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Rio Claro Weather by Month
Average temperatures, rainfall and humidity for Rio Claro, Brazil, month by month, built from OpenWeather’s historical records. Use it to see what a typical Rio Claro month looks like before you travel — then check the live Rio Claro forecast for the days ahead.
Warmest month
September
31°C average high
Coolest month
July
11°C average low
Wettest month
January
111 mm of rain
Driest month
August
15 mm of rain
Average temperature and rainfall in Rio Claro by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 29°C | 19°C | 14°C / 38°C | 111 mm | 78% | 8 km/h |
| February | 29°C | 19°C | 14°C / 36°C | 91 mm | 79% | 8 km/h |
| March | 29°C | 18°C | 13°C / 35°C | 110 mm | 80% | 8 km/h |
| April | 28°C | 17°C | 9°C / 35°C | 52 mm | 75% | 8 km/h |
| May | 26°C | 14°C | 2°C / 34°C | 27 mm | 74% | 8 km/h |
| June | 25°C | 13°C | 0°C / 31°C | 23 mm | 73% | 8 km/h |
| July | 26°C | 11°C | 0°C / 32°C | 17 mm | 64% | 8 km/h |
| August | 28°C | 13°C | 3°C / 36°C | 15 mm | 60% | 10 km/h |
| September | 31°C | 16°C | 8°C / 40°C | 29 mm | 59% | 10 km/h |
| October | 30°C | 18°C | 9°C / 41°C | 58 mm | 68% | 11 km/h |
| November | 29°C | 18°C | 10°C / 40°C | 82 mm | 71% | 10 km/h |
| December | 29°C | 19°C | 12°C / 38°C | 107 mm | 75% | 9 km/h |
Best time to visit Rio Claro
The most comfortable time to visit Rio Claro is generally May to July, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around January, totalling about 723 mm a year.
Travellers who prefer heat should aim for September, when highs average 31°C. January is the month to avoid if rain would spoil your plans — it averages 111 mm, roughly 7× the rainfall of the driest month (August).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Rio Claro forecast for what is happening now.
Weather across Brazil right now
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