Last updated: August 27, 2025
In San Miguel el Alto, Mexico, the average temperature in September is a pleasant 20°C (67°F), making it an ideal time to explore. Temperatures can dip to a cool 11°C (52°F) at night, while daytime highs can reach a warm 29°C (85°F). However, be prepared for some rain, as 182 mm (7.2 in) of precipitation falls over approximately 19 days, contributing to an average humidity of 84%. Plan accordingly to make the most of your visit!
In September in San Miguel el Alto, the average temperature is 20°C (67°F), with maximums reaching up to 29°C (85°F) and minimums dropping as low as 11°C (52°F). This makes it an ideal time for travelers to enjoy pleasant weather and explore outdoor activities.
In San Miguel el Alto in September, the precipitation amount is 182 mm (7.2 in) over a period of 19 days.
In San Miguel el Alto in September humidity is 84%. With an average temperature of 20°C (67°F), this humidity feels like walking through a warm, thick blanket that wraps around you, making travel feel heavy and sticky while also creating a sensation of warmth that can lead to exhaustion if you're not careful.
In San Miguel el Alto in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Miguel el Alto.
UV Risk Categories
Weather in San Miguel el Alto varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Miguel el Alto, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 15°C (60°F) | 11 mm (0.4 inches) | 64% | very high |
| February Weather | 17°C (64°F) | 11 mm (0.4 inches) | 57% | extreme |
| March Weather | 21°C (69°F) | 4 mm (0.2 inches) | 46% | extreme |
| April Weather | 22°C (72°F) | 2 mm (0.1 inches) | 42% | extreme |
| May Weather | 24°C (75°F) | 26 mm (1.0 inches) | 51% | extreme |
| June Weather | 22°C (73°F) | 129 mm (5.1 inches) | 74% | extreme |
| July Weather | 20°C (68°F) | 205 mm (8.1 inches) | 79% | extreme |
| August Weather | 20°C (68°F) | 159 mm (6.3 inches) | 81% | extreme |
| September Weather | 20°C (67°F) | 182 mm (7.2 inches) | 84% | extreme |
| October Weather | 19°C (67°F) | 67 mm (2.6 inches) | 75% | extreme |
| November Weather | 17°C (63°F) | 18 mm (0.7 inches) | 71% | very high |
| December Weather | 15°C (60°F) | 7 mm (0.3 inches) | 74% | very high |