Climate averages 1991–2020
Sinop 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 Sinop: daytime highs average 33.6°C and nights cool to about 22.0°C. By daytime temperature it is the warmest month of the year.
Expect about 53 mm of rain on roughly 9 days, which makes September a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average September day.
The nearest other city in this atlas is Sorriso (79 km away). In September its highs average 33.6°C, about as warm as Sinop, with 43 mm of rain.
Among the 448 cities listed in Brazil, Sinop ranks joint 35th of 448 for the warmest September highs and joint 182nd of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Sinop is 6.1°C warmer than that mean.
From September to October, average highs fall by 2.1°C to 31.5°C, and monthly rainfall rises from 53 mm to 146 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
Sinop climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.4°C21.7°C | 21.7°C | 305 | 28.7 | 12.713 h |
| February | 28.6°C21.6°C | 21.6°C | 282 | 26.6 | 12.512 h |
| March | 28.8°C21.6°C | 21.6°C | 256 | 27.0 | 12.212 h |
| April | 29.2°C21.4°C | 21.4°C | 129 | 19.4 | 11.812 h |
| May | 30.2°C20.7°C | 20.7°C | 31 | 6.6 | 11.612 h |
| June | 31.1°C19.7°C | 19.7°C | 4.8 | 1.0 | 11.411 h |
| July | 31.7°C19.4°C | 19.4°C | 1.4 | 0.4 | 11.511 h |
| August | 33.5°C20.6°C | 20.6°C | 6.6 | 1.3 | 11.712 h |
| September, selected | 33.6°C22.0°C | 22.0°C | 53 | 8.7 | 12.012 h |
| October | 31.5°C22.2°C | 22.2°C | 146 | 20.1 | 12.412 h |
| November | 29.4°C21.9°C | 21.9°C | 232 | 25.1 | 12.613 h |
| December | 28.6°C21.8°C | 21.8°C | 296 | 27.8 | 12.813 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
- Sorriso in SeptemberBrazil · 79 kmHigh 33.6°C · Low 22.4°C · 43 mm rain
- Lucas do Rio Verde in SeptemberBrazil · 141 kmHigh 33.3°C · Low 22.4°C · 50 mm rain
- Tangará da Serra in SeptemberBrazil · 374 kmHigh 32.3°C · Low 21.2°C · 56 mm rain
- Cuiabá in SeptemberBrazil · 420 kmHigh 33.7°C · Low 22.6°C · 47 mm rain
- Vilhena in SeptemberBrazil · 514 kmHigh 30.8°C · Low 20.9°C · 84 mm rain
- Rondonópolis in SeptemberBrazil · 521 kmHigh 34.3°C · Low 22.4°C · 43 mm rain
- Cáceres, Brazil in SeptemberBrazil · 523 kmHigh 34.0°C · Low 23.1°C · 35 mm rain
- Cacoal in SeptemberBrazil · 649 kmHigh 33.3°C · Low 23.0°C · 90 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 Sinop) is explained once on the Sinop year overview and on the Sources, method and limits page.