May Weather in Alamo, United States

Last updated: June 24, 2025

In Alamo, United States, the average temperature in May hovers around 18°C (64°F). Expect a minimum of 1°C (33°F) and a maximum of 31°C (89°F), offering a diverse range of weather conditions. During this month, precipitation totals 11 mm (0.4 in) spread across 2 days, while the average humidity sits at a comfortable 48%.

May Temperature in Alamo

In May, in Alamo, the average temperature is 18°C (64°F). Maximum temperatures can reach up to 31°C (89°F), while minimums can drop as low as 1°C (33°F). It's advisable to pack layers to stay comfortable during your travels.

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

The chart illustrates May temperature patterns in Alamo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alamo, May typically has an average temperature of 18°C (64°F), with highs reaching up to 31°C (89°F) and lows dropping to around 1°C (33°F).

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

May Precipitation in Alamo

In Alamo in May, the precipitation amount is 11 mm (0.4 in) over the course of 2 days.

May Precipitation Trends in Alamo

The chart displays monthly precipitation patterns in Alamo, 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 Alamo, May typically receives around 11 mm (0.4 inches) of precipitation spread over approximately 2 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 Alamo

In Alamo in May humidity is 48%. With an average temperature of 18°C (64°F), this humidity feels like a refreshing embrace, ideal for exploring the sights without feeling too sticky or uncomfortable.

May Average Humidity in Alamo

This chart illustrates the average monthly humidity levels in Alamo, 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 Alamo is approximately 48%, 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 Alamo

In Alamo in May, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Alamo.

Maximum UV Index Levels in Alamo for May

The chart shows the monthly maximum UV Index (UVI) for Alamo 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 Alamo typically reaches 13, which falls under the extreme exposure category.

Data source: Alamo 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 Alamo Compares to Other Months

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

This table compares monthly weather conditions in Alamo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (35°F)	18 mm (0.7 inches)	81%	moderate
February Weather	4°C (39°F)	16 mm (0.6 inches)	83%	high
March Weather	8°C (47°F)	19 mm (0.8 inches)	71%	very high
April Weather	13°C (56°F)	12 mm (0.5 inches)	61%	extreme
May Weather	18°C (64°F)	11 mm (0.4 inches)	48%	extreme
June Weather	23°C (74°F)	19 mm (0.7 inches)	36%	extreme
July Weather	24°C (75°F)	47 mm (1.8 inches)	37%	extreme
August Weather	23°C (74°F)	33 mm (1.3 inches)	46%	extreme
September Weather	20°C (68°F)	32 mm (1.3 inches)	62%	extreme
October Weather	13°C (56°F)	19 mm (0.8 inches)	74%	very high
November Weather	8°C (46°F)	12 mm (0.5 inches)	82%	high
December Weather	2°C (36°F)	12 mm (0.5 inches)	82%	moderate