humid months in Goiânia, Brazil.

Rainfall

December is the month with the most rainfall. Rain falls for 19 days and accumulates 268mm (10.55") of precipitation.

Daylight

The month with the longest days is December, with an average of 13h and 6min of daylight.
On the first day of the month, sunrise is at 05:34 and sunset at 18:37. On the last day of December, in Goiânia, sunrise is at 05:47 and sunset at 18:53 -03.

Sunshine

The months with the least sunshine are February and December, with an average of 5.6h of sunshine.
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Frequently asked questions

How hot is December in Goiânia?

The average high-temperature, in December, in Goiânia, is 28.9°C (84°F), while the average low-temperature is 19.7°C (67.5°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in December is computed to be 34°C (93.2°F).

What is the most humid month in Goiânia?

February and December, with an average relative humidity of 76%, are most humid months in Goiânia.

What is the average humidity in December in Goiânia?

In December, the average relative humidity in Goiânia is 76%.

What is the rainiest month in Goiânia?

The month with the most rainfall in Goiânia, Brazil, is December, when the rain falls for 19 days and typically aggregates up to 268mm (10.55") of precipitation.

How much does it rain in Goiânia in December?

In Goiânia, Brazil, in December, it is raining for 19 days, with typically 268mm (10.55") of accumulated precipitation.

When are the longest days in Goiânia?

With an average of 13h and 6min of daylight, December has the longest days of the year.

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

The average day length in December in Goiânia is 13h and 7min.

What time are sunrise and sunset in December in Goiânia?

On the first day of December in Goiânia, Brazil, sunrise is at 05:34 and sunset at 18:37. On the last day of the month, sunrise is at 05:47 and sunset at 18:53 -03.

What is the month with the least sunshine in Goiânia?

The months with the least sunshine are February and December, with an average of 5.6h of sunshine.

How many hours of sunshine does Goiânia have in December?

The average sunshine duration in December is 5.6h.
Average humidity
Average rainfall days
Average daylight
Average sunshine

Average temperature in December
Goiânia, Brazil

Average temperature in December - Goiânia, Brazil
  • Average high temperature in December: 28.9°C

The warmest month (with the highest average high temperature) is September (31.9°C).
The month with the lowest average high temperature is June (28.7°C).

  • Average low temperature in December: 19.7°C

The months with the highest average low temperature are January, February and December (19.7°C).
The coldest month (with the lowest average low temperature) is July (13.2°C).

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Average humidity in December
Goiânia, Brazil

Average humidity in December - Goiânia, Brazil
  • Average humidity in December: 76%

The months with the highest relative humidity are February and December (76%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in December
Goiânia, Brazil

Average rainfall in December - Goiânia, Brazil
  • Average rainfall in December: 267.9mm

The wettest month (with the highest rainfall) is December (267.9mm).
The driest month (with the least rainfall) is July (6.6mm).

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Average rainfall days in December
Goiânia, Brazil

Average rainfall days in December - Goiânia, Brazil
  • Average rainfall days in December: 19 days

The month with the highest number of rainy days is December (19 days).
The months with the least rainy days are June and July (1 days).

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Average daylight in December /
Average sunshine in December
Goiânia, Brazil

Average daylight in December / Average sunshine in December - Goiânia, Brazil
  • Average daylight in December: 13h and 1min

The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 18min).
The months with the least sunshine are February and December (Average sunshine: 5h and 36min).

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Goiânia, Brazil

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