The best times to visit Posadas 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 Posadas Travel Info

Weather in Posadas


Average temperatures in Posadas vary somewhat. Considering humidity, temperatures feel hot for about half of the year and otherwise nice with a chance of rain throughout most of the year. The area is less temperate than some — in the 37th 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 Posadas, the hottest months are January, February, 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 94.4°F (34.7°C) with temperatures rarely dropping below 73.5°F (23.1°C) at night.

Posadas Temperatures (Fahrenheit)


Posadas Temperatures (Celsius)


“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.

Posadas Perceived Temperature (F)


Posadas Perceived Temperature (C)



Average Posadas 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 92.7 81.2 72
Feb 92.7 81 72.4
Mar 89.6 77.8 68.8
Apr 84.6 72.7 63.7
May 76.5 65.4 57.5
Jun 72.9 62.2 54
Jul 72.3 61 52.2
Aug 77.6 65.1 55.5
Sep 81.2 68.6 59.3
Oct 85.8 73.3 63.9
Nov 89 76.6 66.7
Dec 91.7 79.8 70.5

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 33.7 27.3 22.2
Feb 33.7 27.2 22.4
Mar 32 25.4 20.4
Apr 29.2 22.6 17.6
May 24.7 18.6 14.2
Jun 22.7 16.8 12.2
Jul 22.4 16.1 11.2
Aug 25.3 18.4 13.1
Sep 27.3 20.3 15.2
Oct 29.9 22.9 17.7
Nov 31.7 24.8 19.3
Dec 33.2 26.6 21.4



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Posadas 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 late July. For example, on the week of July 23rd there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in mid to late September with an average of 3 days of significant precipitation the week of September 17th.

When can you find snow in Posadas? 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 Posadas.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 24% 0 6.3
Feb 27% 0 5
Mar 18% 0 5.7
Apr 23% 0 7.6
May 16% 0 4.8
Jun 22% 0 7.4
Jul 22% 0 6.1
Aug 14% 0 3.1
Sep 25% 0 6.4
Oct 28% 0 9.8
Nov 25% 0 9.8
Dec 30% 0 11.1

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 24 0 16
Feb 27 0 12.7
Mar 18 0 14.5
Apr 23 0 19.3
May 16 0 12.2
Jun 22 0 18.8
Jul 22 0 15.5
Aug 14 0 7.9
Sep 25 0 16.3
Oct 28 0 24.9
Nov 25 0 24.9
Dec 30 0 28.2


Humidity and Wind

Posadas has some high humidity months, with other comfortably humid months. The least humid month is November (55.9% relative humidity), and the most humid month is June (68.9%).

Wind in Posadas is usually calm. The windiest month is October, followed by August and September. October’s average wind speed of around 6.1 knots (7 MPH or 11.2 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 12.7 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Posadas.

Avg. Relative Humidity


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

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 Light breeze 10.9 Gentle breeze
Feb 4.9 Light breeze 10.8 Gentle breeze
Mar 4.6 Light breeze 9.6 Gentle breeze
Apr 4.5 Light breeze 9.6 Gentle breeze
May 4.7 Light breeze 9.3 Gentle breeze
Jun 4.9 Light breeze 9.7 Gentle breeze
Jul 5.1 Light breeze 9.8 Gentle breeze
Aug 6.1 Light breeze 11.5 Significant breeze
Sep 6 Light breeze 11.5 Gentle breeze
Oct 6.1 Light breeze 12.2 Significant breeze
Nov 5.7 Light breeze 11.6 Gentle breeze
Dec 5.3 Light breeze 11.3 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 58.7%
Feb 60.8%
Mar 60.4%
Apr 62.7%
May 68%
Jun 68.9%
Jul 65.3%
Aug 58.7%
Sep 57.4%
Oct 58.6%
Nov 55.9%
Dec 58.8%


Is it Safe to Travel to Posadas?

Our best data indicates this area is generally safe. As of Dec 04, 2023 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 Nov 21, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Posadas, Argentina is January, followed by November and May. 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 Posadas in September. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

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 60.1 in September means 60.1% of the tourists vs. January.



Overall Posadas Travel Experience by Season

Fall (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 91.3°F (32.9°C) and 71°F (21.7°C) with colder temperatures in the later months. Rain is somewhat common with 5 to 7 days of significant precipitation per month. Fall is fairly slow for tourism, which makes it a good time for those looking for deals.

Winter (June through August)

The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see moderate precipitation with 4 to 7 days of precipitation per month. June – August is the second busiest season for tourism in Posadas, so lodging and other accommodations may cost slightly more.

Spring (September through November)

Spring daily highs range from 91.5°F (33.1°C) and 79.2°F (26.2°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 8 to 9 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 Posadas to be enjoyable for warm weather travelers. The average high during this season is between 94.4°F (34.7°C) and 89.5°F (31.9°C). On average, it rains or snows a fair amount: 7 to 9 times per month. These times of year are the busiest with tourists.


Best Times to TravelArgentina › Posadas, Argentina