Last updated: March 2, 2024
The weather in San Andres, Mexico, during September is characterized by an average temperature of 21°C (70°F). Highs can soar to 29°C (84°F), while lows may dip to 16°C (60°F). Typically, the humidity level in San Andres throughout September hovers around 82%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, San Andres averages 214 mm (8.4 inches) of rainfall, typically over the course of 26 rainy days. The month enjoys an average of 12 hours 12 minutes of daylight, with the sun shining for approximately 9 hours 20 minutes each day. Additionally, there is a 15% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in San Andres 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 | 0 | 1 | 2 | 5 | 8 | 12 | 14 | 14 | 12 | 8 | 5 | 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 | ||||||