Climate averages 1991–2020
São José do Rio Preto weather
in December.
A hot, very wet month: the joint 5th 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 São José do Rio Preto: daytime highs average 29.0°C and nights cool to about 21.5°C. By daytime temperature it is the joint 5th warmest of the 12 months.
Expect about 234 mm of rain on roughly 23 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 22 min on an average December day.
The nearest other city in this atlas is Catanduva (55 km away). In December its highs average 29.0°C, about as warm as São José do Rio Preto, with 225 mm of rain.
Among the 448 cities listed in Brazil, São José do Rio Preto ranks joint 170th of 448 for the warmest December highs and joint 345th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; São José do Rio Preto is 0.6°C warmer than that mean.
From December to January, average highs fall by 0.1°C to 28.9°C, and monthly rainfall rises from 234 mm to 271 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
São José do Rio Preto climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.9°C21.7°C | 21.7°C | 271 | 23.5 | 13.213 h |
| February | 29.1°C21.6°C | 21.6°C | 204 | 20.7 | 12.813 h |
| March | 28.6°C21.1°C | 21.1°C | 184 | 20.1 | 12.212 h |
| April | 28.2°C19.6°C | 19.6°C | 70 | 9.4 | 11.612 h |
| May | 26.2°C16.8°C | 16.8°C | 47 | 4.9 | 11.111 h |
| June | 25.9°C15.9°C | 15.9°C | 26 | 3.1 | 10.911 h |
| July | 26.5°C15.8°C | 15.8°C | 15 | 2.3 | 11.011 h |
| August | 29.0°C17.2°C | 17.2°C | 19 | 2.6 | 11.411 h |
| September | 30.7°C19.4°C | 19.4°C | 59 | 6.9 | 12.012 h |
| October | 30.8°C20.8°C | 20.8°C | 119 | 13.2 | 12.613 h |
| November | 29.4°C20.8°C | 20.8°C | 172 | 17.6 | 13.113 h |
| December, selected | 29.0°C21.5°C | 21.5°C | 234 | 22.9 | 13.413 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
- Catanduva in DecemberBrazil · 55 kmHigh 29.0°C · Low 21.2°C · 225 mm rain
- Votuporanga in DecemberBrazil · 76 kmHigh 28.9°C · Low 21.4°C · 227 mm rain
- Barretos in DecemberBrazil · 89 kmHigh 29.1°C · Low 21.4°C · 226 mm rain
- Bebedouro in DecemberBrazil · 95 kmHigh 28.8°C · Low 21.0°C · 219 mm rain
- Lins in DecemberBrazil · 103 kmHigh 29.7°C · Low 21.8°C · 199 mm rain
- Fernandópolis in DecemberBrazil · 108 kmHigh 28.9°C · Low 21.5°C · 223 mm rain
- Birigui in DecemberBrazil · 112 kmHigh 29.7°C · Low 22.0°C · 182 mm rain
- Araçatuba in DecemberBrazil · 118 kmHigh 29.8°C · Low 22.2°C · 188 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 São José do Rio Preto) is explained once on the São José do Rio Preto year overview and on the Sources, method and limits page.