Last updated: August 27, 2025
In September, the average temperature in San Juan Coyula, Mexico is a pleasant 21°C (69°F). Visitors can expect a minimum of 14°C (57°F) and a maximum of 30°C (87°F), creating a comfortable range for outdoor activities. However, with an average humidity of 84% and precipitation amounting to 264 mm (10.4 in) spread over 25 days, it's wise to prepare for some wet weather.
In September in San Juan Coyula, the average temperature is 21°C (69°F). Maximum temperatures can reach 30°C (87°F), while the minimum can drop to as low as 14°C (57°F). This moderate climate makes it an ideal time for traveling and exploring all that San Juan Coyula has to offer.
In San Juan Coyula in September, the total precipitation amount reaches 264 mm (10.4 in) over the course of 25 days.
In San Juan Coyula in September, humidity is 84%. With an average temperature of 21°C (69°F), this humidity feels like a thick blanket enveloping you, making even the simplest outdoor activities feel exhausting and sticky, which can be quite challenging for traveling.
In San Juan Coyula in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Juan Coyula, you can check here.
UV Risk Categories
Weather in San Juan Coyula varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Juan Coyula, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 16°C (62°F) | 29 mm (1.2 inches) | 84% | very high |
| February Weather | 18°C (65°F) | 24 mm (1.0 inches) | 80% | extreme |
| March Weather | 20°C (67°F) | 28 mm (1.1 inches) | 73% | extreme |
| April Weather | 22°C (71°F) | 43 mm (1.7 inches) | 67% | extreme |
| May Weather | 22°C (73°F) | 80 mm (3.1 inches) | 72% | extreme |
| June Weather | 21°C (70°F) | 230 mm (9.1 inches) | 73% | extreme |
| July Weather | 21°C (69°F) | 128 mm (5.0 inches) | 76% | extreme |
| August Weather | 21°C (70°F) | 178 mm (7.0 inches) | 80% | extreme |
| September Weather | 21°C (69°F) | 264 mm (10.4 inches) | 84% | extreme |
| October Weather | 20°C (68°F) | 175 mm (6.9 inches) | 89% | extreme |
| November Weather | 18°C (64°F) | 63 mm (2.5 inches) | 88% | very high |
| December Weather | 17°C (62°F) | 22 mm (0.9 inches) | 88% | very high |