Last updated: March 2, 2024
The weather in Puerto Vallarta, Mexico, during September is characterized by an average temperature of 24°C (76°F). Highs can soar to 30°C (85°F), while lows may dip to 21°C (71°F). Typically, the humidity level in Puerto Vallarta throughout September hovers around 78%.
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Average temperature
Maximum temperature
Humidity
In September, Puerto Vallarta averages 360 mm (14.2 inches) of rainfall, typically over the course of 29 rainy days. The month enjoys an average of 12 hours 13 minutes of daylight, with the sun shining for approximately 8 hours 33 minutes each day. Additionally, there is a 19% probability of sunny days during this period.
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Chance of sun
In September, the UV Index in Puerto Vallarta reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 14:00 and 16:00, 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 | 0 | 1 | 1 | 3 | 6 | 10 | 12 | 13 | 12 | 9 | 6 | 3 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||