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.

 

 


Other Iguazu Travel Info

Weather in Iguazu

Temperature

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)

Key
High
Average
Low

Iguazu Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

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)

Key
High
Average
Low

Iguazu Perceived Temperature (C)

Key
High
Average
Low

 

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.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 90.3 78 69.2
Feb 90.5 78.2 69.8
Mar 88.3 75.5 66.8
Apr 82.5 70.3 62.1
May 74.8 63.6 56.3
Jun 72.6 61.4 54
Jul 72.6 60.6 52.5
Aug 79 65.3 55.6
Sep 82.2 68.3 58.5
Oct 85.2 72.5 63.3
Nov 86.9 74.5 65
Dec 89.1 77.1 68.2

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 32.4 25.6 20.7
Feb 32.5 25.7 21
Mar 31.3 24.2 19.3
Apr 28.1 21.3 16.7
May 23.8 17.6 13.5
Jun 22.6 16.3 12.2
Jul 22.6 15.9 11.4
Aug 26.1 18.5 13.1
Sep 27.9 20.2 14.7
Oct 29.6 22.5 17.4
Nov 30.5 23.6 18.3
Dec 31.7 25.1 20.1

 


 

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.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Iguazu (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 22% 0 4.7
Feb 28% 0 4.6
Mar 17% 0 3.5
Apr 21% 0 4.7
May 17% 0 5.3
Jun 18% 0 4.7
Jul 19% 0 3.6
Aug 9% 0 1.6
Sep 20% 0 4.7
Oct 27% 0 5.5
Nov 23% 0 4.9
Dec 28% 0 6.6

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 22 0 11.9
Feb 28 0 11.7
Mar 17 0 8.9
Apr 21 0 11.9
May 17 0 13.5
Jun 18 0 11.9
Jul 19 0 9.1
Aug 9 0 4.1
Sep 20 0 11.9
Oct 27 0 14
Nov 23 0 12.4
Dec 28 0 16.8

 

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.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

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
Jan 66%
Feb 66.8%
Mar 66.4%
Apr 72%
May 76.7%
Jun 76%
Jul 70.7%
Aug 59.7%
Sep 58.8%
Oct 63.4%
Nov 64.2%
Dec 67.6%

 

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

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 49.6 in October means 49.6% of the tourists vs. July.

 

 

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.

 

Best Times to TravelArgentina › Iguazu, Argentina