Climate averages 1991–2020
Barretos weather
in January.
A hot, very wet month: the 7th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Barretos: daytime highs average 29.0°C and nights cool to about 21.5°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 259 mm of rain on roughly 23 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 13 min on an average January day.
The nearest other city in this atlas is Bebedouro (45 km away). In January its highs average 28.8°C, about as warm as Barretos, with 259 mm of rain.
Among the 448 cities listed in Brazil, Barretos ranks joint 170th of 448 for the warmest January highs and joint 335th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Barretos is 0.5°C warmer than that mean.
From January to February, average highs rise by 0.2°C to 29.2°C, and monthly rainfall falls from 259 mm to 190 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
Barretos climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 29.0°C21.5°C | 21.5°C | 259 | 23.1 | 13.213 h |
| February | 29.2°C21.4°C | 21.4°C | 190 | 19.4 | 12.813 h |
| March | 28.8°C21.0°C | 21.0°C | 171 | 19.2 | 12.212 h |
| April | 28.4°C19.5°C | 19.5°C | 63 | 8.6 | 11.612 h |
| May | 26.4°C16.7°C | 16.7°C | 35 | 5.0 | 11.211 h |
| June | 26.1°C15.6°C | 15.6°C | 21 | 2.5 | 10.911 h |
| July | 26.7°C15.5°C | 15.5°C | 13 | 1.8 | 11.011 h |
| August | 29.1°C17.1°C | 17.1°C | 15 | 2.2 | 11.411 h |
| September | 31.0°C19.5°C | 19.5°C | 55 | 6.2 | 12.012 h |
| October | 31.1°C20.9°C | 20.9°C | 105 | 12.5 | 12.613 h |
| November | 29.6°C20.9°C | 20.9°C | 160 | 17.7 | 13.113 h |
| December | 29.1°C21.4°C | 21.4°C | 226 | 22.7 | 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
January in nearby cities
- Bebedouro in JanuaryBrazil · 45 kmHigh 28.8°C · Low 21.1°C · 259 mm rain
- Catanduva in JanuaryBrazil · 77 kmHigh 28.9°C · Low 21.4°C · 267 mm rain
- Jaboticabal in JanuaryBrazil · 82 kmHigh 28.4°C · Low 20.7°C · 270 mm rain
- Sertãozinho in JanuaryBrazil · 88 kmHigh 28.9°C · Low 21.0°C · 238 mm rain
- São José do Rio Preto in JanuaryBrazil · 89 kmHigh 28.9°C · Low 21.7°C · 271 mm rain
- Ribeirão Preto in JanuaryBrazil · 105 kmHigh 28.9°C · Low 20.9°C · 254 mm rain
- Uberaba in JanuaryBrazil · 112 kmHigh 27.9°C · Low 20.4°C · 299 mm rain
- Matão in JanuaryBrazil · 118 kmHigh 28.5°C · Low 20.9°C · 287 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 Barretos) is explained once on the Barretos year overview and on the Sources, method and limits page.