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September Weather in Rosales, Mexico

Last updated: August 27, 2025

In September, the average temperature in Rosales, Mexico reaches a warm 30°C (86°F). Temperatures can vary significantly, with a minimum of 18°C (65°F) and soaring as high as 43°C (109°F). Expect 96 mm (3.8 in) of rain spread over 13 days, contributing to an average humidity level of 82%.

September Temperature in Rosales

In September in Rosales, the average temperature is 30°C (86°F). Maximums can reach 43°C (109°F) and minimums can be as low as 18°C (65°F). It's an ideal time for travelers who enjoy warm weather, but be prepared for heat and plan outdoor activities for the cooler parts of the day.

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

The chart illustrates September temperature patterns in Rosales, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosales, September typically has an average temperature of 30°C (86°F), with highs reaching up to 43°C (109°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec646671778288888885837465
Data source: Temperature data for Rosales 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 Rosales

In Rosales in September, the precipitation amount is 96 mm (3.8 in) spread over 13 days, indicating a relatively rainy period.

September Precipitation Trends in Rosales

The chart displays monthly precipitation patterns in Rosales, 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 Rosales, September typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec1711800228910796183023
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rosales

In Rosales in September, humidity is 82%. With an average temperature of 30°C (86°F), this humidity feels like you’re walking through a warm, damp blanket, making outdoor activities challenging and requiring frequent breaks and hydration.

September Average Humidity in Rosales

This chart illustrates the average monthly humidity levels in Rosales, 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 Rosales is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%67%60%51%47%50%70%82%82%78%78%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rosales

In Rosales in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Rosales.

Maximum UV Index Levels in Rosales for September

The chart shows the monthly maximum UV Index (UVI) for Rosales 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 Rosales typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6810121212121211975
Data source: Rosales 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 Rosales Compares to Other Months

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

This table compares monthly weather conditions in Rosales, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)17 mm (0.7 inches)74%high
February Weather19°C (66°F)10 mm (0.4 inches)67%very high
March Weather21°C (71°F)8 mm (0.3 inches)60%very high
April Weather25°C (77°F)0 mm (0.0 inches)51%extreme
May Weather28°C (82°F)0 mm (0.0 inches)47%extreme
June Weather31°C (88°F)22 mm (0.9 inches)50%extreme
July Weather31°C (88°F)89 mm (3.5 inches)70%extreme
August Weather31°C (88°F)107 mm (4.2 inches)81%extreme
September Weather30°C (86°F)96 mm (3.8 inches)82%extreme
October Weather28°C (83°F)18 mm (0.7 inches)78%very high
November Weather24°C (75°F)29 mm (1.2 inches)78%high
December Weather19°C (66°F)23 mm (0.9 inches)80%moderate

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