Best time to visit Iguazu Falls for good weather
When is the best weather in Iguazu Falls? Monthly breakdown of temperature, rainfall, and sunshine hours — ranked by what actually matters for your trip.
Best month
August
Driest month with stable clear weather — water at minimum but viewing conditions ideal.
↑Driest month of year — boardwalks consistently open
↑Dry low water reveals river bed and rapids upstream
↑Hotel rates back to shoulder-season — Iguazu Grand from USD 220
All months ranked — Good weather
Best match
Driest month with stable clear weather — water at minimum but viewing conditions ideal.
#1 for good weather
Best match
Shoulder month: pleasantly cool (23C/13C), 30% off summer hotel rates, river flow tapering but still strong.
#2 for good weather
Best match
Spring rains return and water levels start rebuilding — strong shoulder month with low crowds.
#3 for good weather
Best match
Possibly the year's best month — perfect 27C/17C temperatures, post-rainy flow still huge, Easter aside crowds drop.
#4 for good weather
Strong option
Wet season starts in earnest — water flow climbs sharply and the jungle re-greens after dry winter.
#5 for good weather
Strong option
Final quiet month before summer holiday rush — rain heavy but volume of falls building dramatically.
#6 for good weather
Strong option
Post-summer sweet spot: still-impressive water flow, fewer crowds, temperatures sliding off summer peak.
#7 for good weather
Strong option
Southern winter school holidays mid-month bring Argentine and Brazilian families back — book accommodation early.
#8 for good weather
Strong option
Dry-season winter peak: cool clear days, lowest water flow visibly, school-holiday crowds at maximum.
#9 for good weather
Worth considering
Christmas-New-Year crush — Brazilian and Argentine domestic tourists hit peak alongside maximum water and humidity.
#10 for good weather
Worth considering
Carnaval week (mid-Feb) pulls Brazilian visitors to Foz; otherwise the wettest, hottest month.
#11 for good weather
Worth considering
Southern summer school holidays + monsoon water volume — Devil's Throat is a roaring wall of mist.
#12 for good weather