Last updated: March 2, 2024
The weather in Santo Tomas, Mexico, during September is characterized by an average temperature of 23°C (73°F). Highs can soar to 30°C (86°F), while lows may dip to 18°C (64°F). Typically, the humidity level in Santo Tomas throughout September hovers around 77%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Santo Tomas averages 285 mm (11.2 inches) of rainfall, typically over the course of 28 rainy days. The month enjoys an average of 12 hours 11 minutes of daylight, with the sun shining for approximately 10 hours 16 minutes each day. Additionally, there is a 22% 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 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 | 10 | 13 | 14 | 13 | 10 | 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 | ||||