Climate Insights for Ilhéus

The climate in Ilhéus is hot. The average annual temperature is 25°C and approximately 1260mm of precipitation falls per year. Ilhéus receives a notable amount of rainfall throughout the year, including during its driest month. Ilhéus is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: February, March, January. The coldest months are July, August, September, when temperatures can drop to 22°C.

Ilhéus has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is February, when average highs reach 29°C and the mean temperature sits around 27°C. July is the coolest month, with minimum temperatures around 22°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows.

Ilhéus is a fairly wet location, receiving approximately 1260mm of precipitation annually, which averages out to around 105mm per month. The wettest month is October, averaging 180mm of rainfall. January and June also tend to see above-average precipitation. The driest month is February, with just 35mm. That's 145mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Ilhéus is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently winter in Ilhéus, which began on June 21, 2026. Ilhéus is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in February at around 29°C, while the coldest stretch bottoms out in July near 22°C. Spring is next, beginning on September 23, 2026 — 61 days from now.

The best time to visit Ilhéus is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 78mm per month. By contrast, February can be uncomfortably hot with highs reaching 29°C, while July is the coldest period with lows dropping to 22°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Ilhéus based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.