Last updated: August 26, 2025
In September, the average temperature in San Francisco Cahuacua, Mexico is a comfortable 18°C (64°F), with minimums dipping to 10°C (51°F) and maximums reaching up to 28°C (83°F). Expect considerable rainfall, with 262 mm (10.3 in) of precipitation spread across 24 days. Humidity is notably high, averaging around 84%, making it essential to stay hydrated and prepared for the wet conditions.
In September in San Francisco Cahuacua, the average temperature is 18°C (64°F). The maximum can reach 28°C (83°F) and the minimum can be as low as 10°C (51°F). This makes it an ideal time for travelers to enjoy comfortable weather while exploring the sights and attractions.
In San Francisco Cahuacua in September, the precipitation amount is 262 mm (10.3 in) over the course of 24 days.
In San Francisco Cahuacua in September humidity is 84%. With an average temperature of 18°C (64°F), this humidity feels like there's a heavy blanket wrapping around you, making travel feel a bit sticky and muggy, potentially leading to fatigue if you're not prepared.
In San Francisco Cahuacua 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 Francisco Cahuacua, you can check here.
UV Risk Categories
Weather in San Francisco Cahuacua varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Francisco Cahuacua, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 15°C (60°F) | 4 mm (0.1 inches) | 84% | extreme |
| February Weather | 17°C (63°F) | 2 mm (0.1 inches) | 80% | extreme |
| March Weather | 18°C (65°F) | 13 mm (0.5 inches) | 73% | extreme |
| April Weather | 19°C (67°F) | 25 mm (1.0 inches) | 67% | extreme |
| May Weather | 20°C (68°F) | 62 mm (2.4 inches) | 72% | extreme |
| June Weather | 18°C (65°F) | 210 mm (8.3 inches) | 73% | extreme |
| July Weather | 18°C (64°F) | 171 mm (6.7 inches) | 76% | extreme |
| August Weather | 18°C (64°F) | 241 mm (9.5 inches) | 80% | extreme |
| September Weather | 18°C (64°F) | 262 mm (10.3 inches) | 84% | extreme |
| October Weather | 17°C (64°F) | 122 mm (4.8 inches) | 89% | extreme |
| November Weather | 16°C (62°F) | 15 mm (0.6 inches) | 88% | extreme |
| December Weather | 16°C (60°F) | 8 mm (0.3 inches) | 88% | very high |