Last updated: March 2, 2024
The weather in El Letrero, Mexico, during September is characterized by an average temperature of 26°C (80°F). Highs can soar to 34°C (94°F), while lows may dip to 21°C (69°F). Typically, the humidity level in El Letrero throughout September hovers around 85%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, El Letrero averages 173 mm (6.8 inches) of rainfall, typically over the course of 25 rainy days. The month enjoys an average of 12 hours 12 minutes of daylight, with the sun shining for approximately 8 hours 35 minutes each day. Additionally, there is a 18% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In September, the UV Index in El Letrero reaches a maximum of 14, 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 | 2 | 4 | 7 | 11 | 13 | 14 | 12 | 9 | 5 | 2 | 1 |
| Exposure | Low | Moderate | High | Extreme | VeryHigh | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 10 min | 15 min | 30 min | 45 min | ||||||