Climate averages 1991–2020
Ceilândia weather
in September.
A hot, fairly dry month: the warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Ceilândia: daytime highs average 29.1°C and nights cool to about 18.2°C. By daytime temperature it is the warmest month of the year.
Expect about 30 mm of rain on roughly 5 days, which makes September a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average September day.
The nearest other city in this atlas is Samambaia (9 km away). In September its highs average 28.5°C, 0.6°C cooler than Ceilândia, with 35 mm of rain.
Among the 448 cities listed in Brazil, Ceilândia ranks joint 150th of 448 for the warmest September highs and joint 95th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Ceilândia is 1.5°C warmer than that mean.
From September to October, average highs fall by 0.6°C to 28.5°C, and monthly rainfall rises from 30 mm to 116 mm.
The annual picture
September 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
Ceilândia climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.8°C18.2°C | 18.2°C | 231 | 23.4 | 12.913 h |
| February | 26.0°C18.1°C | 18.1°C | 202 | 20.7 | 12.613 h |
| March | 25.8°C18.0°C | 18.0°C | 209 | 22.3 | 12.212 h |
| April | 25.8°C17.4°C | 17.4°C | 92 | 13.4 | 11.812 h |
| May | 25.5°C16.0°C | 16.0°C | 17 | 2.9 | 11.411 h |
| June | 25.1°C14.8°C | 14.8°C | 3.9 | 0.7 | 11.211 h |
| July | 25.3°C14.5°C | 14.5°C | 0.3 | 0.1 | 11.311 h |
| August | 27.2°C15.9°C | 15.9°C | 5.5 | 1.4 | 11.612 h |
| September, selected | 29.1°C18.2°C | 18.2°C | 30 | 5.2 | 12.012 h |
| October | 28.5°C18.8°C | 18.8°C | 116 | 15.4 | 12.412 h |
| November | 26.0°C18.1°C | 18.1°C | 213 | 22.9 | 12.813 h |
| December | 25.7°C18.2°C | 18.2°C | 244 | 24.3 | 13.013 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
September in nearby cities
- Samambaia in SeptemberBrazil · 9 kmHigh 28.5°C · Low 17.5°C · 35 mm rain
- Águas Claras in SeptemberBrazil · 12 kmHigh 28.8°C · Low 18.0°C · 34 mm rain
- Riacho Fundo II in SeptemberBrazil · 13 kmHigh 28.6°C · Low 17.4°C · 35 mm rain
- Águas Lindas de Goiás in SeptemberBrazil · 17 kmHigh 29.8°C · Low 18.4°C · 30 mm rain
- Santo Antônio do Descoberto in SeptemberBrazil · 20 kmHigh 30.7°C · Low 19.4°C · 32 mm rain
- Brasília in SeptemberBrazil · 22 kmHigh 29.0°C · Low 17.9°C · 34 mm rain
- Gama in SeptemberBrazil · 25 kmHigh 29.5°C · Low 18.1°C · 35 mm rain
- Santa Maria, Brazil in SeptemberBrazil · 27 kmHigh 28.7°C · Low 17.7°C · 35 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 Ceilândia) is explained once on the Ceilândia year overview and on the Sources, method and limits page.
Águas Lindas de Goiás lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.