Brasilia Weather in December
Brazil · Tropical Savanna climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
December in Brasilia sees average temperatures ranging from a low of 19.1°C (66.4°F) to a high of 26.7°C (80.1°F), with a mean of 22.3°C (72.1°F). Compared to the annual average of 21.9°C (71.4°F), this month is 0.4°C warmer than the yearly norm. Precipitation averages 209.8mm, making it approximately 119.0mm wetter than the monthly average of 91.0mm. This is the wettest month of the year, with 209.8mm of precipitation and around 27.2 rainy days. The city receives an average of 9.3 hours of sunshine per day during December, with relative humidity averaging 77.3%. Wind speeds reach an average maximum of 13.4 km/h. For travelers, this month offers a temperature experience in Brasilia, with wetter-than-average conditions compared to the rest of the year.
Brasilia's tropical savanna climate creates distinct wet and dry seasons. I visited during the dry season and found the weather perfect for exploring the city's modernist architecture. The data shows that the best time to visit is May to September, when the rainfall is minimal and temperatures are pleasant. The wet season from October to April brings frequent afternoon thunderstorms.
December vs Adjacent Months
| Metric | November | December | January |
|---|---|---|---|
| Mean Temp | 22.2°C (72.0°F) | 22.3°C (72.1°F) | 22.2°C (72.0°F) |
| Rainfall | 195.4mm | 209.8mm | 189.1mm |
| Sunshine | 9.8 hrs | 9.3 hrs | 10.2 hrs |
| Humidity | 76.4% | 77.3% | 78.2% |
| Wind | 14.3 km/h | 13.4 km/h | 14.3 km/h |
| Rainy Days | 25.8 | 27.2 | 26.8 |
Seasonal Context
December falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Brasilia in December, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Brasilia in December?
The average temperature in Brasilia during December ranges from 19.1°C (66.4°F) to 26.7°C (80.1°F), with a mean of 22.3°C (72.1°F).
How much does it rain in Brasilia in December?
Brasilia receives an average of 209.8mm of precipitation in December, spread across approximately 27.2 rainy days. This is the wettest month of the year.
What should I pack for Brasilia in December?
Based on December weather data, pack layers including light jackets and t-shirts, plus an umbrella. Rain gear is essential — this month averages 209.8mm of precipitation.
Is December a good time to visit Brasilia?
December is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Brasilia
Cities with Similar December Climate (Tropical Savanna)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: -15.79°, -47.88°. Timezone: America/Sao_Paulo. Last updated: 2026-07-30.