Mid-spring · Weather & things to do
Iguazú in October
The year's rain peaks now, with about 8.3 in (211 mm) falling in Iguazú, alongside highs near 85°F (29°C) and lows of 67°F (20°C).
With a comfort score of 57/100 (10th of 12), it's one of the toughest months, held back mainly by rain.
- Avg high
- 85°F (29°C)
- Avg low
- 67°F (20°C)
- Rain
- 8.3 in (211 mm)
- Humidity
- 75%
- Cloud cover
- 60%
- Daylight
- ~12 h 37 min
- Comfort score
- 57/100 · Fair
What October feels like
Highs settle around 85°F (29°C), warm enough for short sleeves.
Lows average 67°F (20°C).
Humidity averages 75%, so the air feels sticky and the heat feels stronger than the thermometer says.
Rain is a real factor, with about 8.3 in (211 mm) across the month.
Plan around October
October is one of the lower-scoring months here; the best are June – September.
- Start of the wettest three-month stretch (October – December), which brings about 21.6 in (549 mm) in total.
- Humidity season begins: 75% on average, up from 71% in September.
- Comfort slips from 81/100 in September to 57/100.
- October sits inside the Mar – May, Sep – Nov window our Buenos Aires, Mendoza & Iguazú route recommends.
What to pack for October
- Light, breathable clotheshighs average 85°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Quick-dry fabrics75% average humidity
- Rain jacket and waterproof shoesfrequent rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Iguazú in October
With 8.3 in of rain, these picks lean toward food, drink and places with a roof, with outdoor options when the weather breaks.
El Quincho del Tío Querido
Busy parrilla in Puerto Iguazú with grilled meats and live music most nights.
Why now A sit-down stop to wait out showers in a month with 8.3 in of rain.
Gran Meliá Iguazú
Hotel inside the Argentine park whose bar and terrace look straight at the falls.
Aqva Restaurant
Puerto Iguazú restaurant serving river fish like surubí and regional dishes.
Gran Aventura
Jeep through the jungle then a speedboat ride straight into the base of the falls.
Hito Tres Fronteras
Lookout where Argentina, Brazil and Paraguay meet at the river junction.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Iguazú in October: quick answers
Is October a good time to visit Iguazú?
It's one of the tougher months here, scoring 57/100, held back mainly by rain. The best months are June – September. Expect highs of 85°F (29°C) and 8.3 in (211 mm) of rain. October is inside the Mar – May, Sep – Nov window our Buenos Aires, Mendoza & Iguazú route recommends.
How hot is Iguazú in October?
Average highs are 85°F (29°C) and average lows 67°F (20°C), making it the 6th-warmest month by daytime highs.
Does it rain a lot in Iguazú in October?
Yes: about 8.3 in (211 mm) of rain falls across October on average, the wettest month of the year. The annual total is about 63.5 in (1613 mm).
What should I pack for Iguazú in October?
Bring light, breathable clothes (highs average 85°F), sunscreen, sunglasses and a hat (high UV on clear days), quick-dry fabrics (75% average humidity), rain jacket and waterproof shoes (frequent rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Routes in season in October
- Buenos Aires, Mendoza & Iguazú Mar – May, Sep – Nov
Planning Iguazú in October?
Share this October plan with your group, poll everyone on dates and keep the packing list in one place.