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May Weather in Santa Ana, Mexico

Last updated: August 27, 2025

In May, the average temperature in Santa Ana, Mexico is a pleasant 25°C (77°F). Expect a wide range in temperatures, with minimums dropping to 9°C (48°F) and maximums soaring up to 39°C (103°F). You can look forward to a dry month with only 3 mm (0.1 in) of precipitation over 0 days, accompanied by an average humidity of 32%.

May Temperature in Santa Ana

In May in Santa Ana, the average temperature is 25°C (77°F). The maximum can reach 39°C (103°F), and the minimum can be as low as 9°C (48°F). Visitors should prepare for warm days and cool evenings while enjoying the diverse climate offerings.

May Weather in Santa Ana: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Santa Ana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Ana, May typically has an average temperature of 25°C (77°F), with highs reaching up to 39°C (103°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec555663717787858481746555
Data source: Temperature data for Santa Ana 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 Santa Ana

In Santa Ana in May, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.

May Precipitation Trends in Santa Ana

The chart displays monthly precipitation patterns in Santa Ana, 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 Santa Ana, May typically receives around 3 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec323122436855949133325
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Santa Ana

In Santa Ana in May, humidity is 32%. With an average temperature of 25°C (77°F), this humidity feels like a pleasantly mild embrace, making it ideal for exploring the area comfortably without feeling overheated or sticky.

May Average Humidity in Santa Ana

This chart illustrates the average monthly humidity levels in Santa Ana, 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 Santa Ana is approximately 32%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%71%60%43%32%28%38%60%72%66%74%81%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Santa Ana

In Santa Ana 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 Santa Ana.

Maximum UV Index Levels in Santa Ana for May

The chart shows the monthly maximum UV Index (UVI) for Santa Ana 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 Santa Ana typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5710121212121211965
Data source: Santa Ana 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 Santa Ana Compares to Other Months

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

This table compares monthly weather conditions in Santa Ana, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)32 mm (1.3 inches)74%moderate
February Weather13°C (57°F)31 mm (1.2 inches)71%high
March Weather17°C (63°F)22 mm (0.9 inches)60%very high
April Weather22°C (71°F)4 mm (0.2 inches)43%extreme
May Weather25°C (77°F)3 mm (0.1 inches)32%extreme
June Weather30°C (87°F)6 mm (0.2 inches)28%extreme
July Weather29°C (85°F)85 mm (3.4 inches)38%extreme
August Weather29°C (85°F)59 mm (2.3 inches)60%extreme
September Weather27°C (81°F)49 mm (1.9 inches)72%extreme
October Weather23°C (74°F)13 mm (0.5 inches)66%very high
November Weather19°C (66°F)33 mm (1.3 inches)74%high
December Weather13°C (56°F)25 mm (1.0 inches)81%moderate

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