September Weather in Santa Cruz, Mexico

Last updated: August 27, 2025

In September, the average temperature in Santa Cruz, Mexico hovers around 28°C (83°F), with a comfortable minimum of 23°C (73°F) and the potential to soar to a sizzling 38°C (100°F). Expect a significant amount of rainfall, totaling 207 mm (8.1 in) spread across 24 days, coupled with an average humidity level of 87%—perfect for those who enjoy a tropical ambiance!

September Temperature in Santa Cruz

In September in Santa Cruz, the average temperature is 28°C (83°F). Maximum temperatures can reach 38°C (100°F), while the minimum can drop to as low as 23°C (73°F). This warm climate makes Santa Cruz an excellent destination for travelers seeking sun and 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 28°C (83°F), with highs reaching up to 38°C (100°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec737679838583848482807674
Data source: Temperature data for Santa Cruz generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
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 207 mm (8.1 in) spread over a period of 24 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 207 mm (8.1 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec104435452772357712820726218992
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Santa Cruz

In Santa Cruz in September humidity is 87%. With an average temperature of 28°C (83°F), this humidity feels like you're enveloped in a warm, sticky blanket, making outdoor activities slightly uncomfortable and travel plans require frequent breaks for hydration and respite from the heat.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%76%66%59%64%69%82%87%87%88%88%88%
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.
JanFebMarAprMayJunJulAugSepOctNovDec911131312131312131198
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 Weather23°C (73°F)104 mm (4.1 inches)83%very high
February Weather24°C (76°F)43 mm (1.7 inches)76%extreme
March Weather26°C (79°F)54 mm (2.1 inches)66%extreme
April Weather28°C (83°F)52 mm (2.0 inches)59%extreme
May Weather30°C (86°F)77 mm (3.0 inches)64%extreme
June Weather29°C (84°F)235 mm (9.3 inches)69%extreme
July Weather29°C (85°F)77 mm (3.0 inches)82%extreme
August Weather29°C (84°F)128 mm (5.0 inches)87%extreme
September Weather28°C (83°F)207 mm (8.1 inches)87%extreme
October Weather27°C (81°F)261 mm (10.3 inches)88%extreme
November Weather25°C (77°F)189 mm (7.4 inches)88%very high
December Weather23°C (74°F)92 mm (3.6 inches)88%very high

Compare Santa Cruz's Climate with Cities Worldwide