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Ilhéus Weather by Month
Average temperatures, rainfall and humidity for Ilhéus, Brazil, month by month, built from OpenWeather's historical records. Use it to see what a typical Ilhéus month looks like before you travel — then check the live Ilhéus forecast for the days ahead.
Warmest month
February
30°C average high
Coolest month
August
20°C average low
Wettest month
May
93 mm of rain
Driest month
September
47 mm of rain
Average temperature and rainfall in Ilhéus 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 | 24°C | 20°C / 32°C | 60 mm | 82% | 10 km/h |
| February | 30°C | 24°C | 20°C / 35°C | 51 mm | 81% | 10 km/h |
| March | 30°C | 24°C | 20°C / 33°C | 59 mm | 82% | 10 km/h |
| April | 29°C | 23°C | 19°C / 33°C | 80 mm | 84% | 10 km/h |
| May | 28°C | 22°C | 16°C / 31°C | 93 mm | 85% | 11 km/h |
| June | 27°C | 21°C | 15°C / 30°C | 75 mm | 86% | 11 km/h |
| July | 26°C | 20°C | 14°C / 30°C | 71 mm | 85% | 11 km/h |
| August | 26°C | 20°C | 15°C / 29°C | 63 mm | 84% | 11 km/h |
| September | 27°C | 21°C | 15°C / 30°C | 47 mm | 83% | 11 km/h |
| October | 28°C | 22°C | 18°C / 31°C | 60 mm | 83% | 11 km/h |
| November | 28°C | 23°C | 18°C / 31°C | 87 mm | 85% | 11 km/h |
| December | 29°C | 23°C | 20°C / 33°C | 79 mm | 83% | 10 km/h |
Best time to visit Ilhéus
The most comfortable time to visit Ilhéus is generally July to September, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around May, totalling about 824 mm a year.
Travellers who prefer heat should aim for February, when highs average 30°C. May is the month to avoid if rain would spoil your plans — it averages 93 mm, roughly 2× the rainfall of September.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Ilhéus forecast for what is happening now.