Last updated: August 27, 2025
In San Juan Jaltepec, Mexico, the average temperature in September hovers around 24°C (75°F). Expect a minimum of 18°C (65°F) and a maximum that can soar up to 35°C (95°F). With 348 mm (13.7 in) of precipitation over 26 days, and an average humidity of 84%, be prepared for a blend of warmth and moisture throughout the month.
In September in San Juan Jaltepec, the average temperature is 24°C (75°F). Maximum temperatures can reach 35°C (95°F), while minimum temperatures can drop to as low as 18°C (65°F). This pleasant climate makes San Juan Jaltepec an ideal destination for travelers seeking both warmth and comfort.
In San Juan Jaltepec in September, the total precipitation amount is 348 mm (13.7 in) spread over a duration of 26 days.
In San Juan Jaltepec in September humidity is 84%. With an average temperature of 24°C (75°F), this humidity feels like a warm, tropical embrace, making it essential for travelers to stay hydrated and plan outdoor activities for early mornings or late afternoons when the heat is more bearable.
In San Juan Jaltepec in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Juan Jaltepec.
UV Risk Categories
Weather in San Juan Jaltepec varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Juan Jaltepec, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 19°C (66°F) | 97 mm (3.8 inches) | 84% | very high |
| February Weather | 20°C (68°F) | 86 mm (3.4 inches) | 80% | extreme |
| March Weather | 22°C (71°F) | 61 mm (2.4 inches) | 73% | extreme |
| April Weather | 24°C (76°F) | 52 mm (2.0 inches) | 67% | extreme |
| May Weather | 26°C (78°F) | 103 mm (4.0 inches) | 72% | extreme |
| June Weather | 24°C (76°F) | 397 mm (15.6 inches) | 73% | extreme |
| July Weather | 24°C (75°F) | 190 mm (7.5 inches) | 76% | extreme |
| August Weather | 24°C (75°F) | 363 mm (14.3 inches) | 80% | extreme |
| September Weather | 24°C (75°F) | 348 mm (13.7 inches) | 84% | extreme |
| October Weather | 23°C (73°F) | 344 mm (13.6 inches) | 89% | extreme |
| November Weather | 20°C (69°F) | 184 mm (7.3 inches) | 88% | very high |
| December Weather | 19°C (66°F) | 90 mm (3.6 inches) | 88% | very high |