Goiânia weather in December
In December, Goiânia has an average high of 28 °C83 °F and an average low of 20 °C67 °F, with about 234 mm9.2 in of precipitation. It is the 4th warmest month of the year and ranks 2nd for precipitation.
How December compares with other months
Compared with November, December is 0.6 °C1.1 °F cooler on average and wetter by 40 mm1.6 in. Compared with January, December is about the same temperature. Daylight lasts about 13.1 hours around the middle of the month. Average relative humidity is 80% and the average cloud amount 82%.
Is December a good time to visit Goiânia?
December is not among the most comfortable months by our comfort score: it is hot (average high 28 °C83 °F), it is fairly wet (234 mm9.2 in) and it is humid (80%). The most comfortable months in Goiânia are May–July.
What to wear in December
For Goiânia in December, pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Goiânia | 2883 | 2067 | 2349.2 |
| Aparecida de Goiânia | 2882 | 1966 | 2158.5 |
| Anápolis | 2780 | 1865 | 2379.3 |
| Gama | 2680 | 1864 | 2218.7 |
| Luziânia | 2781 | 1865 | 2248.8 |
| Valparaíso de Goiás | 2679 | 1864 | 2218.7 |
| Ceilândia | 2678 | 1763 | 2218.7 |
| Brasília | 2679 | 1763 | 2218.7 |
| Itumbiara | 3086 | 2271 | 2078.2 |
Nearby places that are more than 1 °C1.8 °F warmer in December: Itumbiara; cooler: Anápolis, Gama, Valparaíso de Goiás and Ceilândia.
Other months in Goiânia
- January28 °C82 °F / 19 °C67 °F
- February28 °C82 °F / 19 °C67 °F
- March28 °C82 °F / 19 °C66 °F
- April27 °C81 °F / 18 °C64 °F
- May26 °C80 °F / 15 °C59 °F
- June27 °C80 °F / 14 °C57 °F
- July28 °C83 °F / 14 °C57 °F
- August32 °C89 °F / 16 °C61 °F
- September34 °C93 °F / 19 °C67 °F
- October33 °C91 °F / 20 °C68 °F
- November29 °C85 °F / 20 °C67 °F
- December28 °C83 °F / 20 °C67 °F
Frequently asked questions
How warm is Goiânia in December?
In December the average high in Goiânia is 28 °C (83 °F) and the average low is 20 °C (67 °F).
Does it rain a lot in Goiânia in December?
On average about 234 mm (9.2 in) of precipitation falls in December; it ranks 2nd of the 12 months.
Is December the warmest month in Goiânia?
No. The warmest month in Goiânia is September, with an average high of 34 °C (93 °F). The coldest month is July, with an average low of 14 °C (57 °F).
How long is the day in Goiânia in December?
In the middle of December the day in Goiânia lasts about 13.1 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Goiânia in December?
The average relative humidity in December is about 80%. Combined with warm days, it can feel muggy.
How cloudy is Goiânia in December?
On average about 82% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.