Climate Insights for Ilhabela

The climate in Ilhabela is cold. The average annual temperature is -6°C and approximately 178mm of precipitation falls per year. April is the wettest month, receiving around 33mm of rainfall. Ilhabela 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: April, March, May. The coldest months are January, February, December, when temperatures can drop to -10°C. Snowfall occurs from January to December, with around 178cm accumulating over the season.

Ilhabela has relatively stable temperatures year-round, staying within a 8°C range. April is the warmest month, though highs remain moderate at -2°C with a mean of -3°C. The coldest month is January, when overnight lows fall to -10°C and the daily average is -10°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.

Ilhabela is a quite dry location, receiving approximately 178mm of precipitation annually, which averages out to around 15mm per month. The wettest month is February, averaging 33mm of rainfall. March and April also tend to see above-average precipitation. The driest month is January, with just 3mm. That's 30mm less than February, 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. Snowfall is a regular feature from January to December, with around 178cm accumulating over the season. February typically sees the most snow at around 33cm.

Ilhabela is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 6km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 6km/h in winter, 3km/h in spring, 4km/h in summer, 7km/h in autumn.

It is currently winter in Ilhabela, which began on June 21, 2026. Ilhabela 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 April at around -2°C, while the coldest stretch bottoms out in January near -10°C. Spring is next, beginning on September 23, 2026 (16 days from now).

The table below shows monthly climate averages for Ilhabela 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.