Last updated: March 2, 2024
The weather in Primero de Mayo, Mexico, during September is characterized by an average temperature of 28°C (83°F). Highs can soar to 39°C (103°F), while lows may dip to 19°C (66°F). Typically, the humidity level in Primero de Mayo throughout September hovers around 77%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Primero de Mayo averages 97 mm (3.8 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 12 hours 16 minutes of daylight, with the sun shining for approximately 9 hours 24 minutes each day. Additionally, there is a 72% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In September, the UV Index in Primero de Mayo reaches a maximum of 11, 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 | 0 | 1 | 2 | 4 | 7 | 9 | 11 | 11 | 10 | 7 | 4 | 2 | 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 | ||||