Iguazu Falls in September
Great time to visit
September kicks off the return to Iguazu's glory with warming weather and strengthening falls. You get the best of both worlds - reasonable crowds and improving conditions.
Weather
Spring awakens with warming temperatures and returning rainfall that starts boosting water levels. Pleasant days with cool mornings and warm afternoons create ideal hiking conditions. Humidity stays reasonable.
25°C high13°C low6 rain days
Crowds & Cost
moderate crowds
~$125/day average
Events & Festivals
- •Spring Day (September 21)
- •Student Day (September 21 - Argentina)
September Tips
- •Perfect shoulder season with improving water levels
- •Weather is ideal for longer hikes and exploration
- •Book helicopter tours as conditions improve
All Months
March through May and September through November hit the sweet spot — decent water levels without the crushing summer heat or winter crowds. December through February brings 100°F temperatures and every tour bus in South America. June through August is cooler but drier, so the falls lose some of their punch. The water flow changes dramatically based on rainfall upstream. After heavy rains, the falls turn chocolate brown and roar like freight trains. During dry spells, some of the smaller cascades barely trickle. Check recent photos online before you go — there's nothing worse than showing up to find Devil's Throat at half power. Weekdays are always better than weekends. Get to the parks right when they open at 8 AM to beat the tour groups.
Iguazu Falls Scores
Solo
8/10
Couples
9/10
Families
9/10
Adventure
8/10
Budget
6/10
Luxury
7/10
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