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May Weather in Alamo, United States

Last updated: June 24, 2025

The average temperature in Alamo, United States during May is a comfortable 22°C (71°F), making it an appealing destination. However, temperatures can range from a chilly 5°C (42°F) to a warm 33°C (92°F). Visitors should be prepared for 101 mm (4.0 in) of precipitation over approximately 11 days, with an average humidity of 83%. Whether you're looking for a mild climate or planning for occasional rain, it's essential to pack accordingly!

May Temperature in Alamo

In May, in Alamo, the average temperature is 22°C (71°F). The maximum can reach 33°C (92°F) and the minimum can be as low as 5°C (42°F). This makes Alamo a versatile destination, suitable for travelers seeking both warm days and cooler nights.

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 22°C (71°F), with highs reaching up to 33°C (92°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec414554607178817975644946
Data source: Temperature data for Alamo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Alamo

In Alamo in May, the precipitation amount is 101 mm (4.0 in) spread over 11 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 101 mm (4.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec10017317214910110612210311211688142
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Alamo

In Alamo in May humidity is 83%. With an average temperature of 22°C (71°F), this humidity feels like a warm blanket wrapping around you, making travel a bit sticky but still enjoyable, as long as you stay hydrated and take breaks in the shade.

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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%81%83%83%80%74%70%73%85%88%
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 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)100 mm (3.9 inches)86%moderate
February Weather7°C (45°F)173 mm (6.8 inches)85%high
March Weather12°C (54°F)172 mm (6.8 inches)84%high
April Weather16°C (60°F)149 mm (5.9 inches)81%very high
May Weather22°C (71°F)101 mm (4.0 inches)83%very high
June Weather26°C (78°F)105 mm (4.2 inches)83%extreme
July Weather27°C (81°F)122 mm (4.8 inches)80%extreme
August Weather26°C (79°F)103 mm (4.1 inches)73%very high
September Weather24°C (75°F)112 mm (4.4 inches)70%very high
October Weather18°C (64°F)116 mm (4.6 inches)73%high
November Weather10°C (50°F)88 mm (3.5 inches)85%moderate
December Weather8°C (46°F)142 mm (5.6 inches)88%moderate

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