SeasonScore
Rio de Janeiro, Brazil
Photo: Wolfhardt · CC BY-SA 3.0

Brazil

Rio de Janeiro in September

☀️ Dry season

Pleasant, a little humid and some showers.

🎒 Pack: sunglasses & hat

Best months: Jun (8.9), Jul (8.9), Aug (8.9)

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Why September scores 8.9What goes into the score

How it works
🌡️ 27° / 20°C🌧️ 54 mm💧 dew pt 18°🍃 PM2.5 17
  • Weather comfort9.3
    • ✓Comfortable temperatures (27°C highs / 20°C lows)
    • !Humid (dew point 18.1°C)
    • ✓Mostly dry (~54 mm rain)
  • Air quality8.1
    • ✓Moderate (PM2.5 ~17 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline6.5
    • ·Increased caution
Compare monthsPut September side by side with another month
SepJun
Score8.9 Excellent8.9 Excellent
Season☀️ Dry season☀️ Dry season
High / low27° / 20°27° / 19°
Rain54 mm43 mm
Humiditydew pt 18°dew pt 18°
PM2.517 µg/m³20 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Rio de Janeiro weather-station normals. Rainfall: Rio de Janeiro weather-station normals (national met service).

Holidays & crowdsSeptember 2027

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

Other public holidays: Independence Day (7 Sep)

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore Rio de JaneiroEvents, sights, food & souvenirs

Check event dates locally

Brazilian city set between mountains and the Atlantic, known for Christ the Redeemer, Sugarloaf Mountain, Copacabana and Ipanema beaches and Carnival.

Events in September

No major events on our calendar for September.

Coming up later

Réveillon (New Year's Eve)Every year31 December every year

Huge crowds dressed in white watch fireworks over the beach.

Why go: Expect closures and heavy crowds; plan your return trip.

Where: Copacabana Beach

CarnivalDate variesThe days before Ash Wednesday — February or March, date moves each year

Samba schools parade at the Sambadrome and street parties (blocos) fill the city.

Why go: Book far ahead; prices rise and some areas get very crowded.

Where: Sambadrome and streets citywide

Festa JuninaDate variesUsually June

Countryside-themed festivals with bonfires, square dancing and corn treats.

Why go: Locals dress in rustic clothing.

Where: Citywide

Plan this tripTickets, data and transfers for Rio de Janeiro

Airport transfer Kiwitaxi

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