Climate averages 1991–2020
São João da Boa Vista weather
in October.
A hot, wet month: the warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in São João da Boa Vista: daytime highs average 28.1°C and nights cool to about 18.0°C. By daytime temperature it is the warmest month of the year.
Expect about 122 mm of rain on roughly 15 days, which makes October a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 35 min on an average October day.
The nearest other city in this atlas is Poços de Caldas (32 km away). In October its highs average 25.3°C, 2.8°C cooler than São João da Boa Vista, with 149 mm of rain.
Among the 448 cities listed in Brazil, São João da Boa Vista ranks joint 238th of 448 for the warmest October highs and joint 277th of 448 for the driest October (rainfall, lowest first). The mean October high of those 448 cities is 28.3°C; São João da Boa Vista is 0.1°C cooler than that mean.
From October to November, average highs fall by 0.9°C to 27.2°C, and monthly rainfall rises from 122 mm to 191 mm.
The annual picture
October 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 João da Boa Vista climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.6°C19.5°C | 19.5°C | 282 | 24.0 | 13.313 h |
| February | 27.8°C19.4°C | 19.4°C | 213 | 20.3 | 12.813 h |
| March | 27.2°C18.6°C | 18.6°C | 183 | 19.9 | 12.212 h |
| April | 26.3°C16.7°C | 16.7°C | 80 | 10.3 | 11.612 h |
| May | 23.9°C13.7°C | 13.7°C | 56 | 6.4 | 11.111 h |
| June | 23.5°C12.5°C | 12.5°C | 32 | 4.1 | 10.811 h |
| July | 23.8°C12.2°C | 12.2°C | 27 | 3.3 | 10.911 h |
| August | 25.8°C13.5°C | 13.5°C | 26 | 3.7 | 11.411 h |
| September | 27.7°C16.2°C | 16.2°C | 77 | 8.7 | 12.012 h |
| October, selected | 28.1°C18.0°C | 18.0°C | 122 | 14.5 | 12.613 h |
| November | 27.2°C18.4°C | 18.4°C | 191 | 19.4 | 13.113 h |
| December | 27.5°C19.2°C | 19.2°C | 245 | 23.4 | 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
October in nearby cities
- Poços de Caldas in OctoberBrazil · 32 kmHigh 25.3°C · Low 16.0°C · 149 mm rain
- Mogi Guaçu in OctoberBrazil · 47 kmHigh 28.6°C · Low 18.1°C · 119 mm rain
- Itapira in OctoberBrazil · 52 kmHigh 28.4°C · Low 18.2°C · 123 mm rain
- Mogi Mirim in OctoberBrazil · 54 kmHigh 28.6°C · Low 17.9°C · 130 mm rain
- Pirassununga in OctoberBrazil · 65 kmHigh 29.0°C · Low 18.3°C · 116 mm rain
- Leme in OctoberBrazil · 66 kmHigh 28.8°C · Low 18.0°C · 129 mm rain
- Araras in OctoberBrazil · 74 kmHigh 28.4°C · Low 17.9°C · 129 mm rain
- Cosmópolis in OctoberBrazil · 86 kmHigh 28.6°C · Low 18.0°C · 123 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 João da Boa Vista) is explained once on the São João da Boa Vista year overview and on the Sources, method and limits page.