Early autumn · Weather & things to do
Iguazú in March
Little changes in Iguazú from February: highs stay near 89°F (32°C), lows near 71°F (22°C), and about 4.6 in (117 mm) of rain falls.
Our comfort score puts it mid-table at 64/100, 7th of 12.
- Avg high
- 89°F (32°C)
- Avg low
- 71°F (22°C)
- Rain
- 4.6 in (117 mm)
- Humidity
- 71%
- Cloud cover
- 54%
- Daylight
- ~12 h 11 min
- Comfort score
- 64/100 · Good
What March feels like
Afternoons run hot at about 89°F (32°C), which leaves mornings and evenings as the time for walking.
After dark, temperatures fall to about 71°F (22°C).
Some rain is likely, about 4.6 in (117 mm) in the month, so pack for a shower or two.
Plan around March
March sits mid-table; the best months are June – September.
- Comfort improves from 57/100 in February to 64/100.
- March sits inside the Mar – May, Sep – Nov window our Buenos Aires, Mendoza & Iguazú route recommends.
What to pack for March
- Light, breathable clothes89°F afternoons
- Sunscreen, sunglasses and a hatstrong sun this month
- Refillable water bottleeasy to dehydrate in the heat
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost picks involve some walking
What to do in Iguazú in March
Start early and take shelter at midday: the picks below pair morning outings with places to cool off.
Aqva Restaurant
Puerto Iguazú restaurant serving river fish like surubí and regional dishes.
Why now March scores 64/100 for comfort, good conditions for being outside.
Garganta del Diablo
U-shaped chasm where half the river plunges 80 m, reached by train and a long catwalk.
Why now Highs near 89°F and 4.6 in of monthly rain make this an easy outdoor pick.
Parque das Aves
Bird park beside the Brazilian park entrance with walk-in aviaries of toucans and macaws.
Why now One to do outside while the weather is on your side.
Parque Nacional do Iguaçu
Brazilian side with a panoramic trail facing the main falls and a walkway into the spray.
Why now Go early — afternoons average 89°F.
El Quincho del Tío Querido
Busy parrilla in Puerto Iguazú with grilled meats and live music most nights.
Why now A break from 89°F afternoons.
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 March: quick answers
Is March a good time to visit Iguazú?
It's middling, scoring 64/100. The best months are June – September, at up to 87. Expect highs of 89°F (32°C) and 4.6 in (117 mm) of rain. March is inside the Mar – May, Sep – Nov window our Buenos Aires, Mendoza & Iguazú route recommends.
How hot is Iguazú in March?
Average highs are 89°F (32°C) and average lows 71°F (22°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Iguazú in March?
Some: about 4.6 in (117 mm) of rain falls across March on average, the 4th-driest month of the year. The annual total is about 63.5 in (1613 mm).
What should I pack for Iguazú in March?
Bring light, breathable clothes (89°F afternoons), sunscreen, sunglasses and a hat (strong sun this month), refillable water bottle (easy to dehydrate in the heat), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most picks involve some walking).
Routes in season in March
- Buenos Aires, Mendoza & Iguazú Mar – May, Sep – Nov
Planning Iguazú in March?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.