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Búzios Weather in September
Búzios in September averages 25°C (77°F) during the day and 20°C (68°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Búzios in September
Typically, you can expect about 12 days of rain this month, with 62 mm (2.4 in) on average. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Búzios in September
Búzios in September is worth a visit. The temperature is excellent, with 25°C (77°F) during the day and 20°C (68°F) at night. This kind of day-to-night contrast is typical for this time of year. Nights remain mild at 20°C (68°F), making evenings a pleasant time to be outdoors.Our weather planner can help you find worldwide destinations with pleasant weather during this period. February, April, May, June, July, August, September and October typically offer the best weather for Búzios.
Búzios Temperature in September
Min Temperature
20°C (68°F)
Max Temperature
25°C (77°F)
Chance of Rain
41%
Precipitation
62 mm (2.4 in)
Rainy days
12 days
Humidity
81% *
* Data from: Cabo Frio, Brazil (19 KM, 12 Miles).
Búzios Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Búzios - and find the best time to visit.
Daily Historical Temperatures
43-year average (1976-2026)
Based on our historical records, temperatures in Búzios typically stay consistent throughout September, with daily highs averaging around 25°C (77°F). Nights are pleasant, with lows around 18°C (64°F).
Average temperatures in September
Historical weather records for Búzios in September
Browse day-by-day weather records for Búzios spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Búzios historical weather extremes in September
Based on 21 years of weather observations (2005-2026), these are the most extreme conditions recorded in Búzios.
- On September 4, 2008, temperatures climbed to 36°C (97°F), marking the warmest September day on record.
- The coldest September day was on September 27, 2005, with a maximum of 14°C (57°F).
- The lowest overnight temperature recorded in September was 4°C (39°F) (September 6, 2006).
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 Búzios in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days.
What To Do in Búzios in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Camping8/10 -
Outdoor sports10/10
Búzios 3-Day Forecast
More climate data for Búzios
See the full Búzios 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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