Bonito weather in August
August in Bonito: hot, a little rain, with clean air — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#3 of 12 months in Bonito · #532 of 1413 destinations to visit in August · comfort 83/100 (tier A)
- Days
- 29°C
- Nights
- 17°C
- Wet days
- 6
- Sun
- 9.3 h
- Humidity
- 59%
- Daylight
- 11 h
Traveller notes on Bonito in August
Other months in Bonito
Bonito forum threads describe December through February as peak rainy season here, with waterfalls running at their fullest but river water sometimes losing some of the crystal clarity Bonito is famous for at other times of year. Counterintuitively, posters noted January/February also bring the strongest sun angle, which actually benefits underwater visibility for floating and diving in the region's spring-fed rivers despite the higher rain chance. This window is also Brazil's peak domestic summer travel season, so bigger crowds at the main river and cave attractions were a consistent theme alongside the weather discussion.
Forum posters describe June-July as dry season and Brazilian winter here, but genuinely mild rather than cold - daytime temperatures commonly around 26C and rarely dropping below 18C even at the coolest. Posters name this dry stretch (April-September) as the best window for the region's famous river activities: water clarity is at its best (described as crystalline) and wildlife concentrates visibly along the riverbanks, making boat trips for animal spotting particularly rewarding. July does bring more visitors thanks to Brazil's mid-year school holidays, but posters consistently describe it as busier rather than genuinely crowded, with a pleasant rather than overwhelming atmosphere even during this bump in tourism.
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Bonito climate normals — August
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Bonito in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsFestival de Cinema de Bonito, Festival de Inverno(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Bonito's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherBonito's weather peaks June–August, best around July.
August includes Festival de Cinema de Bonito.
Best weatherFair weatherToughest weather
What's on in Bonito in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Every attraction sold by voucher
1 Jan – 31 DecBook earlyNothing here is bought at the gate. Each river, cave and waterfall is sold through an accredited agency as a dated voucher with a guide and a daily visitor cap, so a two-day trip has to be booked before you arrive. Source ↗
- Festival
Festival de Cinema de Bonito
24 Jul – 1 AugFilm festivalCrowdedA week of open-air and small-hall screenings in a town of twenty thousand, mostly Brazilian features and shorts. It lands in the middle of the July school break, so rooms are already tight. Source ↗
- Festival
Festival de Inverno
26–30 AugMusic festivalCrowdedBook earlyFive days of free stages and sertanejo headliners that fill every pousada in town and most of the ones on the road out. Book the attractions themselves before the accommodation, not after. Source ↗
Where is Bonito?
Bonito in August — FAQ
- Is August a good time to visit Bonito?
- August in Bonito: hot, a little rain, with clean air — an excellent time to visit. It ranks #3 of 12 months for Bonito on SeasonMap's comfort score (83/100).
- What is the weather like in Bonito in August?
- In August, Bonito averages a daily high of 28.7°C and a low of 16.9°C, with about 78 mm of rain over roughly 5.9 rainy days.
- What is the air quality in Bonito in August?
- Bonito has a mean US Air Quality Index of about 43 in August.