Climate averages 1991–2020
Passos weather
in September.
A hot, moderately wet month: the 2nd warmest and the 6th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Passos: daytime highs average 28.2°C and nights cool to about 16.2°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 58 mm of rain on roughly 7 days, which makes September a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 58 min on an average September day.
The nearest other city in this atlas is São Sebastião do Paraíso (45 km away). In September its highs average 27.2°C, 1.0°C cooler than Passos, with 76 mm of rain.
Among the 448 cities listed in Brazil, Passos ranks joint 171st of 448 for the warmest September highs and joint 196th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Passos is 0.7°C warmer than that mean.
From September to October, average highs rise by 0.4°C to 28.6°C, and monthly rainfall rises from 58 mm to 94 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
Passos climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.7°C19.8°C | 19.8°C | 243 | 22.2 | 13.213 h |
| February | 28.0°C19.7°C | 19.7°C | 166 | 18.3 | 12.813 h |
| March | 27.3°C19.2°C | 19.2°C | 146 | 18.2 | 12.212 h |
| April | 26.4°C17.6°C | 17.6°C | 54 | 9.1 | 11.612 h |
| May | 24.4°C14.6°C | 14.6°C | 35 | 4.8 | 11.111 h |
| June | 23.8°C12.9°C | 12.9°C | 15 | 2.5 | 10.911 h |
| July | 24.2°C12.4°C | 12.4°C | 10 | 1.8 | 11.011 h |
| August | 26.3°C13.5°C | 13.5°C | 13 | 2.5 | 11.411 h |
| September, selected | 28.2°C16.2°C | 16.2°C | 58 | 7.0 | 12.012 h |
| October | 28.6°C18.3°C | 18.3°C | 94 | 13.5 | 12.613 h |
| November | 27.4°C18.9°C | 18.9°C | 168 | 19.0 | 13.113 h |
| December | 27.5°C19.6°C | 19.6°C | 236 | 23.6 | 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
September in nearby cities
- São Sebastião do Paraíso in SeptemberBrazil · 45 kmHigh 27.2°C · Low 16.5°C · 76 mm rain
- Franca in SeptemberBrazil · 85 kmHigh 27.8°C · Low 16.4°C · 64 mm rain
- Alfenas in SeptemberBrazil · 105 kmHigh 26.1°C · Low 15.5°C · 64 mm rain
- Poços de Caldas in SeptemberBrazil · 119 kmHigh 24.9°C · Low 14.4°C · 92 mm rain
- Araxá in SeptemberBrazil · 130 kmHigh 27.3°C · Low 16.4°C · 46 mm rain
- Ribeirão Preto in SeptemberBrazil · 135 kmHigh 30.4°C · Low 18.6°C · 67 mm rain
- São João da Boa Vista in SeptemberBrazil · 140 kmHigh 27.7°C · Low 16.2°C · 77 mm rain
- Sertãozinho in SeptemberBrazil · 151 kmHigh 30.6°C · Low 18.8°C · 63 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 Passos) is explained once on the Passos year overview and on the Sources, method and limits page.