August · Argentina
Best time to visit Iguazu Falls in August Weather, crowds & prices
Weather in Iguazu Falls in August
Average temperature 19°C, 80 mm of rain, about 26 days with 6+ hours of sunshine and 70% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
8.7/10
Ranked #1 of 12 months
- Avg temp
- 19°C
- Rainfall
- 80 mm
- Humidity
- 70%
- Days with 6h+ sun
- 26
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Iguazu Falls scores 8.7/10 for nature and wildlife travel - the single best month of the year. Expect around 19°C, 80 mm of rain, and roughly 26 days with 6+ hours of sunshine this month.
Iguazú Falls spans the Argentina-Brazil border, with walkways above and below the river's main cascades.
August: the best month of the year in Iguazu Falls
August averages 19°C (66°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 80 mm, so plan one flexible day in three; you still get about 26 days with 6+ hours of sunshine and 11.2 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Iguazu Falls at 8.7/10 — the reference point every other month on this page is measured against.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer, footwear you can get muddy.
Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Iguazu Falls in August?
- In August, Iguazu Falls averages 19°C, 80 mm of rain, and about 26 days with 6+ hours of sunshine. Its climate-comfort score is 8.7/10.
- Is August a good time to visit Iguazu Falls?
- August earns a 8.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Iguazu Falls in August?
- Expect about 80 mm of rain in August. Average humidity is 70% and there are about 26 days with 6+ hours of sunshine.
Curated in Iguazu Falls
Tickets & experiences
Things to do in Iguazu Falls
Iguazu Falls, Argentina. Live activities and tours from GetYourGuide, matched to this destination.