Climate averages 1991–2020
Cuiabá weather
in September.
A hot, moderately wet 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 Cuiabá: daytime highs average 33.7°C and nights cool to about 22.6°C. By daytime temperature it is the warmest month of the year.
Expect about 47 mm of rain on roughly 7 days, which makes September a moderately wet 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 Cáceres, Brazil (177 km away). In September its highs average 34.0°C, about as warm as Cuiabá, with 35 mm of rain.
Among the 448 cities listed in Brazil, Cuiabá ranks joint 32nd of 448 for the warmest September highs and joint 162nd of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Cuiabá is 6.2°C warmer than that mean.
From September to October, average highs fall by 0.7°C to 33.0°C, and monthly rainfall rises from 47 mm to 132 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
Cuiabá climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.5°C23.6°C | 23.6°C | 248 | 25.7 | 12.913 h |
| February | 30.3°C23.5°C | 23.5°C | 221 | 24.6 | 12.613 h |
| March | 30.4°C23.3°C | 23.3°C | 208 | 25.2 | 12.212 h |
| April | 30.3°C22.5°C | 22.5°C | 100 | 15.1 | 11.812 h |
| May | 29.6°C20.5°C | 20.5°C | 35 | 5.6 | 11.411 h |
| June | 29.9°C19.2°C | 19.2°C | 11 | 1.4 | 11.211 h |
| July | 30.3°C18.4°C | 18.4°C | 5.8 | 0.8 | 11.311 h |
| August | 32.5°C20.3°C | 20.3°C | 11 | 1.9 | 11.612 h |
| September, selected | 33.7°C22.6°C | 22.6°C | 47 | 7.1 | 12.012 h |
| October | 33.0°C24.0°C | 24.0°C | 132 | 17.4 | 12.412 h |
| November | 31.5°C23.7°C | 23.7°C | 179 | 21.0 | 12.813 h |
| December | 30.8°C23.8°C | 23.8°C | 214 | 25.2 | 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
- Cáceres, Brazil in SeptemberBrazil · 177 kmHigh 34.0°C · Low 23.1°C · 35 mm rain
- Rondonópolis in SeptemberBrazil · 184 kmHigh 34.3°C · Low 22.4°C · 43 mm rain
- Tangará da Serra in SeptemberBrazil · 184 kmHigh 32.3°C · Low 21.2°C · 56 mm rain
- Lucas do Rio Verde in SeptemberBrazil · 281 kmHigh 33.3°C · Low 22.4°C · 50 mm rain
- Sorriso in SeptemberBrazil · 342 kmHigh 33.6°C · Low 22.4°C · 43 mm rain
- Corumbá in SeptemberBrazil · 414 kmHigh 32.4°C · Low 21.4°C · 51 mm rain
- Sinop in SeptemberBrazil · 420 kmHigh 33.6°C · Low 22.0°C · 53 mm rain
- Mineiros in SeptemberBrazil · 437 kmHigh 30.6°C · Low 19.0°C · 58 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 Cuiabá) is explained once on the Cuiabá year overview and on the Sources, method and limits page.