Last updated: August 27, 2025
In Santa Cruz, Mexico, the average temperature in September hovers around 22°C (72°F). Daily highs can reach up to 35°C (94°F), while the cooler nights may dip to a minimum of 9°C (49°F). Precipitation during this month is typically 36 mm (1.4 in) spread over 6 days, contributing to an average humidity of 72%.
In September in Santa Cruz, the average temperature is 22°C (72°F), with maximums reaching up to 35°C (94°F) and minimums dropping as low as 9°C (49°F). This makes it an ideal time for travelers who enjoy mild weather with the option for warmer days.
In Santa Cruz in September, the total precipitation amount is 36 mm (1.4 in), which falls over the course of 6 days.
In Santa Cruz in September humidity is 72%. With an average temperature of 22°C (72°F), this humidity feels like you are stepping into a warm, embracing blanket, making traveling feel sweaty and slightly stifling, but the balmy weather is also quite perfect for exploring local attractions.
In Santa Cruz in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 | 8°C (46°F) | 30 mm (1.2 inches) | 74% | moderate |
| February Weather | 9°C (48°F) | 35 mm (1.4 inches) | 71% | very high |
| March Weather | 12°C (54°F) | 23 mm (0.9 inches) | 60% | very high |
| April Weather | 17°C (62°F) | 4 mm (0.1 inches) | 43% | extreme |
| May Weather | 20°C (69°F) | 4 mm (0.2 inches) | 32% | extreme |
| June Weather | 26°C (79°F) | 9 mm (0.4 inches) | 28% | extreme |
| July Weather | 24°C (76°F) | 137 mm (5.4 inches) | 38% | extreme |
| August Weather | 24°C (75°F) | 96 mm (3.8 inches) | 60% | extreme |
| September Weather | 22°C (72°F) | 36 mm (1.4 inches) | 72% | extreme |
| October Weather | 18°C (65°F) | 17 mm (0.7 inches) | 66% | very high |
| November Weather | 14°C (57°F) | 33 mm (1.3 inches) | 74% | high |
| December Weather | 8°C (47°F) | 25 mm (1.0 inches) | 81% | moderate |