September Weather in Santa Cruz, Mexico

Last updated: August 27, 2025

In September, the average temperature in Santa Cruz, Mexico is a pleasant 22°C (72°F). Expect a range between a cool 13°C (56°F) and a warm 35°C (95°F), making it perfect for various outdoor activities. However, be prepared for 11 days of rain, totaling approximately 52 mm (2.0 in) of precipitation. With an average humidity of 81%, it’s advisable to stay hydrated while enjoying the beauty of the season!

September Temperature in Santa Cruz

In September in Santa Cruz, the average temperature is 22°C (72°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 13°C (56°F). This makes it a great time to explore Santa Cruz, as the warm days and cooler nights provide perfect conditions for outdoor activities.

September Weather in Santa Cruz: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santa Cruz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Cruz, September typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec576266717474737472696358
Data source: Temperature data for Santa Cruz generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Santa Cruz

In Santa Cruz in September, the total precipitation amount is 52 mm (2.0 in), occurring over the course of 11 days.

September Precipitation Trends in Santa Cruz

The chart displays monthly precipitation patterns in Santa Cruz, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Santa Cruz, September typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec192027245442452552502119
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santa Cruz

In Santa Cruz in September, humidity is 81%. With an average temperature of 22°C (72°F), this humidity feels like a warm, enveloping blanket, making traveling feel both lush and a bit stifling, as the air clings to your skin and every step is accompanied by a gentle sheen of moisture.

September Average Humidity in Santa Cruz

This chart illustrates the average monthly humidity levels in Santa Cruz, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Santa Cruz is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%69%65%64%75%78%67%64%82%86%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santa Cruz

In Santa Cruz 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 Santa Cruz.

Maximum UV Index Levels in Santa Cruz for September

The chart shows the monthly maximum UV Index (UVI) for Santa Cruz in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Santa Cruz typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131414131414131297
Data source: Santa Cruz September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Santa Cruz Compares to Other Months

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.

This table compares monthly weather conditions in Santa Cruz, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (57°F)19 mm (0.8 inches)75%very high
February Weather17°C (62°F)20 mm (0.8 inches)69%very high
March Weather19°C (66°F)27 mm (1.1 inches)65%extreme
April Weather22°C (71°F)24 mm (1.0 inches)64%extreme
May Weather23°C (74°F)54 mm (2.1 inches)75%extreme
June Weather23°C (74°F)42 mm (1.7 inches)78%extreme
July Weather23°C (74°F)45 mm (1.8 inches)67%extreme
August Weather23°C (74°F)25 mm (1.0 inches)64%extreme
September Weather22°C (72°F)52 mm (2.0 inches)81%extreme
October Weather20°C (69°F)50 mm (2.0 inches)85%extreme
November Weather17°C (63°F)21 mm (0.8 inches)87%very high
December Weather15°C (59°F)19 mm (0.8 inches)87%high

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