Climate averages 1991–2020
Piracicaba weather
in January.
A hot, very wet month: the 4th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Piracicaba: daytime highs average 28.6°C and nights cool to about 20.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 255 mm of rain on roughly 22 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 21 min on an average January day.
The nearest other city in this atlas is Santa Bárbara d'Oeste (24 km away). In January its highs average 28.4°C, about as warm as Piracicaba, with 266 mm of rain.
Among the 448 cities listed in Brazil, Piracicaba ranks joint 218th of 448 for the warmest January highs and joint 326th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Piracicaba is 0.2°C warmer than that mean.
From January to February, average highs rise by 0.2°C to 28.9°C, and monthly rainfall falls from 255 mm to 187 mm.
The annual picture
January 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
Piracicaba climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 28.6°C20.4°C | 20.4°C | 255 | 22.2 | 13.413 h |
| February | 28.9°C20.4°C | 20.4°C | 187 | 19.2 | 12.913 h |
| March | 28.1°C19.6°C | 19.6°C | 144 | 17.0 | 12.212 h |
| April | 27.2°C17.7°C | 17.7°C | 53 | 7.3 | 11.612 h |
| May | 24.6°C14.7°C | 14.7°C | 52 | 6.0 | 11.011 h |
| June | 24.1°C13.3°C | 13.3°C | 38 | 4.4 | 10.811 h |
| July | 24.4°C12.8°C | 12.8°C | 31 | 3.8 | 10.911 h |
| August | 26.5°C13.8°C | 13.8°C | 30 | 3.9 | 11.311 h |
| September | 28.4°C16.3°C | 16.3°C | 61 | 7.9 | 11.912 h |
| October | 28.9°C18.0°C | 18.0°C | 104 | 12.1 | 12.613 h |
| November | 28.3°C18.6°C | 18.6°C | 148 | 14.9 | 13.213 h |
| December | 28.8°C19.9°C | 19.9°C | 190 | 19.8 | 13.513 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
January in nearby cities
- Santa Bárbara d'Oeste in JanuaryBrazil · 24 kmHigh 28.4°C · Low 20.2°C · 266 mm rain
- Limeira in JanuaryBrazil · 31 kmHigh 28.4°C · Low 20.2°C · 290 mm rain
- Americana in JanuaryBrazil · 33 kmHigh 28.4°C · Low 20.2°C · 270 mm rain
- Rio Claro in JanuaryBrazil · 36 kmHigh 28.0°C · Low 19.9°C · 290 mm rain
- Sumaré in JanuaryBrazil · 41 kmHigh 28.3°C · Low 20.1°C · 270 mm rain
- Hortolândia in JanuaryBrazil · 46 kmHigh 28.1°C · Low 20.0°C · 270 mm rain
- Cosmópolis in JanuaryBrazil · 47 kmHigh 28.4°C · Low 20.2°C · 270 mm rain
- Araras in JanuaryBrazil · 49 kmHigh 28.1°C · Low 20.1°C · 285 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 Piracicaba) is explained once on the Piracicaba year overview and on the Sources, method and limits page.