Climate averages 1991–2020
Matão weather
in December.
A hot, very wet month: the 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 Matão: daytime highs average 28.6°C and nights cool to about 20.7°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 237 mm of rain on roughly 22 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 25 min on an average December day.
The nearest other city in this atlas is Araraquara (29 km away). In December its highs average 27.9°C, 0.7°C cooler than Matão, with 214 mm of rain.
Among the 448 cities listed in Brazil, Matão ranks joint 202nd of 448 for the warmest December highs and joint 357th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Matão is 0.1°C warmer than that mean.
From December to January, average highs fall by 0.1°C to 28.5°C, and monthly rainfall rises from 237 mm to 287 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
Matão climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.5°C20.9°C | 20.9°C | 287 | 23.2 | 13.313 h |
| February | 28.8°C20.9°C | 20.9°C | 201 | 19.7 | 12.813 h |
| March | 28.2°C20.3°C | 20.3°C | 179 | 19.1 | 12.212 h |
| April | 27.6°C18.7°C | 18.7°C | 71 | 8.8 | 11.612 h |
| May | 25.3°C15.8°C | 15.8°C | 52 | 5.7 | 11.111 h |
| June | 25.0°C14.9°C | 14.9°C | 31 | 3.0 | 10.811 h |
| July | 25.5°C14.7°C | 14.7°C | 23 | 2.8 | 10.911 h |
| August | 27.8°C16.0°C | 16.0°C | 24 | 3.2 | 11.411 h |
| September | 29.6°C18.2°C | 18.2°C | 71 | 7.6 | 12.012 h |
| October | 29.8°C19.7°C | 19.7°C | 126 | 13.1 | 12.613 h |
| November | 28.7°C19.8°C | 19.8°C | 184 | 17.2 | 13.113 h |
| December, selected | 28.6°C20.7°C | 20.7°C | 237 | 21.8 | 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
- Araraquara in DecemberBrazil · 29 kmHigh 27.9°C · Low 19.8°C · 214 mm rain
- Jaboticabal in DecemberBrazil · 39 kmHigh 28.4°C · Low 20.5°C · 228 mm rain
- Sertãozinho in DecemberBrazil · 65 kmHigh 29.0°C · Low 20.8°C · 195 mm rain
- São Carlos in DecemberBrazil · 67 kmHigh 26.9°C · Low 18.8°C · 213 mm rain
- Bebedouro in DecemberBrazil · 74 kmHigh 28.8°C · Low 21.0°C · 219 mm rain
- Ribeirão Preto in DecemberBrazil · 75 kmHigh 28.9°C · Low 20.8°C · 221 mm rain
- Jaú in DecemberBrazil · 80 kmHigh 29.0°C · Low 20.5°C · 191 mm rain
- Catanduva in DecemberBrazil · 81 kmHigh 29.0°C · Low 21.2°C · 225 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 Matão) is explained once on the Matão year overview and on the Sources, method and limits page.