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September Weather in Galeras, Mexico

Last updated: August 27, 2025

In September, the average temperature in Galeras, Mexico hovers around 27°C (82°F), with minimums dropping to 21°C (70°F) and reaching maximum highs of 37°C (99°F). While you enjoy the warmth, be prepared for 318 mm (12.5 in) of precipitation spread over 25 days, resulting in an average humidity of a cozy 86%.

September Temperature in Galeras

In September in Galeras, the average temperature is 27°C (82°F). Maximum temperatures can reach 37°C (99°F), while minimums can be as low as 21°C (70°F). Travelers should be prepared for warm weather and pack accordingly to fully enjoy their visit.

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

The chart illustrates September temperature patterns in Galeras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Galeras, September typically has an average temperature of 27°C (82°F), with highs reaching up to 37°C (99°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec727478828583828281807573
Data source: Temperature data for Galeras 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 Galeras

In Galeras in September, the precipitation amount is 318 mm (12.5 in), occurring over the course of 25 days.

September Precipitation Trends in Galeras

The chart displays monthly precipitation patterns in Galeras, 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 Galeras, September typically receives around 318 mm (12.5 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec524426346427022425931828413347
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Galeras

In Galeras in September humidity is 86%. With an average temperature of 27°C (82°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities a challenge and necessitating frequent breaks to stay hydrated while traveling.

September Average Humidity in Galeras

This chart illustrates the average monthly humidity levels in Galeras, 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 Galeras is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%84%81%82%81%81%82%86%90%91%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Galeras

In Galeras 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 Galeras.

Maximum UV Index Levels in Galeras for September

The chart shows the monthly maximum UV Index (UVI) for Galeras 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 Galeras typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911121313131412131198
Data source: Galeras 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 Galeras Compares to Other Months

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

This table compares monthly weather conditions in Galeras, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)52 mm (2.0 inches)88%very high
February Weather24°C (75°F)44 mm (1.7 inches)86%extreme
March Weather25°C (78°F)26 mm (1.0 inches)84%extreme
April Weather28°C (83°F)34 mm (1.3 inches)81%extreme
May Weather30°C (86°F)64 mm (2.5 inches)82%extreme
June Weather28°C (83°F)270 mm (10.6 inches)81%extreme
July Weather28°C (82°F)224 mm (8.8 inches)81%extreme
August Weather28°C (82°F)259 mm (10.2 inches)82%extreme
September Weather27°C (82°F)318 mm (12.5 inches)86%extreme
October Weather26°C (80°F)284 mm (11.2 inches)90%extreme
November Weather24°C (75°F)133 mm (5.2 inches)91%very high
December Weather23°C (73°F)47 mm (1.8 inches)91%very high

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