Last updated: August 27, 2025
In May, the average temperature in Union de San Antonio, Mexico hovers around 24°C (75°F). Expect a comfortable range with minimums dipping to 12°C (53°F) and maximums soaring up to 37°C (99°F). While you enjoy the warmth, be prepared for some light showers, as precipitation averages 29 mm (1.2 in) over the course of about 5 days. The air carries a 67% humidity, adding to the tropical feel of the season.
In May in Union de San Antonio, the average temperature is 24°C (75°F). Maximum temperatures can reach 37°C (99°F), while the minimum can drop to as low as 12°C (53°F). This makes Union de San Antonio an ideal destination for travelers looking to enjoy warm weather with a pleasant range of temperatures.
In Union de San Antonio in May, the precipitation amount is 29 mm (1.2 in) over a period of 5 days.
In Union de San Antonio in May humidity is 67%. With an average temperature of 24°C (75°F), this humidity feels like a warm and sticky embrace, making traveling a bit uncomfortable as you find yourself seeking shade and refreshing drinks more often.
In Union de San Antonio in May, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Union de San Antonio.
UV Risk Categories
Weather in Union de San Antonio varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Union de San Antonio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 15°C (60°F) | 7 mm (0.3 inches) | 74% | very high |
| February Weather | 18°C (64°F) | 9 mm (0.4 inches) | 65% | extreme |
| March Weather | 21°C (70°F) | 4 mm (0.2 inches) | 58% | extreme |
| April Weather | 23°C (73°F) | 1 mm (0.1 inches) | 58% | extreme |
| May Weather | 24°C (75°F) | 29 mm (1.2 inches) | 67% | extreme |
| June Weather | 23°C (73°F) | 152 mm (6.0 inches) | 76% | extreme |
| July Weather | 20°C (69°F) | 173 mm (6.8 inches) | 67% | extreme |
| August Weather | 21°C (69°F) | 137 mm (5.4 inches) | 68% | extreme |
| September Weather | 20°C (68°F) | 139 mm (5.5 inches) | 81% | extreme |
| October Weather | 20°C (68°F) | 48 mm (1.9 inches) | 83% | extreme |
| November Weather | 18°C (64°F) | 14 mm (0.6 inches) | 84% | very high |
| December Weather | 15°C (60°F) | 6 mm (0.2 inches) | 81% | very high |