May Weather in Posadas, Argentina

Last updated: August 22, 2025

In May, the average temperature in Posadas, Argentina hovers around 19°C (66°F). Expect a range where the minimum can dip to 7°C (44°F) and the maximum soars to 33°C (92°F). During this time, prepare for 211 mm (8.3 in) of precipitation over approximately 11 days, paired with an average humidity of 82%.

May Temperature in Posadas

In May in Posadas, the average temperature is 19°C (66°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 7°C (44°F). This mild climate makes it an ideal time for outdoor adventures and sightseeing.

May Weather in Posadas: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Posadas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Posadas, May typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 7°C (44°F).

Data source: Temperature data for Posadas generated using information from the Copernicus Climate Change Service.

May Precipitation in Posadas

In Posadas, in May, the precipitation amount is 211 mm (8.3 in) over the course of 11 days.

May Precipitation Trends in Posadas

The chart displays monthly precipitation patterns in Posadas, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Posadas, May typically receives around 211 mm (8.3 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Posadas

In Posadas in May humidity is 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

May Average Humidity in Posadas

This chart illustrates the average monthly humidity levels in Posadas, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Posadas is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Posadas

In Posadas in May, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Posadas, you can refer to this Hourly UV Index in Posadas.

Maximum UV Index Levels in Posadas for May

The chart shows the monthly maximum UV Index (UVI) for Posadas in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Posadas typically reaches 6, which falls under the high exposure category.

Data source: Posadas May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How May Weather in Posadas Compares to Other Months

Weather in Posadas varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Posadas, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Posadas, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	156 mm (6.2 inches)	77%	extreme
February Weather	26°C (79°F)	91 mm (3.6 inches)	71%	extreme
March Weather	25°C (77°F)	106 mm (4.2 inches)	74%	extreme
April Weather	22°C (72°F)	122 mm (4.8 inches)	82%	very high
May Weather	19°C (66°F)	211 mm (8.3 inches)	82%	high
June Weather	17°C (63°F)	94 mm (3.7 inches)	73%	moderate
July Weather	16°C (61°F)	80 mm (3.1 inches)	67%	high
August Weather	18°C (65°F)	72 mm (2.8 inches)	49%	high
September Weather	21°C (70°F)	101 mm (4.0 inches)	54%	very high
October Weather	23°C (73°F)	175 mm (6.9 inches)	58%	extreme
November Weather	24°C (76°F)	142 mm (5.6 inches)	69%	extreme
December Weather	26°C (79°F)	82 mm (3.2 inches)	84%	extreme