May Weather in Merlo, Argentina

Last updated: August 22, 2025

In May, the average temperature in Merlo, Argentina hovers around 11°C (53°F). Be prepared for a chill, as the minimum can plummet to -3°C (26°F), while the mercury may rise to a pleasant 28°C (83°F). Expect some light rain with an average precipitation of 23 mm (0.9 in) spread over 5 days, accompanied by a comfortable average humidity of 67%.

May Temperature in Merlo

In May in Merlo, the average temperature is 11°C (53°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -3°C (26°F). This makes it essential for travelers to pack for a range of weather conditions, from warm days to chilly nights.

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

The chart illustrates May temperature patterns in Merlo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Merlo, May typically has an average temperature of 11°C (53°F), with highs reaching up to 28°C (83°F) and lows dropping to around -3°C (26°F).

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

May Precipitation in Merlo

In Merlo in May, the precipitation amount is 23 mm (0.9 in) over the course of 5 days.

May Precipitation Trends in Merlo

The chart displays monthly precipitation patterns in Merlo, 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 Merlo, May typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 5 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 Merlo

In Merlo in May humidity is 67%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that can make outdoor activities less enjoyable, often leading travelers to seek refuge indoors or dress in layers to stay comfortable.

May Average Humidity in Merlo

This chart illustrates the average monthly humidity levels in Merlo, 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 Merlo is approximately 67%, 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 Merlo

In Merlo 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 Merlo, you can refer to this Hourly UV Index in Merlo.

Maximum UV Index Levels in Merlo for May

The chart shows the monthly maximum UV Index (UVI) for Merlo 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 Merlo typically reaches 6, which falls under the high exposure category.

Data source: Merlo 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 Merlo Compares to Other Months

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

This table compares monthly weather conditions in Merlo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (71°F)	113 mm (4.4 inches)	40%	extreme
February Weather	20°C (67°F)	122 mm (4.8 inches)	48%	extreme
March Weather	18°C (64°F)	91 mm (3.6 inches)	53%	extreme
April Weather	15°C (60°F)	68 mm (2.7 inches)	63%	very high
May Weather	11°C (53°F)	23 mm (0.9 inches)	67%	high
June Weather	8°C (46°F)	14 mm (0.5 inches)	61%	moderate
July Weather	7°C (46°F)	10 mm (0.4 inches)	55%	moderate
August Weather	10°C (51°F)	5 mm (0.2 inches)	48%	high
September Weather	13°C (56°F)	29 mm (1.1 inches)	45%	very high
October Weather	16°C (60°F)	46 mm (1.8 inches)	43%	extreme
November Weather	18°C (65°F)	121 mm (4.8 inches)	45%	extreme
December Weather	21°C (69°F)	89 mm (3.5 inches)	40%	extreme