Climate averages 1991–2020
Birigui weather
in December.
A hot, very wet month: the 4th 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 Birigui: daytime highs average 29.7°C and nights cool to about 22.0°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 182 mm of rain on roughly 20 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 24 min on an average December day.
The nearest other city in this atlas is Araçatuba (13 km away). In December its highs average 29.8°C, about as warm as Birigui, with 188 mm of rain.
Among the 448 cities listed in Brazil, Birigui ranks joint 120th of 448 for the warmest December highs and 211th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Birigui is 1.3°C warmer than that mean.
From December to January, average highs fall by 0.4°C to 29.4°C, and monthly rainfall rises from 182 mm to 243 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
Birigui climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.4°C22.2°C | 22.2°C | 243 | 22.1 | 13.313 h |
| February | 29.5°C22.1°C | 22.1°C | 177 | 18.8 | 12.813 h |
| March | 29.1°C21.6°C | 21.6°C | 141 | 17.8 | 12.212 h |
| April | 28.6°C19.8°C | 19.8°C | 57 | 7.4 | 11.612 h |
| May | 26.3°C16.7°C | 16.7°C | 46 | 5.6 | 11.111 h |
| June | 26.0°C15.6°C | 15.6°C | 29 | 3.5 | 10.911 h |
| July | 26.6°C15.2°C | 15.2°C | 19 | 2.5 | 11.011 h |
| August | 29.2°C16.5°C | 16.5°C | 20 | 2.9 | 11.411 h |
| September | 30.8°C18.9°C | 18.9°C | 58 | 6.5 | 12.012 h |
| October | 30.9°C20.7°C | 20.7°C | 102 | 11.5 | 12.613 h |
| November | 30.0°C21.1°C | 21.1°C | 142 | 15.0 | 13.113 h |
| December, selected | 29.7°C22.0°C | 22.0°C | 182 | 20.2 | 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
- Araçatuba in DecemberBrazil · 13 kmHigh 29.8°C · Low 22.2°C · 188 mm rain
- Lins in DecemberBrazil · 76 kmHigh 29.7°C · Low 21.8°C · 199 mm rain
- Votuporanga in DecemberBrazil · 104 kmHigh 28.9°C · Low 21.4°C · 227 mm rain
- Marília in DecemberBrazil · 111 kmHigh 28.1°C · Low 20.0°C · 183 mm rain
- Fernandópolis in DecemberBrazil · 112 kmHigh 28.9°C · Low 21.5°C · 223 mm rain
- São José do Rio Preto in DecemberBrazil · 112 kmHigh 29.0°C · Low 21.5°C · 234 mm rain
- Catanduva in DecemberBrazil · 143 kmHigh 29.0°C · Low 21.2°C · 225 mm rain
- Presidente Prudente in DecemberBrazil · 143 kmHigh 29.5°C · Low 21.4°C · 185 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 Birigui) is explained once on the Birigui year overview and on the Sources, method and limits page.