Last updated: March 2, 2024
The weather in San Juan Vallarta, Mexico, during May is characterized by an average temperature of 23°C (74°F). Highs can soar to 33°C (92°F), while lows may dip to 15°C (59°F). Typically, the humidity level in San Juan Vallarta throughout May hovers around 77%.
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Average temperature
Maximum temperature
Humidity
In May, San Juan Vallarta averages 131 mm (5.2 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 13 hours 0 minutes of daylight, with the sun shining for approximately 10 hours 42 minutes each day. Additionally, there is a 44% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In May, the UV Index in San Juan Vallarta reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 3 | 6 | 9 | 12 | 14 | 14 | 11 | 8 | 5 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 30 min | 45 min | |||||