Last updated: August 27, 2025
In Colonia San Luis, Mexico, the average temperature in September reaches a warm 27°C (81°F). Expect minimums around 22°C (71°F) and peaks soaring to 37°C (99°F). With an average humidity of 84%, be prepared for the tropical feel. Rain is quite common, with approximately 167 mm (6.6 in) falling over 20 days during the month.
In September in Colonia San Luis, the average temperature is 27°C (81°F), with maximums reaching 37°C (99°F) and minimums dropping to as low as 22°C (71°F). This warm climate makes it an ideal destination for sun-seekers and outdoor enthusiasts alike.
In Colonia San Luis, in September, the precipitation amount is 167 mm (6.6 in) over a period of 20 days.
In Colonia 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 Colonia 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 Colonia San Luis.
UV Risk Categories
Weather in Colonia San Luis varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Colonia San Luis, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 24°C (75°F) | 4 mm (0.2 inches) | 84% | very high |
| February Weather | 25°C (77°F) | 8 mm (0.3 inches) | 80% | extreme |
| March Weather | 26°C (79°F) | 3 mm (0.1 inches) | 73% | extreme |
| April Weather | 28°C (82°F) | 13 mm (0.5 inches) | 67% | extreme |
| May Weather | 28°C (84°F) | 60 mm (2.4 inches) | 72% | extreme |
| June Weather | 27°C (81°F) | 291 mm (11.4 inches) | 73% | extreme |
| July Weather | 28°C (83°F) | 77 mm (3.0 inches) | 76% | extreme |
| August Weather | 28°C (82°F) | 169 mm (6.7 inches) | 80% | extreme |
| September Weather | 27°C (81°F) | 167 mm (6.6 inches) | 84% | extreme |
| October Weather | 27°C (80°F) | 108 mm (4.3 inches) | 89% | extreme |
| November Weather | 25°C (78°F) | 7 mm (0.3 inches) | 88% | very high |
| December Weather | 24°C (75°F) | 8 mm (0.3 inches) | 88% | very high |