May Weather in Alto, United States

Last updated: June 24, 2025

In May, the average temperature in Alto, United States is a pleasant 24°C (75°F). However, temperatures can vary significantly, with lows of 7°C (45°F) and highs reaching 36°C (96°F). Visitors should also prepare for 145 mm (5.7 in) of precipitation spread over 13 days, contributing to an average humidity level of 81%.

May Temperature in Alto

In May in Alto, the average temperature is 24°C (75°F). Maximums can reach 36°C (96°F), while minimums can drop as low as 7°C (45°F). It’s advisable to pack a variety of clothing to comfortably enjoy the diverse weather during your travels.

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

The chart illustrates May temperature patterns in Alto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alto, May typically has an average temperature of 24°C (75°F), with highs reaching up to 36°C (96°F) and lows dropping to around 7°C (45°F).

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

May Precipitation in Alto

In Alto in May, the precipitation amount is 145 mm (5.7 in) over the course of 13 days.

May Precipitation Trends in Alto

The chart displays monthly precipitation patterns in Alto, 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 Alto, May typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 13 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 Alto

In Alto in May humidity is 81%. With an average temperature of 24°C (75°F), this humidity feels like a warm, thick blanket enveloping you, making traveling a bit sticky and sweaty, yet still inviting for those who enjoy the rich, tropical atmosphere.

May Average Humidity in Alto

This chart illustrates the average monthly humidity levels in Alto, 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 Alto is approximately 81%, 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 Alto

In Alto in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Alto.

Maximum UV Index Levels in Alto for May

The chart shows the monthly maximum UV Index (UVI) for Alto 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 Alto typically reaches 11, which falls under the extreme exposure category.

Data source: Alto 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 Alto Compares to Other Months

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

This table compares monthly weather conditions in Alto, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	101 mm (4.0 inches)	79%	moderate
February Weather	11°C (53°F)	135 mm (5.3 inches)	80%	high
March Weather	16°C (62°F)	115 mm (4.5 inches)	78%	very high
April Weather	19°C (66°F)	142 mm (5.6 inches)	79%	extreme
May Weather	24°C (75°F)	145 mm (5.7 inches)	81%	extreme
June Weather	27°C (81°F)	111 mm (4.4 inches)	77%	extreme
July Weather	29°C (84°F)	80 mm (3.2 inches)	71%	extreme
August Weather	29°C (85°F)	102 mm (4.0 inches)	67%	extreme
September Weather	26°C (80°F)	97 mm (3.8 inches)	69%	very high
October Weather	21°C (70°F)	121 mm (4.8 inches)	73%	very high
November Weather	14°C (58°F)	76 mm (3.0 inches)	82%	high
December Weather	12°C (54°F)	116 mm (4.6 inches)	87%	moderate