Brazil
Iguazu Falls in May
🍂 AutumnPleasant and some showers.
🎒 Pack: compact umbrella or rain jacket
Why May scores 9.1What goes into the score
How it works- Weather comfort8.9
- ✓Comfortable temperatures (25°C highs / 12°C lows)
- ✓Comfortable humidity (dew point 13°C)
- !Wet: ~128 mm rain, ~3 heavy-rain days
- Air quality9.8
- ✓Good (within WHO guideline) (PM2.5 ~7 µg/m³)
- Seasonal hazards10.0
- ·No notable seasonal hazards
- Safety baseline6.5
- ·Increased caution
| May | Jul | |
|---|---|---|
| Score | 9.1 Excellent | 9.1 Excellent |
| Season | 🍂 Autumn | 🧥 Winter |
| High / low | 25° / 12° | 24° / 10° |
| Rain | 128 mm | 84 mm |
| Humidity | dew pt 13° | dew pt 11° |
| PM2.5 | 7 µg/m³ | 9 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 & crowdsMay 2027
No long holidaysNo long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.
Other public holidays: Worker's Day (1 May)
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 locallyA vast system of waterfalls on the border of Brazil and Argentina, reached from Foz do Iguaçu and Puerto Iguazú, surrounded by subtropical rainforest.
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
Brazilian side panoramic trail
A walkway with wide views across the falls, ending on a platform near the Devil's Throat.
💡 Half a day is usually enough for the Brazilian side.
Garganta del Diablo (Argentina)
A walkway leading to the edge of the largest, U-shaped cascade.
💡 Expect to get wet; bring a waterproof bag for electronics.
Argentine upper and lower circuits
Trails giving close-up views from above and below the falls.
💡 Allow a full day for the Argentine side.
Boat trips under the falls
Speedboat rides that approach the falls and drench passengers, from both sides.
Parque das Aves
A bird park near the Brazilian park entrance with walk-through aviaries of Atlantic Forest birds.
Itaipu Dam
One of the world's largest hydroelectric dams, shared by Brazil and Paraguay, with guided tours.
Churrasco
Brazilian grilled meats, often served rodízio style with cuts carved at the table.
💡 Churrascarias in Foz do Iguaçu
Surubí
A large river catfish, served grilled or in stews.
💡 Restaurants in Puerto Iguazú
Chipa
Small cheesy cassava-flour breads, common in the border region.
Yerba mate and tereré
Herbal mate drunk hot or, as tereré, cold, a strong regional tradition.
Yerba mate set
Yerba mate with a gourd and metal straw (bombilla).
Semi-precious stones
Amethyst, agate and other stones from southern Brazil.
💡 Shops in Foz do Iguaçu
Guaraní crafts
Wooden animal carvings and woven baskets made by Guaraní communities.
Airport transfer Kiwitaxi
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