The best times to visit Iguazu for ideal weather are
April 16th to September 30th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Iguazu Travel Guide
Other Iguazu Travel Info
Weather in Iguazu
Average temperatures in Iguazu vary somewhat. Considering humidity, temperatures feel nice most of the year, excluding some hot weeks in the summer, with a chance of rain throughout most of the year. The area is somewhat temperate — in the 42nd percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Iguazu, the hottest months are February, January, and then December. See average monthly temperatures below. The warmest time of year is generally late January and early February where highs are regularly around 92.7°F (33.7°C) with temperatures rarely dropping below 69.8°F (21°C) at night.
Iguazu Temperatures (Fahrenheit)
Iguazu Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Iguazu Perceived Temperature (F)
Iguazu Perceived Temperature (C)
Average Iguazu Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Iguazu are August, May, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid to late August. For example, on the week of August 20th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid February with an average of 3 days of significant precipitation the week of February 12th.
When can you find snow in Iguazu? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Iguazu.
Snow on the Ground
The graph below shows the average snow on the ground in Iguazu (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Iguazu has some very humid months, with other comfortably humid months. The least humid month is September (58.8% relative humidity), and the most humid month is May (76.7%).
Wind in Iguazu is usually calm. The windiest month is September, followed by August and October. September’s average wind speed of around 6.7 knots (7.7 MPH or 12.4 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early October where average top sustained speeds reach 14.3 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Iguazu.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||5.2||Light breeze||11.3||Significant breeze|
|Feb||5.6||Light breeze||12.6||Significant breeze|
|Mar||5||Light breeze||10.7||Significant breeze|
|Apr||4.9||Light breeze||10.3||Gentle breeze|
|May||5||Light breeze||10.6||Significant breeze|
|Jun||5.1||Light breeze||10.1||Gentle breeze|
|Jul||5.6||Light breeze||11||Significant breeze|
|Aug||6.5||Light breeze||12.9||Significant breeze|
|Sep||6.7||Light breeze||13.1||Significant breeze|
|Oct||6.5||Light breeze||13.5||Significant breeze|
|Nov||5.9||Light breeze||12.2||Significant breeze|
|Dec||5.4||Light breeze||11.8||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Iguazu?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Argentina; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 24, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Iguazu, Argentina is July, followed by January and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Iguazu in October. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Iguazu Travel Experience by Season
Fall (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 89.8°F (32.1°C) and 69.9°F (21.1°C) with colder temperatures in the later months. Rain is somewhat common with 5 to 6 days of significant precipitation per month. Fall is the second busiest for tourism, which makes it a good time for those looking for things to do.
Winter (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the least precipitation with 3 to 6 days of precipitation per month. June – August is the busiest season for tourism in Iguazu, so lodging and other accommodations may cost more than usual.
Spring (September through November)
Spring daily highs range from 88.6°F (31.4°C) and 79.6°F (26.4°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 6 to 8 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Summer (December through February)
Weather is perfect this time of year in Iguazu to be enjoyable for warm weather travelers. The average high during this season is between 92.7°F (33.7°C) and 87.9°F (31.1°C). On average, it rains or snows a fair amount: 7 to 9 times per month. These times of year are fairly slow with tourists.