Last updated: March 2, 2024
The weather in San Bartolome, Mexico, during September is characterized by an average temperature of 15°C (60°F). Highs can soar to 23°C (74°F), while lows may dip to 7°C (46°F). Typically, the humidity level in San Bartolome throughout September hovers around 82%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, San Bartolome averages 237 mm (9.3 inches) of rainfall, typically over the course of 24 rainy days. The month enjoys an average of 12 hours 12 minutes of daylight, with the sun shining for approximately 9 hours 25 minutes each day. Additionally, there is a 16% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in San Bartolome reaches a maximum of 15, 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 | 5 | 9 | 13 | 15 | 14 | 12 | 8 | 4 | 2 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 30 min | 45 min | ||||||