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September Weather in Cerritos, Mexico

Last updated: August 27, 2025

In September, the average temperature in Cerritos, Mexico hovers around 23°C (73°F). During this month, temperatures can range from a refreshing 14°C (58°F) at minimum to a warm 35°C (96°F) at maximum. Expect some rain, as the area receives about 111 mm (4.4 in) of precipitation over 19 days, contributing to an average humidity of 81%.

September Temperature in Cerritos

In September in Cerritos, the average temperature is 23°C (73°F). Maximums can reach 35°C (96°F) and minimums can be as low as 14°C (58°F). This pleasant weather makes it an ideal time for travelers to explore the sights and enjoy outdoor activities.

September Weather in Cerritos: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cerritos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cerritos, September typically has an average temperature of 23°C (73°F), with highs reaching up to 35°C (96°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec586367737675747573696359
Data source: Temperature data for Cerritos 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 Cerritos

In Cerritos in September, the precipitation amount is 111 mm (4.4 in) over a span of 19 days.

September Precipitation Trends in Cerritos

The chart displays monthly precipitation patterns in Cerritos, 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 Cerritos, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec28273733699310266111963221
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cerritos

In Cerritos in September, humidity is 81%. With an average temperature of 23°C (73°F), this humidity feels like a heavy blanket wrapping around you, making every step feel more laborious while traveling and causing you to constantly seek out shade or a cool breeze for relief.

September Average Humidity in Cerritos

This chart illustrates the average monthly humidity levels in Cerritos, 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 Cerritos is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%69%65%64%75%78%67%64%82%86%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cerritos

In Cerritos 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 Cerritos.

Maximum UV Index Levels in Cerritos for September

The chart shows the monthly maximum UV Index (UVI) for Cerritos 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 Cerritos typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131414131413131297
Data source: Cerritos 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 Cerritos Compares to Other Months

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

This table compares monthly weather conditions in Cerritos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (58°F)28 mm (1.1 inches)75%very high
February Weather17°C (63°F)27 mm (1.1 inches)69%very high
March Weather20°C (68°F)37 mm (1.5 inches)65%extreme
April Weather23°C (73°F)33 mm (1.3 inches)64%extreme
May Weather24°C (76°F)69 mm (2.7 inches)75%extreme
June Weather24°C (76°F)93 mm (3.7 inches)78%extreme
July Weather24°C (75°F)102 mm (4.0 inches)67%extreme
August Weather24°C (75°F)66 mm (2.6 inches)64%extreme
September Weather23°C (73°F)111 mm (4.4 inches)81%extreme
October Weather21°C (69°F)96 mm (3.8 inches)85%extreme
November Weather17°C (64°F)32 mm (1.3 inches)87%very high
December Weather15°C (59°F)21 mm (0.8 inches)87%high

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