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May Weather in Los Altos, Mexico

Last updated: August 26, 2025

In May, the average temperature in Los Altos, Mexico hovers around 28°C (83°F). You can expect a comfortable minimum of 18°C (65°F), but be prepared for heatwaves that may soar up to 39°C (103°F). Rainfall totals around 111 mm (4.4 in), spread over approximately 10 days, while the air remains humid with an average of 82%.

May Temperature in Los Altos

In May in Los Altos, the average temperature is 28°C (83°F). Maximums can reach 39°C (103°F), while minimums can drop to as low as 18°C (65°F). It's an ideal time for travelers to enjoy warm weather, so be sure to pack accordingly for both the heat and cooler evenings.

May Weather in Los Altos: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Los Altos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Los Altos, May typically has an average temperature of 28°C (83°F), with highs reaching up to 39°C (103°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec687074798383848482797369
Data source: Temperature data for Los Altos 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 Los Altos

In Los Altos in May, the precipitation amount is 111 mm (4.4 in) over a span of 10 days.

May Precipitation Trends in Los Altos

The chart displays monthly precipitation patterns in Los Altos, 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 Los Altos, May typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec4528354411112694891611664721
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Los Altos

In Los Altos in May, humidity is 82%. With an average temperature of 28°C (83°F), this humidity feels like stepping into a warm, damp embrace, which can make traveling feel heavy and exhausting, as every movement can be met with a sticky veil of moisture that clings to the skin.

May Average Humidity in Los Altos

This chart illustrates the average monthly humidity levels in Los Altos, 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 Los Altos is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Los Altos

In Los Altos in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Los Altos.

Maximum UV Index Levels in Los Altos for May

The chart shows the monthly maximum UV Index (UVI) for Los Altos 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 Los Altos typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111212121312121087
Data source: Los Altos 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 Los Altos Compares to Other Months

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

This table compares monthly weather conditions in Los Altos, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)45 mm (1.8 inches)88%high
February Weather21°C (70°F)28 mm (1.1 inches)86%very high
March Weather23°C (74°F)35 mm (1.4 inches)83%extreme
April Weather26°C (79°F)44 mm (1.7 inches)80%extreme
May Weather28°C (83°F)111 mm (4.4 inches)82%extreme
June Weather29°C (84°F)126 mm (5.0 inches)79%extreme
July Weather29°C (84°F)94 mm (3.7 inches)72%extreme
August Weather29°C (85°F)89 mm (3.5 inches)74%extreme
September Weather28°C (83°F)161 mm (6.3 inches)84%extreme
October Weather26°C (79°F)166 mm (6.5 inches)92%very high
November Weather23°C (73°F)47 mm (1.8 inches)91%very high
December Weather21°C (69°F)21 mm (0.8 inches)91%high

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