Brasília weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: May – August
What is the weather like in Brasília in September?
In September, Brasília is hot: daytime highs average 30 °C, and nights cool down to about 19 °C. The sun shines for around 8 hours a day. Rain falls on about 5 days, adding up to 27 mm. On about 13 days the thermometer climbs to 30 °C or more. All in all, September is a good month for a holiday in Brasília.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 97 | 77 | 55 |
| Day | 27° | 30° | 29° |
| Night | 16° | 19° | 19° |
| Sun | 9 h | 8 h | 6 h |
| Rain days | 1 | 5 | 15 |
More details for September
- Daylight
- 11 h 59 min06:07 – 18:07
- UV index
- 12 · extremeclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 39 %on averageAll months
- Hot days
- 13 days30 °C or moreAll months
- Time zone
- UTC−3America/Sao_Paulo
How the score comes together
- Temperatureweight 50 %67 %
- Sunshineweight 20 %75 %
- Few rainy daysweight 30 %93 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
Brasília in September: quick answers
Is Brasília hot in September?
Yes. In September, Brasília is hot: daytime highs average 30 °C and nights stay around 19 °C. On about 13 days the thermometer climbs to 30 °C or more.
Does it rain much in Brasília in September?
Rain falls on about 5 days, adding up to 27 mm.
Brasília month by month
The whole year in BrasíliaAll destinations: BrazilWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences