SeasonScore
Iguazu Falls, Brazil
Photo: SF Brit · CC BY 2.0

Brazil

Iguazu Falls in October

🌷 Spring

Warm and very wet.

🎒 Pack: compact umbrella or rain jacket

Best months: May (9.1), Jul (9.1), Aug (9.1)

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Why October scores 8.3What goes into the score

How it works
🌡️ 29° / 15°C🌧️ 220 mm💧 dew pt 16°🍃 PM2.5 11
  • Weather comfort7.9
    • ✓Warm (29°C highs / 15°C lows)
    • ✓Slightly humid (dew point 16°C)
    • !Wet: ~220 mm rain, ~6 heavy-rain days
  • Air quality9.1
    • ✓Good (within WHO guideline) (PM2.5 ~11 µg/m³)
  • Seasonal hazards9.5
    • !Flood: ~6 heavy-rain days in an average October
  • Safety baseline6.5
    • ·Increased caution
Compare monthsPut October side by side with another month
OctMay
Score8.3 Very good9.1 Excellent
Season🌷 Spring🍂 Autumn
High / low29° / 15°25° / 12°
Rain220 mm128 mm
Humiditydew pt 16°dew pt 13°
PM2.511 µg/m³7 µg/m³

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

Holidays & crowdsOctober 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: Our Lady of Aparecida (12 Oct)

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

Explore Iguazu FallsEvents, sights, food & souvenirs

Check event dates locally

A vast system of waterfalls on the border of Brazil and Argentina, reached from Foz do Iguaçu and Puerto Iguazú, surrounded by subtropical rainforest.

Events in October
Full moon walksDate variesA few nights around each full moon, weather permitting

Guided night visits to the Devil's Throat by moonlight.

Why go: Places are limited and walks are cancelled in cloudy or rainy weather.

Where: Garganta del Diablo, Argentine side

Coming up later

High water seasonDate variesUsually December to March, but varies with rainfall

Summer rains often bring the highest flow and most dramatic falls.

Why go: Water levels depend on upstream rain and can change sharply; heavy flow can close some walkways.

Where: Both sides of the falls

Plan this tripTickets, data and transfers for Iguazu Falls

Airport transfer Kiwitaxi

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