Climate averages 1991–2020
Goiânia weather
in December.
A warm, very wet month: the joint 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Goiânia: daytime highs average 27.8°C and nights cool to about 20.0°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 218 mm of rain on roughly 24 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 06 min on an average December day.
The nearest other city in this atlas is Aparecida de Goiânia (16 km away). In December its highs average 27.3°C, about as warm as Goiânia, with 218 mm of rain.
Among the 448 cities listed in Brazil, Goiânia ranks joint 267th of 448 for the warmest December highs and joint 293rd of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Goiânia is 0.7°C cooler than that mean.
From December to January, average highs stay level at 27.7°C, and monthly rainfall rises from 218 mm to 224 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Goiânia climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.7°C20.0°C | 20.0°C | 224 | 22.7 | 13.013 h |
| February | 28.0°C19.8°C | 19.8°C | 175 | 20.3 | 12.613 h |
| March | 27.8°C19.7°C | 19.7°C | 178 | 21.0 | 12.212 h |
| April | 28.0°C18.9°C | 18.9°C | 76 | 12.0 | 11.712 h |
| May | 27.7°C17.2°C | 17.2°C | 14 | 2.8 | 11.311 h |
| June | 27.5°C16.4°C | 16.4°C | 4.7 | 0.9 | 11.211 h |
| July | 27.8°C16.2°C | 16.2°C | 0.9 | 0.3 | 11.211 h |
| August | 30.0°C17.9°C | 17.9°C | 6.0 | 1.0 | 11.612 h |
| September | 31.9°C20.3°C | 20.3°C | 30 | 5.0 | 12.012 h |
| October | 31.1°C20.8°C | 20.8°C | 102 | 14.8 | 12.512 h |
| November | 28.4°C20.0°C | 20.0°C | 196 | 22.3 | 12.913 h |
| December, selected | 27.8°C20.0°C | 20.0°C | 218 | 24.1 | 13.113 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Aparecida de Goiânia in DecemberBrazil · 16 kmHigh 27.3°C · Low 19.6°C · 218 mm rain
- Senador Canedo in DecemberBrazil · 17 kmHigh 27.4°C · Low 19.8°C · 216 mm rain
- Trindade in DecemberBrazil · 25 kmHigh 27.5°C · Low 20.0°C · 236 mm rain
- Anápolis in DecemberBrazil · 51 kmHigh 26.3°C · Low 18.9°C · 258 mm rain
- Santo Antônio do Descoberto in DecemberBrazil · 135 kmHigh 27.1°C · Low 19.4°C · 225 mm rain
- Caldas Novas in DecemberBrazil · 136 kmHigh 28.3°C · Low 20.5°C · 240 mm rain
- Águas Lindas de Goiás in DecemberBrazil · 145 kmHigh 26.0°C · Low 18.3°C · 244 mm rain
- Gama in DecemberBrazil · 146 kmHigh 26.2°C · Low 18.4°C · 245 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Goiânia) is explained once on the Goiânia year overview and on the Sources, method and limits page.
Aparecida de Goiânia lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.