Trancoso weather in September

September in Trancoso: hot, a little rain, with clean air — one of the best months to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Trancoso🇧🇷 Brazil · Northeast Brazil · Beach92
  1. 88Jan
  2. 90Feb
  3. 89Mar
  4. 85Apr
  5. 88May
  6. 89Jun
  7. 89Jul
  8. 90Aug
  9. 92Sep
  10. 89Oct
  11. 80Nov
  12. 83Dec

#1 of 12 months in Trancoso · #160 of 1413 destinations to visit in September · comfort 92/100 (tier S)

Days
27°C
Nights
21°C
Wet days
12
Sun
10.1 h
Humidity
78%
Daylight
12 h
Trancoso, Brazil
Photo: David Rado · Pexels

Traveller notes on Trancoso in September

Other months in Trancoso

Trancoso's forum is candid that August is genuinely low season here - one poster went as far as calling the town 'dead' with no beach scene to speak of, and this stretch of the Bahia coast sees more rain than the sunnier months. That said, others pushed back that beach weather is still fine on a good day, just with real odds of a rainy one mixed in and days running mild rather than hot - closer to the high 70s F than tropical peak heat. Posters who prioritized guaranteed sun over Trancoso's quieter charm pointed further north to Ceará instead, where August rain is much less of a factor.
BahiaCoastRegular · August · 1 month ago · Read more on Tripadvisor ↗
Forum posters name the November-through-March stretch as Trancoso's best weather window, with February specifically called out as one of the strongest picks within it - genuinely better rainfall odds than Rio or southern Brazil at the same time of year, even if not entirely rain-free. Posters do flag a real crowd tradeoff around the turn of the year: the Christmas-New Year's-Carnival stretch brings an energetic but genuinely crowded atmosphere, so travelers wanting a quieter beach visit within the same good-weather window might lean toward February over the holiday peak itself.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Trancoso's card on the map.

Trancoso climate normals — September

Daytime high27°C / 80°F🥵 hot
Nighttime low21°C / 69°F
Feels like (high)29°C / 84°F
Sea temperature26°C / 79°F😎 warm sea
Rainfall48 mm / 1.9 in🌦 some rain
Rainy days12 days
Humidity78%💦 very humid
Dew point20°C / 67°F
Sunshine10.1 h/day
Daylight12 h
Wind16 km/h / 10 mph
Air quality (US AQI)29🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Trancoso in September

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.

Busyschool holidays in 2 of the markets that fill it, one of its best months for weather(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Trancoso'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).

Fair weatherTrancoso's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

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What's on in Trancoso in September

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Nature

    Humpback whales off the coast

    1 Jul – 15 Nov · usuallyWhale season

    Humpbacks breed on the Abrolhos bank south of here through the southern winter and pass close enough to be seen from the clifftop church on a calm morning. Boats go from Caravelas and Porto Seguro.

What's on around the world in September →

Where is Trancoso?

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Trancoso in September — FAQ

Is September a good time to visit Trancoso?
September in Trancoso: hot, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Trancoso on SeasonMap's comfort score (92/100).
What is the weather like in Trancoso in September?
In September, Trancoso averages a daily high of 26.7°C and a low of 20.5°C, with about 47.5 mm of rain over roughly 12.4 rainy days.
What is the air quality in Trancoso in September?
Trancoso has a mean US Air Quality Index of about 29 in September.