Climate averages 1991–2020
Ourinhos weather
in December.
A hot, wet month: the warmest and the joint 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Ourinhos: daytime highs average 28.8°C and nights cool to about 20.4°C. By daytime temperature it is the warmest month of the year.
Expect about 172 mm of rain on roughly 18 days, which makes December a wet month (the joint 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 31 min on an average December day.
The nearest other city in this atlas is Assis (66 km away). In December its highs average 28.4°C, about as warm as Ourinhos, with 189 mm of rain.
Among the 448 cities listed in Brazil, Ourinhos ranks joint 192nd of 448 for the warmest December highs and joint 181st of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Ourinhos is 0.3°C warmer than that mean.
From December to January, average highs fall by 0.3°C to 28.5°C, and monthly rainfall rises from 172 mm to 234 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
Ourinhos 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 | 234 | 21.1 | 13.413 h |
| February | 28.4°C20.8°C | 20.8°C | 172 | 18.3 | 12.913 h |
| March | 28.0°C20.1°C | 20.1°C | 118 | 15.6 | 12.212 h |
| April | 27.2°C18.4°C | 18.4°C | 62 | 7.3 | 11.612 h |
| May | 24.3°C15.3°C | 15.3°C | 68 | 6.8 | 11.011 h |
| June | 23.4°C13.9°C | 13.9°C | 55 | 5.6 | 10.711 h |
| July | 23.7°C13.4°C | 13.4°C | 43 | 4.4 | 10.911 h |
| August | 26.0°C14.5°C | 14.5°C | 42 | 4.4 | 11.311 h |
| September | 27.7°C16.6°C | 16.6°C | 84 | 8.3 | 11.912 h |
| October | 28.4°C18.3°C | 18.3°C | 114 | 11.8 | 12.613 h |
| November | 28.3°C19.0°C | 19.0°C | 138 | 13.5 | 13.213 h |
| December, selected | 28.8°C20.4°C | 20.4°C | 172 | 17.9 | 13.514 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
- Assis in DecemberBrazil · 66 kmHigh 28.4°C · Low 20.3°C · 189 mm rain
- Marília in DecemberBrazil · 85 kmHigh 28.1°C · Low 20.0°C · 183 mm rain
- Avaré in DecemberBrazil · 98 kmHigh 26.9°C · Low 18.8°C · 174 mm rain
- Bauru in DecemberBrazil · 111 kmHigh 28.9°C · Low 20.5°C · 191 mm rain
- Londrina in DecemberBrazil · 137 kmHigh 27.8°C · Low 19.4°C · 207 mm rain
- Lins in DecemberBrazil · 145 kmHigh 29.7°C · Low 21.8°C · 199 mm rain
- Botucatu in DecemberBrazil · 146 kmHigh 26.7°C · Low 18.1°C · 235 mm rain
- Cambé in DecemberBrazil · 148 kmHigh 27.6°C · Low 19.3°C · 207 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 Ourinhos) is explained once on the Ourinhos year overview and on the Sources, method and limits page.