Climate averages 1991–2020
Barueri weather
in September.
A warm, moderately wet month: the 8th 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 Barueri: daytime highs average 24.8°C and nights cool to about 14.7°C. By daytime temperature it is the 8th 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 56 min on an average September day.
The nearest other city in this atlas is Santana de Parnaíba (9 km away). In September its highs average 25.0°C, about as warm as Barueri, with 86 mm of rain.
Among the 448 cities listed in Brazil, Barueri ranks joint 342nd 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; Barueri is 2.8°C cooler than that mean.
From September to October, average highs rise by 0.8°C to 25.6°C, and monthly rainfall rises from 86 mm to 114 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
Barueri climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.7°C19.2°C | 19.2°C | 230 | 22.7 | 13.413 h |
| February | 27.0°C19.3°C | 19.3°C | 168 | 19.4 | 12.913 h |
| March | 26.1°C18.5°C | 18.5°C | 136 | 18.5 | 12.212 h |
| April | 24.9°C16.9°C | 16.9°C | 63 | 9.0 | 11.612 h |
| May | 22.3°C14.2°C | 14.2°C | 60 | 7.0 | 11.011 h |
| June | 21.7°C13.0°C | 13.0°C | 48 | 5.1 | 10.711 h |
| July | 21.8°C12.3°C | 12.3°C | 48 | 5.1 | 10.811 h |
| August | 23.4°C13.0°C | 13.0°C | 38 | 4.8 | 11.311 h |
| September, selected | 24.8°C14.7°C | 14.7°C | 86 | 9.2 | 11.912 h |
| October | 25.6°C16.2°C | 16.2°C | 114 | 13.5 | 12.613 h |
| November | 25.3°C16.8°C | 16.8°C | 150 | 16.1 | 13.213 h |
| December | 26.4°C18.3°C | 18.3°C | 181 | 20.5 | 13.614 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
- Santana de Parnaíba in SeptemberBrazil · 9 kmHigh 25.0°C · Low 14.8°C · 86 mm rain
- Osasco in SeptemberBrazil · 9 kmHigh 24.5°C · Low 14.4°C · 84 mm rain
- Taboão da Serra in SeptemberBrazil · 15 kmHigh 23.7°C · Low 14.1°C · 108 mm rain
- Embu das Artes in SeptemberBrazil · 16 kmHigh 24.0°C · Low 14.4°C · 108 mm rain
- Caieiras in SeptemberBrazil · 21 kmHigh 24.4°C · Low 14.4°C · 91 mm rain
- Itapecerica da Serra in SeptemberBrazil · 23 kmHigh 22.5°C · Low 13.3°C · 108 mm rain
- São Paulo in SeptemberBrazil · 25 kmHigh 24.2°C · Low 14.5°C · 84 mm rain
- São Roque in SeptemberBrazil · 27 kmHigh 24.6°C · Low 14.6°C · 82 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 Barueri) is explained once on the Barueri year overview and on the Sources, method and limits page.
Santana de Parnaíba lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.