Last updated: August 27, 2025
In Plan de San Luis, Mexico, the average temperature in September reaches a warm 27°C (81°F), with minimums dipping to 22°C (71°F) and maximums soaring up to 35°C (96°F). Prepare for a humid experience, as the average humidity sits at a muggy 84%. Additionally, expect 286 mm (11.3 in) of precipitation spread over 23 days, making it a month rich in both warmth and moisture.
In September in Plan de San Luis, the average temperature is 27°C (81°F). The maximum can reach 35°C (96°F), while the minimum can drop to 22°C (71°F). This warm and pleasant climate makes it an ideal destination for travelers seeking sun and comfort.
In Plan de San Luis in September, the precipitation amount is 286 mm (11.3 in) over the course of 23 days.
In Plan de San Luis in September humidity is 84%. With an average temperature of 27°C (81°F), this humidity feels like walking through a warm, moist blanket, making travel uncomfortable and sticky, as every step seems to weigh you down with the heavy air.
In Plan de San Luis 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 Plan de San Luis.
UV Risk Categories
Weather in Plan de San Luis varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Plan de San Luis, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 22°C (73°F) | 50 mm (2.0 inches) | 84% | very high |
| February Weather | 24°C (75°F) | 39 mm (1.5 inches) | 80% | extreme |
| March Weather | 26°C (78°F) | 30 mm (1.2 inches) | 73% | extreme |
| April Weather | 28°C (82°F) | 36 mm (1.4 inches) | 67% | extreme |
| May Weather | 29°C (85°F) | 68 mm (2.7 inches) | 72% | extreme |
| June Weather | 28°C (82°F) | 274 mm (10.8 inches) | 73% | extreme |
| July Weather | 27°C (81°F) | 253 mm (10.0 inches) | 76% | extreme |
| August Weather | 27°C (81°F) | 310 mm (12.2 inches) | 80% | extreme |
| September Weather | 27°C (81°F) | 286 mm (11.3 inches) | 84% | extreme |
| October Weather | 26°C (79°F) | 272 mm (10.7 inches) | 89% | extreme |
| November Weather | 24°C (75°F) | 87 mm (3.4 inches) | 88% | very high |
| December Weather | 23°C (73°F) | 46 mm (1.8 inches) | 88% | very high |