Last updated: August 27, 2025
In San Pedro Capula, Mexico, the average temperature in September is a comfortable 19°C (66°F). Visitors can expect a range from a cool 7°C (46°F) to a warm 29°C (84°F). However, be prepared for some wet weather, as the area receives about 124 mm (4.9 inches) of precipitation over 20 days. With an average humidity of 84%, it's advisable to pack for both warmth and moisture.
In September in San Pedro Capula, the average temperature is 19°C (66°F). Maximum temperatures can reach 29°C (84°F), while minimums can drop to as low as 7°C (46°F). This pleasant weather makes San Pedro Capula an ideal destination for travelers seeking both warmth and cooler evenings.
In San Pedro Capula, in September, the precipitation amount is 124 mm (4.9 in) over the course of 20 days.
In San Pedro Capula in September, humidity is 84%. With an average temperature of 19°C (66°F), this humidity feels like a warm, sticky embrace that can make traveling uncomfortable and exhausting, as the air clings to your skin, and every step taken feels heavier in the sultry atmosphere.
In San Pedro Capula 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 Pedro Capula, you can check here.
UV Risk Categories
Weather in San Pedro Capula varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Pedro Capula, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 13°C (56°F) | 11 mm (0.4 inches) | 88% | very high |
| February Weather | 16°C (61°F) | 13 mm (0.5 inches) | 86% | extreme |
| March Weather | 18°C (64°F) | 19 mm (0.7 inches) | 83% | extreme |
| April Weather | 20°C (68°F) | 31 mm (1.2 inches) | 80% | extreme |
| May Weather | 21°C (70°F) | 49 mm (1.9 inches) | 82% | extreme |
| June Weather | 20°C (68°F) | 122 mm (4.8 inches) | 79% | extreme |
| July Weather | 19°C (66°F) | 98 mm (3.9 inches) | 72% | extreme |
| August Weather | 19°C (67°F) | 94 mm (3.7 inches) | 74% | extreme |
| September Weather | 19°C (66°F) | 124 mm (4.9 inches) | 84% | extreme |
| October Weather | 17°C (63°F) | 72 mm (2.8 inches) | 92% | extreme |
| November Weather | 15°C (59°F) | 25 mm (1.0 inches) | 91% | very high |
| December Weather | 14°C (57°F) | 7 mm (0.3 inches) | 91% | very high |