Goiás Weather in December
What's the weather like in Goiás (Goiás) in December 2025?
The climate in Goiás during December can be summarized as hot, humid and very wet.
December is in the summer in Goiás and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a muggy 30°C (85°F), whilst at night 20°C (68°F) is normal.
| Daytime temperature | 29.7°C 85.4°F |
|---|---|
| Nightly temperature | 19.8°C 67.6°F |
| Average temperature | 24.7°C 76.5°F |
| Daily sunshine | 4.8 hrs |
| Avg rainfall | 293 mm 11.5 ins |
| Rainy days | 26 days |
| Sea temperature | 25.5°C 77.9°F |
| Humidity | 79% |
| Windspeed | 4.7kph 3 mph |
On average December is the wettest month of the year in Goiás with around 293mm 11.5 inches of rain making it a very wet time to visit. This rainfall is typically spread over 26 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.8 hours of sunshine per day.
December temperatures in Goiás
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Goiás in December 2025.
Other monthly averages
Best places to visit in December
Goiás weather stats
| Hottest month: | September | 33°C 91.4°F |
|---|---|---|
| Driest month: | July | 9mm 0.4ins |
| Sunniest month: | July | 9.1hrs |
| Coldest month: | June | 30°C 86°F |
| Wettest month: | December | 293mm 11.5ins |
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