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Town in Misiones, Argentina

Puerto Iguazú weather by month and the best time to visit

Updated October 2026Sources
Apr–Jun, Sep–OctBest time to visit

When to go to Puerto Iguazú

Apr–Jun and Sep–Oct are warm with fewer crowds. Dec–Feb is hot, humid and stormy; Jul and school holidays are busiest. Water flow varies; heavy rain can close trails.

Puerto Iguazú weather by month

Average daily high, rainfall and conditions.

PleasantHotRainyCool or coldBest months
10°15°20°25°30°35°JFMAMJJASOND
Average highAverage lowRainfall

Monthly averages

MonthHighLowRainHumidityConditions
January32°C89°F24°C74°F147 mm73%Pleasant
February32°C89°F23°C74°F129 mm72%Pleasant
March32°C89°F22°C71°F117 mm71%Pleasant
April29°C84°F19°C66°F124 mm74%Pleasant
May24°C75°F15°C59°F163 mm80%Rainy
June22°C72°F14°C57°F108 mm83%Pleasant
July22°C71°F13°C55°F85 mm80%Pleasant
August24°C76°F14°C57°F70 mm74%Pleasant
September27°C81°F16°C61°F121 mm71%Pleasant
October29°C85°F20°C67°F211 mm75%Rainy
November30°C87°F21°C69°F159 mm73%Pleasant
December32°C89°F23°C73°F179 mm71%Rainy

Best months across Argentina

PlaceBest monthsWarmest month
Buenos AiresMar–May, Oct–NovJan (28°C)
MendozaMar–May, Oct–NovJan (33°C)
BarilocheJul–Aug, Dec–MarFeb (22°C)
El CalafateNov–MarFeb (15°C)
El ChalténDec–MarFeb (11°C)
UshuaiaDec–MarFeb (12°C)
SaltaApr–May, Sep–OctNov (32°C)
Puerto IguazúApr–Jun, Sep–OctJan (32°C)
CórdobaMar–May, Sep–NovJan (32°C)
Puerto MadrynSep–NovJan (27°C)
Mar del PlataDec–MarJan (24°C)
Quebrada de HumahuacaApr–May, Sep–OctNov (28°C)
CafayateMar–May, Sep–OctNov (30°C)
RosarioMar–May, Oct–NovJan (33°C)

Quick answers

What is the best month to visit Puerto Iguazú?

Apr–Jun, Sep–Oct. Apr–Jun and Sep–Oct are warm with fewer crowds. Dec–Feb is hot, humid and stormy; Jul and school holidays are busiest. Water flow varies; heavy rain can close trails.

When is the rainy season in Puerto Iguazú?

Rain peaks in October with about 211 mm. Months with 150 mm or more: May, Oct–Dec.

What is the hottest month in Puerto Iguazú?

January, with average highs of 32°C (89°F).

How cold does Puerto Iguazú get?

The coolest nights are in July, averaging 13°C (55°F).

More about Puerto Iguazú

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Sources

Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Temperatures are adjusted by 0.5°C for the city's elevation. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.