Ilhabela Weather in September
September in Ilhabela brings high temperatures, with highs of 23°C (73°F) and nights dropping to 19°C (66°F). Rainfall is on the higher side this month, averaging around 137 mm (5.4 in), so keep a rain jacket handy.
Rainfall in Ilhabela in September
Typically, you can expect about 12 days of rain this month, with 137 mm (5.4 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Ilhabela in September
In September, expect high temperatures in Ilhabela, with highs of 23°C (73°F) and lows of 19°C (66°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Ilhabela in September
The month has fewer sunny days, with around 80 hours of sunshine.For Ilhabela itself, June, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Brazil, check out our Ilhabela's climate page.
Ilhabela Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
23°C (73°F)
Chance of Rain
41%
Precipitation
137 mm (5.4 in)
Rainy days
12 days
Sunshine
80 hours *
Percentage Sunshine
*
Historical weather for Ilhabela in September
Browse day-by-day weather records for Ilhabela spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ilhabela historical weather extremes in September
The extremes listed below come from historical weather data collected in Ilhabela from 2006 through 2025.
- On September 2, 2020, temperatures climbed to 34°C (93°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 16°C (61°F), recorded on September 5, 2006.
- Ilhabela registered its coldest September night on September 21, 2016, with temperatures dropping to 7°C (45°F).
- The wettest September day on record brought 66 mm (2.6 in) of precipitation to Ilhabela (September 22, 2020).
Best Places in Brazil in September
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in September →
perfect weather
pleasant
tolerable
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What to Wear in Ilhabela in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Ilhabela in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Brazil, check out our Ilhabela's climate page.
See the full Ilhabela climate overview or explore weather in Brazil.
