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Ubatuba Weather in September
Ubatuba in September averages 23°C (73°F) during the day and 18°C (64°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Ubatuba in September
Typically around 11 days of rainfall are expected, averaging 156 mm (6.1 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Ubatuba in September
If you're visiting Ubatuba in September, expect highs of 23°C (73°F) and overnight lows around 18°C (64°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 18°C (64°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Ubatuba in September
This month is characterized by fewer sunny days, with about 80 hours of sunshine. It's great for those who appreciate cooler, less sunny days.If your ideal day consists of dry skies and pleasant temperatures, June and August typically offer the best circumstances for Ubatuba.
Ubatuba Temperature in September
Min Temperature
18°C (64°F)
Max Temperature
23°C (73°F)
Chance of Rain
38%
Precipitation
156 mm (6.1 in)
Rainy days
11 days
Sunshine
80 hours
Percentage Sunshine
Ubatuba Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ubatuba - and find the best time to visit.
Daily Historical Temperatures
41-year average (1977-2025)
Based on our historical records, temperatures in Ubatuba typically stay consistent throughout September, with daily highs averaging around 23°C (73°F). Nights are pleasant, with lows typically ranging from 15°C (59°F) to 18°C (64°F).
Average temperatures in September
Historical weather records for Ubatuba in September
Browse day-by-day weather records for Ubatuba spanning 50 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ubatuba historical weather extremes in September
According to our 20 years of weather records for Ubatuba, the following extremes were recorded between 2006 and 2026.
- The warmest day in September was on September 24, 2023, with a maximum of 37°C (99°F).
- The lowest daytime temperature in September was 17°C (63°F), recorded on September 5, 2006.
- Nighttime temperatures dropped to 6°C (43°F) on September 1, 2022, marking the coldest September night on record.
- The heaviest September precipitation occurred on September 22, 2020, when 82 mm (3.2 in) of precipitation fell.
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
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Ubatuba 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. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Sunglasses aren't essential this month, though you might want them for the occasional bright moment.
What To Do in Ubatuba in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Camping6/10
Ubatuba 3-Day Forecast
More climate data for Ubatuba
See the full Ubatuba climate overview or explore weather in Brazil.
Popular in September
Where to go in September - average daytime high across popular destinations.
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