Last updated: August 26, 2025
In San Ignacio, Mexico, the average temperature in September hovers around 26°C (79°F), with highs reaching up to 39°C (102°F) and lows dipping to 12°C (53°F). Expect an average precipitation amount of 58 mm (2.3 in) spread over 6 days, contributing to an average humidity of 72%. Stay prepared for a mix of warm days and the occasional shower!
In September in San Ignacio, the average temperature is 26°C (79°F). Maximum temperatures can reach up to 39°C (102°F), while minimum temperatures can drop as low as 12°C (53°F). Be prepared for a warm climate with occasional cool evenings when traveling to San Ignacio during this month.
In San Ignacio in September, the precipitation amount is 58 mm (2.3 in) over the course of 6 days.
In San Ignacio in September, humidity is 72%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities feel a bit more strenuous but also adding a tropical charm to your travels.
In San Ignacio in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Ignacio.
UV Risk Categories
Weather in San Ignacio varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Ignacio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (53°F) | 42 mm (1.6 inches) | 74% | moderate |
| February Weather | 12°C (54°F) | 40 mm (1.6 inches) | 71% | high |
| March Weather | 16°C (60°F) | 27 mm (1.1 inches) | 60% | very high |
| April Weather | 21°C (69°F) | 3 mm (0.1 inches) | 43% | extreme |
| May Weather | 24°C (75°F) | 3 mm (0.1 inches) | 32% | extreme |
| June Weather | 29°C (85°F) | 8 mm (0.3 inches) | 28% | extreme |
| July Weather | 28°C (83°F) | 95 mm (3.7 inches) | 38% | extreme |
| August Weather | 28°C (83°F) | 63 mm (2.5 inches) | 60% | extreme |
| September Weather | 26°C (79°F) | 58 mm (2.3 inches) | 72% | extreme |
| October Weather | 22°C (72°F) | 14 mm (0.6 inches) | 66% | very high |
| November Weather | 17°C (64°F) | 42 mm (1.7 inches) | 74% | high |
| December Weather | 12°C (54°F) | 31 mm (1.2 inches) | 81% | moderate |