Last updated: August 27, 2025
In September, the average temperature in Valle de Allende, Mexico is a pleasant 22°C (73°F). While you can enjoy the warmth, be prepared for a minimum of 12°C (54°F) and a maximum reaching up to 35°C (96°F). Expect around 100 mm (3.9 in) of rain over 12 days, contributing to a notably high average humidity of 86%. Pack your umbrella and stay cool!
In September in Valle de Allende, the average temperature is 22°C (73°F). Maximum temperatures can reach 35°C (96°F), while minimum temperatures can drop to as low as 12°C (54°F). This makes Valle de Allende an ideal destination for travelers seeking warm weather with comfortable nights.
In Valle de Allende in September, the precipitation amount is 100 mm (3.9 in) over the course of 12 days.
In Valle de Allende in September, humidity is 86%. With an average temperature of 22°C (73°F), this humidity feels like stepping into a warm, damp embrace that can quickly lead to discomfort while traveling, making you feel sticky and clammy, and often requiring frequent breaks to cool down.
In Valle de Allende in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Valle de Allende.
UV Risk Categories
Weather in Valle de Allende varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Valle de Allende, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (54°F) | 5 mm (0.2 inches) | 75% | high |
| February Weather | 15°C (59°F) | 5 mm (0.2 inches) | 65% | very high |
| March Weather | 18°C (65°F) | 5 mm (0.2 inches) | 58% | extreme |
| April Weather | 22°C (72°F) | 3 mm (0.1 inches) | 48% | extreme |
| May Weather | 25°C (78°F) | 6 mm (0.2 inches) | 48% | extreme |
| June Weather | 28°C (82°F) | 24 mm (1.0 inches) | 54% | extreme |
| July Weather | 25°C (78°F) | 62 mm (2.5 inches) | 72% | extreme |
| August Weather | 25°C (78°F) | 56 mm (2.2 inches) | 77% | extreme |
| September Weather | 22°C (73°F) | 100 mm (3.9 inches) | 86% | extreme |
| October Weather | 20°C (69°F) | 31 mm (1.2 inches) | 82% | very high |
| November Weather | 16°C (62°F) | 15 mm (0.6 inches) | 85% | very high |
| December Weather | 12°C (54°F) | 17 mm (0.7 inches) | 87% | high |