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September Weather in Santa Clara, Mexico

Last updated: August 27, 2025

In Santa Clara, Mexico, the average temperature in September hovers around 21°C (70°F), with lows dipping to 11°C (52°F) and highs reaching up to 32°C (89°F). During this month, expect 111 mm (4.4 in) of precipitation spread over 16 days, coupled with an average humidity of 82%. Enjoy the warm yet humid weather while preparing for those occasional showers!

September Temperature in Santa Clara

In September in Santa Clara, the average temperature is 21°C (70°F). Maximums can reach 32°C (89°F), while minimums can drop as low as 11°C (52°F). This makes it an ideal destination for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Santa Clara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Clara, September typically has an average temperature of 21°C (70°F), with highs reaching up to 32°C (89°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec566267727777747470686257
Data source: Temperature data for Santa Clara 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 Clara

In Santa Clara in September, the precipitation amount is 111 mm (4.4 in) occurring over the course of 16 days.

September Precipitation Trends in Santa Clara

The chart displays monthly precipitation patterns in Santa Clara, 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 Clara, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec121410101440875211143910
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santa Clara

In Santa Clara in September, humidity is 82%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace that can quickly lead to discomfort for travelers, making outdoor activities less enjoyable and requiring frequent breaks for hydration.

September Average Humidity in Santa Clara

This chart illustrates the average monthly humidity levels in Santa Clara, 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 Clara is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%62%53%48%52%64%73%71%82%83%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santa Clara

In Santa Clara 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 Clara.

Maximum UV Index Levels in Santa Clara for September

The chart shows the monthly maximum UV Index (UVI) for Santa Clara 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 Clara typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131414141414131297
Data source: Santa Clara 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 Clara Compares to Other Months

Weather in Santa Clara varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santa Clara, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Santa Clara, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (57°F)12 mm (0.5 inches)70%very high
February Weather16°C (62°F)14 mm (0.5 inches)62%very high
March Weather20°C (68°F)10 mm (0.4 inches)53%extreme
April Weather22°C (72°F)10 mm (0.4 inches)48%extreme
May Weather25°C (77°F)14 mm (0.5 inches)52%extreme
June Weather25°C (77°F)40 mm (1.6 inches)64%extreme
July Weather23°C (74°F)87 mm (3.4 inches)73%extreme
August Weather23°C (74°F)52 mm (2.0 inches)71%extreme
September Weather21°C (70°F)111 mm (4.4 inches)82%extreme
October Weather20°C (68°F)43 mm (1.7 inches)83%extreme
November Weather17°C (63°F)9 mm (0.4 inches)82%very high
December Weather14°C (57°F)10 mm (0.4 inches)84%high

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