Climate averages 1991–2020
Sinop weather
in December.
A hot, very wet month: the joint 10th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Sinop: daytime highs average 28.6°C and nights cool to about 21.8°C. By daytime temperature it is the joint 10th warmest of the 12 months.
Expect about 296 mm of rain on roughly 28 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 48 min on an average December day.
The nearest other city in this atlas is Sorriso (79 km away). In December its highs average 28.9°C, about as warm as Sinop, with 230 mm of rain.
Among the 448 cities listed in Brazil, Sinop ranks joint 202nd of 448 for the warmest December highs and 433rd of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Sinop is 0.1°C warmer than that mean.
From December to January, average highs fall by 0.2°C to 28.4°C, and monthly rainfall rises from 296 mm to 305 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Sorriso in DecemberBrazil · 79 kmHigh 28.9°C · Low 22.1°C · 230 mm rain
- Lucas do Rio Verde in DecemberBrazil · 141 kmHigh 29.0°C · Low 22.2°C · 232 mm rain
- Tangará da Serra in DecemberBrazil · 374 kmHigh 29.6°C · Low 22.4°C · 209 mm rain
- Cuiabá in DecemberBrazil · 420 kmHigh 30.8°C · Low 23.8°C · 214 mm rain
- Vilhena in DecemberBrazil · 514 kmHigh 27.7°C · Low 21.1°C · 259 mm rain
- Rondonópolis in DecemberBrazil · 521 kmHigh 30.8°C · Low 23.2°C · 250 mm rain
- Cáceres, Brazil in DecemberBrazil · 523 kmHigh 31.5°C · Low 24.3°C · 165 mm rain
- Cacoal in DecemberBrazil · 649 kmHigh 29.4°C · Low 22.8°C · 284 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.