September Weather in Santa Cruz, Aruba

Last updated: August 22, 2025

In September, the average temperature in Santa Cruz, Aruba reaches a warm 28°C (83°F), with daily highs of 30°C (86°F) and lows around 25°C (78°F). Expect 51 mm (2.0 in) of precipitation spread over about 10 days, keeping the atmosphere crisp and refreshing. The average humidity sits at a comfortable 81%, adding to the tropical feel of this vibrant locale.

September Temperature in Santa Cruz

In September in Santa Cruz, the average temperature is 28°C (83°F), with maximums reaching 30°C (86°F) and minimums dropping to as low as 25°C (78°F). This pleasant climate makes it an ideal destination for travelers seeking warm 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 28°C (83°F), with highs reaching up to 30°C (86°F) and lows dropping to around 25°C (78°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 51 mm (2.0 in) spread over a period of 10 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 51 mm (2.0 inches) of precipitation spread over approximately 10 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 81%. With an average temperature of 28°C (83°F), this humidity feels like walking through a warm, damp blanket, making travel feel both stifling and exhausting.

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.

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.

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	26°C (79°F)	35 mm (1.4 inches)	80%	extreme
February Weather	26°C (78°F)	25 mm (1.0 inches)	81%	extreme
March Weather	26°C (79°F)	23 mm (0.9 inches)	81%	extreme
April Weather	26°C (80°F)	15 mm (0.6 inches)	82%	extreme
May Weather	27°C (80°F)	21 mm (0.8 inches)	84%	extreme
June Weather	27°C (81°F)	18 mm (0.7 inches)	85%	extreme
July Weather	27°C (81°F)	20 mm (0.8 inches)	85%	extreme
August Weather	28°C (82°F)	36 mm (1.4 inches)	83%	extreme
September Weather	28°C (83°F)	51 mm (2.0 inches)	81%	extreme
October Weather	28°C (83°F)	111 mm (4.4 inches)	81%	extreme
November Weather	27°C (81°F)	109 mm (4.3 inches)	82%	extreme
December Weather	27°C (80°F)	53 mm (2.1 inches)	81%	very high