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Furthermore, we analyzed all climate data and provide a recommendation about which months are best to visit Iguazú Falls for your holiday.
Climate Overview
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General and Geography
Table of Contents
The Iguazú Falls are located directly on the border between Argentina and Brazil, not far from the border triangle with Paraguay.
Due to the different national languages Spanish and Portuguese there are also different spellings for the world-famous waterfalls, since the Brazilians write the river Iguaçu, whereas the Argentine line Iguazú. Both variants, of course, describe the same natural spectacle.
With a total width of 2.4 miles, Iguazú is home to over 250 large and small waterfalls, making it undoubtedly one of the most breathtaking waterfalls in the world.
As the largest area is on the Argentine side, the Brazilian side of the national park offers a better overview and fantastic panoramic views. The border crossing is somewhat unbureaucratic, which is why we strongly recommend visiting both sides for a visit to the Iguazú waterfalls.
The city of Foz do Iguacu itself is not worth seeing, but it has a small airport with good connections to Sao Paulo and Rio de Janeiro.
Climate at the Iguazú Waterfalls
The region around Iguaçu and Iguazú has a humid, subtropical climate, which runs opposite to the European seasons. Midsummer is therefore between the end of November and the end of February, but winter from the beginning of June to the end of August.
The climate in summer is hot and sometimes quite humid, especially around Christmas until the end of January the highest average temperatures are often recorded. The humidity is also extremely high during this time. Precipitation can occur in the region at any time of year.
Nevertheless, the Brazilian winter, especially the month of July, is not only significantly cooler but also noticeably drier. Especially at night it can now cool down to up to 10 °C, during the day average values of around 24 °C are usually reached.
Best Time to Visit Iguazú Falls: Overview
JanuaryJan MidsummerMidsommer Main SeasonMain Season | FebruaryFeb Best time to traveltime PerfectPerf. climate in Foz do Iguaçu | MarchMar Best time to traveltime PerfectPerf. climate in Foz do Iguaçu | AprilApr Best time to traveltime PerfectPerf. climate in Foz do Iguaçu | MayMay Best time to traveltime PerfectPerf. climate in Foz do Iguaçu | JuneJun Good time to traveltime very goodgutes climate in Foz do Iguaçu |
JulyJul Good time to traveltime very goodgutes climate in Foz do Iguaçu | AugustAug Best time to traveltime PerfectPerf. climate in Foz do Iguaçu | SeptemberSep Best time to traveltime PerfectPerf. climate in Foz do Iguaçu | OctoberOct Suitable time to travelSuitable time wet and hotwet + hot | NovemberNov Suitable time to travelSuitable time wet and hotwet + hot | DecemberDec MidsummerMidsommer Main SeasonMain Season |
When is the best time to visit the Iguazú Falls?
The waterfalls in Iguazú are worth a visit all year round, with the main season for South Americans being during the summer holidays (i.e. in the German winter towards December and January). The falls reach their highest water level between December and March, not least because of the higher rainfall.
The best time to visit Iguazú also depends to a certain extent on your own expectations: the Brazilian winter is too fresh for some visitors, but the sky is often clear and there are fantastic rainbows. In addition, the paths are now easier to pass with slightly lower water levels and additional outdoor activities are now possible.
Our tip for the best time to travel to Iguazú Falls is a combination of pleasant weather with moderate temperatures and a good chance of blue skies for even more beautiful impressions and photos. According to this, we particularly recommend March to the beginning of May and August to September to visitors.
Due to the good travel conditions also outside these core times, we can recommend the entire period from February (i.e. after the end of the absolute high season) to the end of September to our readers with a clear conscience.
Climate Chart Iguazú Falls
Foz do Iguaçu

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Source of Data: German Weather Service (Offenbach) and Wikipedia
Climate Table Iguazú Falls
In the following, you will find the climate table for Iguazú Falls, containing information about Temperatures, Precipitation, and Hours of Sunshine.Temperatures, Precipitation, Sunshine in Foz do Iguaçu (Iguazú Falls)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day Temperature | 33° | 33° | 32° | 30° | 26° | 25° | 24° | 26° | 28° | 30° | 31° | 33° |
| Night Temperature | 22° | 21° | 20° | 18° | 14° | 13° | 12° | 13° | 15° | 18° | 19° | 20° |
| Precipitation (inch) | 6.65 | 4.8 | 4.37 | 5.51 | 5.43 | 4.88 | 2.83 | 3.86 | 5.43 | 6.73 | 5.98 | 5.63 |
| Rainy days | 12 | 10 | 9 | 9 | 9 | 9 | 6 | 7 | 9 | 12 | 10 | 10 |
| Hours of Sunshine | 13 | 13 | 12 | 11 | 11 | 10 | 11 | 11 | 12 | 13 | 13 | 13 |
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Temperatures
The annual average temperature in Foz do Iguaçu is 22.9 °C.For comparison: London 11 °C, NYC 12 °C, LA 17.9 °C
Warmest month: January (27.3 °C)
Coldest month: July (18 °C)
Precipitation
Overall annual precipitation: 62.13 inch on 112 rainy daysFor comparison: London 24.06 in, NYC 41.57 in, LA 12.01 in
There is no rainy season (months with more than 6.9 in of precipitation).
You cannot expect snow in any month in Foz do Iguaçu.
Sunshine
As our climate table shows, January is the sunniest month with an average of 13.4 hours of sunshine per day. Over the year, there are 12 hours of sunshine per day on average. For comparison: London has 4.1, NYC has 7 and LA has 8.9 hours of sunshine per day on average.Hotels and recommendations
Even if there are accommodations for every travel budget in the surrounding villages, a stay directly in the National Park makes the visitor to the waterfalls even more extraordinary. In the Iguazú National Park (Argentina), only the upscale Sheraton Iguazú Resort & Spa has this exclusive location.
On the Brazilian side, the luxurious Belmond Hotel das Cataratas (our hotel tip!) is one of the best hotels in South America directly on the falls, surrounded by dense rainforest. For the visit of the waterfalls two full days should be planned, one of them on the Argentine side.
The two national parks have a colourful fauna, with the cheeky coatis at the Iguazú waterfalls being omnipresent. The highlight of the falls is the mighty Garganta do Diabo, where the wooden bridges lead into the heart of the waterfalls.
More information about the best things to do: Brazil
Popular Activities
Iguazu Falls: Full-Day Private Tour in Brazil & Argentina
Wheelchair accessible
from 78 $ »
both sides of Iguazu Falls (Brazil & Argentina) on a private full-day tour. Visit the iconic Devil’s Throat, enjoy smooth border crossing, optimized itinerary, and optional boat ride/helicopter flight
Puerto Iguazú Combo: 3-Day Iguazú Falls with Tours + Transfers
Private tours
from 90 $ »
Enjoy the most impressive waterfalls in the world from both the Argentine and Brazilian sides on this guided 3-day tour that includes 2 tours + transfers airport/hotel/airport in Puerto Iguazú.
Iguazu Falls: 10-Minute Helicopter Ride & Admission Ticket
Tours
from 189 $ »
Take a 10-minute helicopter flight over Iguassu Falls and see the scale of the waterfalls and surrounding landscape from above.
More attractions
From Foz do Iguacu Airport: Puerto Iguazu Private Transfer | From Buenos Aires: 3-Day Iguazu Falls Tour with Airfare | Private Transfer from Puerto Iguazu Airport to Foz do Iguaçu | Foz do Iguaçu: Guided Canoeing and Waterfalls Expedition | Iguazu Falls: National Park Official Ticket | Iguazu Falls: Private Tour for Belmond, Meliá & Sanma Guests | Foz do Iguaçu: Airport Transfer to/from City |Current Weather and Forecast
Current Weather in Foz do Iguaçu (Station Puerto Canoas)
Clouds: 75 % Wind: 10 mph N
Air Pressure: 1007 hPa Humidity: 83 %
0.2 in of rain (last 3 hours)
Air Pressure: 1007 hPa Humidity: 83 %
0.2 in of rain (last 3 hours)
Last updated: 4th Nov 2026, 01:34 pm
The next days …
| 5th Nov 2026 | 6th Nov 2026 | 7th Nov 2026 | 8th Nov 2026 | 9th Nov 2026 | 10th Nov 2026 |
|---|---|---|---|---|---|
| 19 °C to 35 °C | 16 °C to 33 °C | 22 °C to 28 °C | 16 °C to 27 °C | 13 °C to 28 °C | 14 °C to 28 °C |
| Clouds: 82 % | Clouds: 18 % | Clouds: 96 % | Clouds: 16 % | Clouds: 100 % | Clouds: 5 % |
| 0.33 in of rain | 0 in of rain | 0.72 in of rain | 0 in of rain | No Precipitation | No Precipitation |
Weather information provided by OpenWeatherMap. (CC BY-SA)
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Brazil: Regions
Iguazú Falls is part of the holiday destination Brazil. We analyzed the climate for additional regions, in order to provide you with information about the best time to visit and the expected holiday weather:Share your Experience and Win
We want to know: how was the weather during your Iguazú Falls holiday? You can win a travel coupon of 1000 $. The price will be raffled among all submissions.
![Cataratas do Iguacu (Nico Kaiser) [flickr.com] CC BY
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![Sunset over Iguazu (SF Brit) [flickr.com] CC BY
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![Parque Nacional do Iguaçú / Iguaçu National Park (Deni Williams) [flickr.com] CC BY
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Iguazú Falls: Experiences of our Visitors
During our stay it was permanently cloudy and partly even rained.
Weather Rating: 2 stars – Tricky
perfect travel weather and very impressive. the most beautiful station of our trip and a great addition to rio de janeiro, the beaches and the amazonas. i find iguazu even more blatant than the niagara or viktoria falls!
Weather Rating: 5 stars – Excellent
Perfect conditions in April at the Iguazu Falls, great impressive water level, no rain, but lots of sun and pleasant summer temperatures. A perfect experience!
Weather Rating: 5 stars – Excellent
We didn’t have any sun. Nevertheless, there were unbelievable moments with lots of water and a permanent roar of the waterfalls. I don’t want to miss this atmosphere with a lot of steam and spray in connection with defuse lighting conditions! If the weather is fine, anyone can!
Weather Rating: 3 stars – Mixed