Last updated: August 27, 2025
In May, the average temperature in San Martin, Mexico is a pleasant 20°C (68°F). Expect a minimum chill of 6°C (43°F) and a warm maximum of 33°C (92°F). During this month, you'll encounter around 19 mm (0.7 in) of precipitation, likely spread over 5 days. With an average humidity level of 55%, it’s a great time to enjoy the balance of warmth and coolness!
In May in San Martin, the average temperature is 20°C (68°F), with maximums reaching 33°C (92°F) and minimums dropping as low as 6°C (43°F). This makes it a great time for travelers to enjoy a variety of outdoor activities, from sunbathing to exploring the local scenery, while being prepared for cooler evenings.
In San Martin in May, the total precipitation amount is 19 mm (0.7 in) spread over the course of 5 days.
In San Martin in May humidity is 55%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making it comfortable for traveling but slightly sticky, encouraging leisurely strolls and relaxed outdoor activities.
In San Martin 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 San Martin.
UV Risk Categories
Weather in San Martin varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in San Martin, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 10°C (51°F) | 15 mm (0.6 inches) | 71% | very high |
| February Weather | 13°C (55°F) | 11 mm (0.4 inches) | 64% | extreme |
| March Weather | 16°C (61°F) | 11 mm (0.4 inches) | 49% | extreme |
| April Weather | 18°C (64°F) | 4 mm (0.2 inches) | 47% | extreme |
| May Weather | 20°C (68°F) | 19 mm (0.7 inches) | 55% | extreme |
| June Weather | 21°C (70°F) | 71 mm (2.8 inches) | 77% | extreme |
| July Weather | 18°C (65°F) | 180 mm (7.1 inches) | 82% | extreme |
| August Weather | 19°C (66°F) | 86 mm (3.4 inches) | 83% | extreme |
| September Weather | 17°C (62°F) | 149 mm (5.9 inches) | 86% | extreme |
| October Weather | 16°C (61°F) | 48 mm (1.9 inches) | 83% | extreme |
| November Weather | 13°C (56°F) | 17 mm (0.7 inches) | 80% | very high |
| December Weather | 11°C (52°F) | 9 mm (0.4 inches) | 83% | very high |