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September Weather in La Reforma, Mexico

Last updated: August 27, 2025

In September, the average temperature in La Reforma, Mexico is a warm 29°C (84°F). While you can expect the minimum temperature to drop to 23°C (74°F), it can soar to a sizzling 36°C (97°F) on hotter days. Be prepared for some rain, as 139 mm (5.5 in) of precipitation is typically recorded over 18 days this month, contributing to an average humidity of 78%.

September Temperature in La Reforma

In September in La Reforma, the average temperature is 29°C (84°F). Maximums can reach 36°C (97°F), while minimums can drop to as low as 23°C (74°F). This climate makes La Reforma an ideal destination for travelers seeking warm weather and outdoor adventures.

September Weather in La Reforma: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Reforma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Reforma, September typically has an average temperature of 29°C (84°F), with highs reaching up to 36°C (97°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec666669737882868684827568
Data source: Temperature data for La Reforma 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 La Reforma

In La Reforma in September, the precipitation amount is 139 mm (5.5 in) over the course of 18 days.

September Precipitation Trends in La Reforma

The chart displays monthly precipitation patterns in La Reforma, 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 La Reforma, September typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec6182001966133139392910
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Reforma

In La Reforma 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 La Reforma

This chart illustrates the average monthly humidity levels in La Reforma, 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 La Reforma is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%67%62%58%59%64%74%78%78%75%74%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in La Reforma

In La Reforma 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 La Reforma.

Maximum UV Index Levels in La Reforma for September

The chart shows the monthly maximum UV Index (UVI) for La Reforma 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 La Reforma typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79101213121212121086
Data source: La Reforma 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 La Reforma Compares to Other Months

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

This table compares monthly weather conditions in La Reforma, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (66°F)6 mm (0.2 inches)70%high
February Weather19°C (67°F)18 mm (0.7 inches)67%very high
March Weather20°C (69°F)2 mm (0.1 inches)62%very high
April Weather23°C (73°F)0 mm (0.0 inches)58%extreme
May Weather25°C (78°F)0 mm (0.0 inches)59%extreme
June Weather28°C (83°F)18 mm (0.7 inches)64%extreme
July Weather30°C (86°F)66 mm (2.6 inches)74%extreme
August Weather30°C (86°F)133 mm (5.2 inches)78%extreme
September Weather29°C (84°F)139 mm (5.5 inches)78%extreme
October Weather28°C (83°F)39 mm (1.5 inches)75%very high
November Weather24°C (76°F)29 mm (1.1 inches)74%very high
December Weather20°C (69°F)10 mm (0.4 inches)72%high

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