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September Weather in Santa Cruz, Brazil

Last updated: August 22, 2025

In Santa Cruz, Brazil, the average temperature in September reaches a comfortable 25°C (78°F). Expect nighttime lows around 19°C (66°F) and warm days peaking at 34°C (93°F). With minimal precipitation of 6 mm (0.2 in) spread across 0 days, and an average humidity of 72%, the weather is perfect for outdoor adventures!

September Temperature in Santa Cruz

In September in Santa Cruz, the average temperature is 25°C (78°F). Maximum temperatures can reach 34°C (93°F), while the minimum can drop to as low as 19°C (66°F). This makes it an ideal time for travelers seeking warm weather and pleasant 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 25°C (78°F), with highs reaching up to 34°C (93°F) and lows dropping to around 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec818180797877767778808181
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 6 mm (0.2 in), spread over a duration of 0 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 6 mm (0.2 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec27678877552740767815
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 72%. With an average temperature of 25°C (78°F), this humidity feels like a warm blanket wrapping around you, making it essential to stay hydrated and take breaks in the shade while exploring.

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 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%90%89%90%86%80%77%72%68%66%70%
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 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Santa Cruz, you can check here.

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 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151415141311111214131414
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 Weather27°C (81°F)27 mm (1.1 inches)86%extreme
February Weather27°C (81°F)67 mm (2.6 inches)89%extreme
March Weather27°C (80°F)88 mm (3.5 inches)89%extreme
April Weather26°C (79°F)77 mm (3.0 inches)89%extreme
May Weather26°C (78°F)55 mm (2.2 inches)90%extreme
June Weather25°C (77°F)27 mm (1.1 inches)86%extreme
July Weather24°C (76°F)40 mm (1.6 inches)80%extreme
August Weather25°C (77°F)7 mm (0.3 inches)77%extreme
September Weather25°C (78°F)6 mm (0.2 inches)72%extreme
October Weather26°C (80°F)7 mm (0.3 inches)68%extreme
November Weather27°C (81°F)8 mm (0.3 inches)66%extreme
December Weather27°C (81°F)15 mm (0.6 inches)70%extreme

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