Last updated: March 2, 2024
The weather in Santo Tomas, Mexico, during September is characterized by an average temperature of 17°C (63°F). Highs can soar to 28°C (82°F), while lows may dip to 7°C (45°F). Typically, the humidity level in Santo Tomas throughout September hovers around 82%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Santo Tomas averages 76 mm (3.0 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 12 hours 17 minutes of daylight, with the sun shining for approximately 9 hours 56 minutes each day. Additionally, there is a 59% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Santo Tomas reaches a maximum of 12, 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 | 11 | 12 | 11 | 9 | 6 | 3 | 1 | 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 | ||||