September Weather in Santa Cruz, Mexico

Last updated: August 27, 2025

In Santa Cruz, Mexico, the average temperature in September reaches a warm 29°C (84°F), with a comfortable minimum of 24°C (76°F) and a sizzling maximum of 35°C (96°F). Expect precipitation of around 253 mm (10.0 in) spread over 25 days, contributing to an average humidity of 78%. Prepare for a warm and humid month ahead!

September Temperature in Santa Cruz

In September in Santa Cruz, the average temperature is 29°C (84°F). Maximums can reach 35°C (96°F) and minimums can be as low as 24°C (76°F). This warm climate makes it an ideal destination for travelers seeking sunny weather 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 29°C (84°F), with highs reaching up to 35°C (96°F) and lows dropping to around 24°C (76°F).

Data source: Temperature data for Santa Cruz generated using information from the Copernicus Climate Change Service.

September Precipitation in Santa Cruz

In Santa Cruz in September, the total precipitation amount is 253 mm (10.0 in) distributed over 25 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 253 mm (10.0 inches) of precipitation spread over approximately 25 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Santa Cruz

In Santa Cruz in September humidity is 78%. With an average temperature of 29°C (84°F), this humidity feels like a thick blanket enveloping you, making travel feel sticky and exhausting as you navigate through 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 78%, offering insight into how humid the weather typically is during this month.

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 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.

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 12, which falls under the extreme exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (72°F)	20 mm (0.8 inches)	71%	high
February Weather	23°C (73°F)	18 mm (0.7 inches)	69%	very high
March Weather	23°C (74°F)	0 mm (0.0 inches)	67%	extreme
April Weather	24°C (76°F)	0 mm (0.0 inches)	66%	extreme
May Weather	27°C (80°F)	1 mm (0.0 inches)	69%	extreme
June Weather	29°C (84°F)	56 mm (2.2 inches)	78%	extreme
July Weather	30°C (86°F)	119 mm (4.7 inches)	79%	extreme
August Weather	29°C (85°F)	252 mm (9.9 inches)	78%	extreme
September Weather	29°C (84°F)	253 mm (10.0 inches)	78%	extreme
October Weather	29°C (84°F)	159 mm (6.3 inches)	75%	extreme
November Weather	26°C (79°F)	13 mm (0.5 inches)	74%	very high
December Weather	23°C (74°F)	11 mm (0.4 inches)	74%	high