Climate averages 1991–2020
Botucatu weather
in September.
A warm, moderately wet month: the 7th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Botucatu: daytime highs average 25.7°C and nights cool to about 14.3°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 86 mm of rain on roughly 9 days, which makes September a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average September day.
The nearest other city in this atlas is Avaré (55 km away). In September its highs average 25.7°C, about as warm as Botucatu, with 74 mm of rain.
Among the 448 cities listed in Brazil, Botucatu ranks joint 310th of 448 for the warmest September highs and joint 312th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Botucatu is 1.8°C cooler than that mean.
From September to October, average highs rise by 0.8°C to 26.5°C, and monthly rainfall rises from 86 mm to 142 mm.
The annual picture
September 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
Botucatu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.6°C18.8°C | 18.8°C | 315 | 24.0 | 13.413 h |
| February | 26.7°C18.8°C | 18.8°C | 233 | 20.9 | 12.913 h |
| March | 26.0°C18.0°C | 18.0°C | 173 | 19.1 | 12.212 h |
| April | 25.0°C16.1°C | 16.1°C | 73 | 9.2 | 11.612 h |
| May | 22.3°C13.3°C | 13.3°C | 67 | 7.3 | 11.011 h |
| June | 21.6°C12.0°C | 12.0°C | 52 | 5.3 | 10.811 h |
| July | 21.8°C11.3°C | 11.3°C | 46 | 4.6 | 10.911 h |
| August | 23.9°C12.2°C | 12.2°C | 43 | 4.6 | 11.311 h |
| September, selected | 25.7°C14.3°C | 14.3°C | 86 | 9.0 | 11.912 h |
| October | 26.5°C16.0°C | 16.0°C | 142 | 13.5 | 12.613 h |
| November | 26.1°C16.7°C | 16.7°C | 178 | 16.7 | 13.213 h |
| December | 26.7°C18.1°C | 18.1°C | 235 | 21.3 | 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
September in nearby cities
- Avaré in SeptemberBrazil · 55 kmHigh 25.7°C · Low 14.9°C · 74 mm rain
- Jaú in SeptemberBrazil · 67 kmHigh 28.8°C · Low 17.1°C · 64 mm rain
- Tatuí in SeptemberBrazil · 80 kmHigh 25.7°C · Low 14.6°C · 82 mm rain
- Piracicaba in SeptemberBrazil · 84 kmHigh 28.4°C · Low 16.3°C · 61 mm rain
- Itapetininga in SeptemberBrazil · 88 kmHigh 24.7°C · Low 14.5°C · 90 mm rain
- Bauru in SeptemberBrazil · 90 kmHigh 28.8°C · Low 17.1°C · 64 mm rain
- Rio Claro in SeptemberBrazil · 105 kmHigh 27.9°C · Low 15.7°C · 72 mm rain
- Santa Bárbara d'Oeste in SeptemberBrazil · 107 kmHigh 27.9°C · Low 16.3°C · 70 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 Botucatu) is explained once on the Botucatu year overview and on the Sources, method and limits page.