Last updated: August 27, 2025
In September, the average temperature in Santa Cruz, Mexico is a warm 28°C (82°F). Expect minimums around 22°C (71°F) and highs reaching 37°C (99°F). With an average humidity of 75%, you'll likely experience a bit of stickiness in the air. Be prepared for some rain, as 97 mm (3.8 in) of precipitation is expected over 17 days.
In September in Santa Cruz, the average temperature is 28°C (82°F), with maximums reaching 37°C (99°F) and minimums dropping to as low as 22°C (71°F). This warm climate makes Santa Cruz an ideal destination for travelers seeking sunny adventures and outdoor activities.
In Santa Cruz in September, the precipitation amount is 97 mm (3.8 in) spread over 17 days.
In Santa Cruz in September humidity is 75%. With an average temperature of 28°C (82°F), this humidity feels like a warm, enveloping embrace that can quickly leave travelers feeling sticky and fatigued. It can make outdoor activities challenging, as sweat doesn’t evaporate easily, leading to a constant struggle between comfort and the desire to explore.
In Santa Cruz in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Santa Cruz.
UV Risk Categories
Weather in Santa Cruz varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santa Cruz, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 23°C (74°F) | 23 mm (0.9 inches) | 79% | very high |
| February Weather | 25°C (77°F) | 8 mm (0.3 inches) | 80% | very high |
| March Weather | 27°C (80°F) | 6 mm (0.2 inches) | 76% | extreme |
| April Weather | 29°C (84°F) | 17 mm (0.7 inches) | 74% | extreme |
| May Weather | 29°C (85°F) | 40 mm (1.6 inches) | 72% | extreme |
| June Weather | 28°C (83°F) | 158 mm (6.2 inches) | 73% | extreme |
| July Weather | 28°C (83°F) | 66 mm (2.6 inches) | 77% | extreme |
| August Weather | 28°C (83°F) | 86 mm (3.4 inches) | 77% | extreme |
| September Weather | 28°C (82°F) | 97 mm (3.8 inches) | 75% | extreme |
| October Weather | 27°C (81°F) | 105 mm (4.1 inches) | 76% | extreme |
| November Weather | 25°C (77°F) | 33 mm (1.3 inches) | 81% | very high |
| December Weather | 24°C (75°F) | 20 mm (0.8 inches) | 84% | high |