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Itanhaém Weather by Month
Average temperatures, rainfall and humidity for Itanhaém, Brazil, month by month, built from OpenWeather’s historical records. Use it to see what a typical Itanhaém month looks like before you travel — then check the live Itanhaém forecast for the days ahead.
Warmest month
February
29°C average high
Coolest month
July
16°C average low
Wettest month
January
77 mm of rain
Driest month
April
33 mm of rain
Average temperature and rainfall in Itanhaém 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 | 22°C | 16°C / 38°C | 77 mm | 68% | 10 km/h |
| February | 29°C | 22°C | 16°C / 39°C | 76 mm | 67% | 10 km/h |
| March | 29°C | 22°C | 2°C / 38°C | 70 mm | 65% | 10 km/h |
| April | 27°C | 20°C | 11°C / 35°C | 33 mm | 65% | 9 km/h |
| May | 25°C | 18°C | 8°C / 36°C | 34 mm | 64% | 10 km/h |
| June | 25°C | 17°C | 9°C / 34°C | 46 mm | 67% | 9 km/h |
| July | 24°C | 16°C | 4°C / 34°C | 51 mm | 68% | 9 km/h |
| August | 25°C | 17°C | 8°C / 37°C | 51 mm | 65% | 10 km/h |
| September | 27°C | 18°C | 8°C / 41°C | 48 mm | 67% | 10 km/h |
| October | 26°C | 19°C | 12°C / 40°C | 57 mm | 65% | 11 km/h |
| November | 26°C | 19°C | 12°C / 39°C | 57 mm | 68% | 11 km/h |
| December | 28°C | 21°C | 12°C / 38°C | 66 mm | 66% | 10 km/h |
Best time to visit Itanhaém
The most comfortable time to visit Itanhaém 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 665 mm a year.
Travellers who prefer heat should aim for February, when highs average 29°C. January is the month to avoid if rain would spoil your plans — it averages 77 mm, roughly 2× the rainfall of the driest month (April).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Itanhaém forecast for what is happening now.