Last updated: August 27, 2025
In September, the average temperature in San Quintin, Mexico hovers around 24°C (76°F), making it a pleasant time to visit. Expect a minimum dip to 19°C (66°F) and highs reaching up to 32°C (90°F). Rainfall is quite frequent, with a total precipitation of 331 mm (13.0 in) spread over 28 days, creating a humid environment with an average humidity of 77%. Make sure to pack accordingly for your stay!
In September in San Quintin, the average temperature is 24°C (76°F). Maximums can reach 32°C (90°F) and minimums can be as low as 19°C (66°F). This pleasant weather makes it an ideal time for outdoor activities and exploring the local attractions.
In San Quintin in September, the total precipitation amount is 331 mm (13.0 in) over a span of 28 days.
In San Quintin in September humidity is 77%. With an average temperature of 24°C (76°F), this humidity feels like traveling through a warm, heavy blanket that clings to your skin, making each step feel like a gentle workout as the air wraps around you, urging you to move at a leisurely pace and seek out shade whenever possible.
In San Quintin 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 Quintin.
UV Risk Categories
Weather in San Quintin varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Quintin, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 20°C (68°F) | 78 mm (3.1 inches) | 84% | very high |
| February Weather | 21°C (70°F) | 48 mm (1.9 inches) | 73% | extreme |
| March Weather | 22°C (72°F) | 52 mm (2.0 inches) | 59% | extreme |
| April Weather | 25°C (78°F) | 63 mm (2.5 inches) | 52% | extreme |
| May Weather | 26°C (79°F) | 202 mm (8.0 inches) | 53% | extreme |
| June Weather | 25°C (77°F) | 408 mm (16.1 inches) | 55% | extreme |
| July Weather | 24°C (76°F) | 211 mm (8.3 inches) | 61% | extreme |
| August Weather | 24°C (76°F) | 290 mm (11.4 inches) | 71% | extreme |
| September Weather | 24°C (76°F) | 331 mm (13.0 inches) | 77% | extreme |
| October Weather | 24°C (75°F) | 321 mm (12.6 inches) | 78% | extreme |
| November Weather | 22°C (72°F) | 134 mm (5.3 inches) | 82% | very high |
| December Weather | 20°C (69°F) | 69 mm (2.7 inches) | 86% | very high |