Last updated: August 27, 2025
In September, the average temperature in San Francisco Tlapancingo, Mexico is a pleasant 20°C (68°F). You'll experience a mild range, with minimums dipping to 13°C (56°F) and maximums reaching 28°C (83°F). Be prepared for some rain, as 317 mm (12.5 in) of precipitation falls over approximately 28 days, contributing to a notably high average humidity of 82%.
In September in San Francisco Tlapancingo, the average temperature is 20°C (68°F). The maximum can reach 28°C (83°F) and the minimum can be as low as 13°C (56°F). This pleasant climate makes San Francisco Tlapancingo an ideal destination for travelers seeking comfortable weather and enjoyable outdoor activities.
In San Francisco Tlapancingo in September, the total precipitation amount is 317 mm (12.5 in), accumulated over the course of 28 days.
In San Francisco Tlapancingo in September humidity is 82%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit sluggish but surprisingly refreshing, as long as you take breaks in shaded areas to cool off.
In San Francisco Tlapancingo 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 Tlapancingo, you can check here.
UV Risk Categories
Weather in San Francisco Tlapancingo varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Francisco Tlapancingo, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 18°C (64°F) | 9 mm (0.4 inches) | 65% | very high |
| February Weather | 19°C (66°F) | 2 mm (0.1 inches) | 61% | extreme |
| March Weather | 21°C (69°F) | 11 mm (0.4 inches) | 59% | extreme |
| April Weather | 22°C (71°F) | 23 mm (0.9 inches) | 62% | extreme |
| May Weather | 22°C (72°F) | 86 mm (3.4 inches) | 73% | extreme |
| June Weather | 20°C (69°F) | 228 mm (9.0 inches) | 78% | extreme |
| July Weather | 20°C (68°F) | 195 mm (7.7 inches) | 79% | extreme |
| August Weather | 20°C (68°F) | 272 mm (10.7 inches) | 82% | extreme |
| September Weather | 20°C (68°F) | 317 mm (12.5 inches) | 82% | extreme |
| October Weather | 19°C (67°F) | 146 mm (5.7 inches) | 79% | extreme |
| November Weather | 19°C (66°F) | 24 mm (1.0 inches) | 72% | very high |
| December Weather | 18°C (64°F) | 9 mm (0.3 inches) | 70% | very high |