Climate averages 1991–2020
São Caetano do Sul weather
in March.
A warm, wet month: the 4th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a warm month in São Caetano do Sul: daytime highs average 25.6°C and nights cool to about 18.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 154 mm of rain on roughly 20 days, which makes March a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 14 min on an average March day.
The nearest other city in this atlas is Santo André (5 km away). In March its highs average 25.3°C, about as warm as São Caetano do Sul, with 270 mm of rain.
Among the 448 cities listed in Brazil, São Caetano do Sul ranks joint 406th of 448 for the warmest March highs and joint 228th of 448 for the driest March (rainfall, lowest first). The mean March high of those 448 cities is 27.9°C; São Caetano do Sul is 2.4°C cooler than that mean.
From March to April, average highs fall by 1.2°C to 24.4°C, and monthly rainfall falls from 154 mm to 64 mm.
The annual picture
March 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
São Caetano do Sul climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.3°C19.2°C | 19.2°C | 232 | 23.8 | 13.413 h |
| February | 26.6°C19.3°C | 19.3°C | 180 | 20.4 | 12.913 h |
| March, selected | 25.6°C18.5°C | 18.5°C | 154 | 20.2 | 12.212 h |
| April | 24.4°C16.9°C | 16.9°C | 64 | 10.6 | 11.612 h |
| May | 21.9°C14.2°C | 14.2°C | 64 | 7.7 | 11.011 h |
| June | 21.5°C12.9°C | 12.9°C | 47 | 5.5 | 10.711 h |
| July | 21.4°C12.2°C | 12.2°C | 54 | 5.7 | 10.811 h |
| August | 22.6°C12.8°C | 12.8°C | 40 | 5.2 | 11.311 h |
| September | 23.7°C14.4°C | 14.4°C | 90 | 9.7 | 11.912 h |
| October | 24.6°C16.0°C | 16.0°C | 116 | 14.6 | 12.613 h |
| November | 24.4°C16.7°C | 16.7°C | 152 | 16.8 | 13.213 h |
| December | 25.8°C18.3°C | 18.3°C | 181 | 20.9 | 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
March in nearby cities
- Santo André in MarchBrazil · 5 kmHigh 25.3°C · Low 18.6°C · 270 mm rain
- São Bernardo do Campo in MarchBrazil · 8 kmHigh 25.2°C · Low 18.4°C · 270 mm rain
- São Paulo in MarchBrazil · 12 kmHigh 25.7°C · Low 18.4°C · 139 mm rain
- Ribeirão Pires in MarchBrazil · 17 kmHigh 25.5°C · Low 18.9°C · 270 mm rain
- Guarulhos in MarchBrazil · 18 kmHigh 25.7°C · Low 18.3°C · 154 mm rain
- Ferraz de Vasconcelos in MarchBrazil · 21 kmHigh 25.8°C · Low 18.5°C · 171 mm rain
- Taboão da Serra in MarchBrazil · 25 kmHigh 25.4°C · Low 18.1°C · 219 mm rain
- Itaquaquecetuba in MarchBrazil · 26 kmHigh 25.8°C · Low 18.4°C · 171 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 São Caetano do Sul) is explained once on the São Caetano do Sul year overview and on the Sources, method and limits page.
Guarulhos lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.