Climate averages 1991–2020
Rio Claro 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 Rio Claro: daytime highs average 28.4°C and nights cool to about 17.5°C. By daytime temperature it is the warmest month of the year.
Expect about 128 mm of rain on roughly 14 days, which makes October a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 36 min on an average October day.
The nearest other city in this atlas is Araras (19 km away). In October its highs average 28.4°C, about as warm as Rio Claro, with 129 mm of rain.
Among the 448 cities listed in Brazil, Rio Claro ranks joint 210th of 448 for the warmest October highs and joint 310th of 448 for the driest October (rainfall, lowest first). The mean October high of those 448 cities is 28.3°C; Rio Claro is 0.1°C warmer than that mean.
From October to November, average highs fall by 0.8°C to 27.6°C, and monthly rainfall rises from 128 mm to 184 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
Rio Claro climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.0°C19.9°C | 19.9°C | 290 | 23.2 | 13.313 h |
| February | 28.3°C19.9°C | 19.9°C | 214 | 19.5 | 12.913 h |
| March | 27.5°C19.1°C | 19.1°C | 173 | 18.4 | 12.212 h |
| April | 26.6°C17.2°C | 17.2°C | 68 | 8.3 | 11.612 h |
| May | 24.2°C14.2°C | 14.2°C | 57 | 6.4 | 11.111 h |
| June | 23.7°C12.9°C | 12.9°C | 39 | 4.4 | 10.811 h |
| July | 24.1°C12.3°C | 12.3°C | 35 | 3.9 | 10.911 h |
| August | 26.1°C13.3°C | 13.3°C | 32 | 4.2 | 11.311 h |
| September | 27.9°C15.7°C | 15.7°C | 72 | 7.9 | 11.912 h |
| October, selected | 28.4°C17.5°C | 17.5°C | 128 | 13.9 | 12.613 h |
| November | 27.6°C18.1°C | 18.1°C | 184 | 16.5 | 13.213 h |
| December | 28.0°C19.4°C | 19.4°C | 229 | 21.3 | 13.513 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
- Araras in OctoberBrazil · 19 kmHigh 28.4°C · Low 17.9°C · 129 mm rain
- Limeira in OctoberBrazil · 24 kmHigh 28.7°C · Low 17.9°C · 128 mm rain
- Leme in OctoberBrazil · 31 kmHigh 28.8°C · Low 18.0°C · 129 mm rain
- Piracicaba in OctoberBrazil · 36 kmHigh 28.9°C · Low 18.0°C · 104 mm rain
- Santa Bárbara d'Oeste in OctoberBrazil · 41 kmHigh 28.5°C · Low 17.9°C · 114 mm rain
- Americana in OctoberBrazil · 43 kmHigh 28.6°C · Low 17.9°C · 123 mm rain
- Cosmópolis in OctoberBrazil · 46 kmHigh 28.6°C · Low 18.0°C · 123 mm rain
- Pirassununga in OctoberBrazil · 48 kmHigh 29.0°C · Low 18.3°C · 116 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 Rio Claro) is explained once on the Rio Claro year overview and on the Sources, method and limits page.
Limeira lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.