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October Weather in San Guillermo, Mexico

Last updated: August 27, 2025

In San Guillermo, Mexico, the average temperature in October is a pleasant 19°C (67°F). However, temperatures can vary widely, with a minimum of -2°C (29°F) and a maximum of 32°C (90°F). During this month, expect about 34 mm (1.3 in) of precipitation over 5 days, contributing to an average humidity of 77%. Whether you prefer the coolness or the warmth, this season offers a dynamic range of weather!

October Temperature in San Guillermo

In October in San Guillermo, the average temperature is 19°C (67°F). Maximums can reach 32°C (90°F), and minimums can be as low as -2°C (29°F). Be prepared for a broad range of temperatures when traveling to San Guillermo this month.

October Weather in San Guillermo: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in San Guillermo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Guillermo, October typically has an average temperature of 19°C (67°F), with highs reaching up to 32°C (90°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec515663707782797872675951
Data source: Temperature data for San Guillermo 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.

October Precipitation in San Guillermo

In San Guillermo in October, the precipitation amount is 34 mm (1.3 in) over the course of 5 days.

October Precipitation Trends in San Guillermo

The chart displays monthly precipitation patterns in San Guillermo, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In San Guillermo, October typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec6545630796687341418
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Guillermo

In San Guillermo in October, humidity is 77%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace, making travel slightly more challenging as the air clings to your skin, turning every step into a leisurely stroll through a sauna.

October Average Humidity in San Guillermo

This chart illustrates the average monthly humidity levels in San Guillermo, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in San Guillermo is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%71%60%52%49%50%65%70%79%77%83%85%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in San Guillermo

In San Guillermo in October, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in San Guillermo.

Maximum UV Index Levels in San Guillermo for October

The chart shows the monthly maximum UV Index (UVI) for San Guillermo in October, 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 October, the maximum UV index in San Guillermo typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69111313131313121086
Data source: San Guillermo October 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 October Weather in San Guillermo Compares to Other Months

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

This table compares monthly weather conditions in San Guillermo, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)6 mm (0.2 inches)78%high
February Weather13°C (56°F)5 mm (0.2 inches)71%very high
March Weather17°C (63°F)4 mm (0.2 inches)60%extreme
April Weather21°C (70°F)5 mm (0.2 inches)52%extreme
May Weather25°C (77°F)6 mm (0.2 inches)49%extreme
June Weather28°C (83°F)30 mm (1.2 inches)50%extreme
July Weather26°C (79°F)79 mm (3.1 inches)65%extreme
August Weather25°C (78°F)66 mm (2.6 inches)70%extreme
September Weather22°C (73°F)87 mm (3.4 inches)79%extreme
October Weather19°C (67°F)34 mm (1.3 inches)77%very high
November Weather15°C (60°F)14 mm (0.6 inches)83%very high
December Weather11°C (51°F)18 mm (0.7 inches)84%high

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