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Jundiaí Weather by Month
Average temperatures, rainfall and humidity for Jundiaí, Brazil, month by month, built from OpenWeather’s historical records. Use it to see what a typical Jundiaí month looks like before you travel — then check the live Jundiaí forecast for the days ahead.
Warmest month
December
29°C average high
Coolest month
July
13°C average low
Wettest month
March
99 mm of rain
Driest month
August
22 mm of rain
Average temperature and rainfall in Jundiaí 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 | 15°C / 35°C | 81 mm | 77% | 11 km/h |
| February | 29°C | 20°C | 13°C / 36°C | 64 mm | 77% | 11 km/h |
| March | 28°C | 19°C | 15°C / 37°C | 99 mm | 78% | 11 km/h |
| April | 27°C | 18°C | 6°C / 33°C | 35 mm | 75% | 11 km/h |
| May | 24°C | 15°C | 5°C / 32°C | 29 mm | 74% | 11 km/h |
| June | 24°C | 14°C | 4°C / 29°C | 28 mm | 72% | 10 km/h |
| July | 23°C | 13°C | 1°C / 30°C | 24 mm | 66% | 11 km/h |
| August | 25°C | 15°C | 3°C / 34°C | 22 mm | 63% | 12 km/h |
| September | 28°C | 17°C | 7°C / 37°C | 30 mm | 63% | 13 km/h |
| October | 27°C | 18°C | 9°C / 38°C | 66 mm | 71% | 13 km/h |
| November | 27°C | 18°C | 10°C / 37°C | 53 mm | 72% | 13 km/h |
| December | 29°C | 19°C | 13°C / 35°C | 67 mm | 73% | 12 km/h |
Best time to visit Jundiaí
The most comfortable time to visit Jundiaí 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 March, totalling about 600 mm a year.
Travellers who prefer heat should aim for December, when highs average 29°C. March is the month to avoid if rain would spoil your plans — it averages 99 mm, roughly 4× the rainfall of the driest month (August).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Jundiaí forecast for what is happening now.