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October Weather in San Mateo, Mexico

Last updated: August 27, 2025

In October, the average temperature in San Mateo, Mexico reaches a warm 27°C (81°F), with daily temperatures ranging from a pleasant 19°C (66°F) to a scorching 36°C (96°F). It's advisable to prepare for some rain, as the area experiences 167 mm (6.6 in) of precipitation over 19 days. With an average humidity of 79%, you can expect a tropical feel throughout the month.

October Temperature in San Mateo

In October, in San Mateo, the average temperature is 27°C (81°F), with maximums reaching 36°C (96°F) and minimums dipping as low as 19°C (66°F). It's an ideal time for travelers who enjoy warm weather and outdoor activities.

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

The chart illustrates October temperature patterns in San Mateo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Mateo, October typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (96°F) and lows dropping to around 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec798286888984828281807977
Data source: Temperature data for San Mateo 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 Mateo

In San Mateo in October, the precipitation amount is 167 mm (6.6 in) over a span of 19 days.

October Precipitation Trends in San Mateo

The chart displays monthly precipitation patterns in San Mateo, 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 Mateo, October typically receives around 167 mm (6.6 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec240024187178223248167293
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Mateo

In San Mateo in October, humidity is 79%. With an average temperature of 27°C (81°F), this humidity feels like a warm and sticky embrace, making travel both challenging and invigorating as the air clings to your skin, urging you to seek shade or a refreshing drink.

October Average Humidity in San Mateo

This chart illustrates the average monthly humidity levels in San Mateo, 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 Mateo is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%64%54%61%75%83%83%85%85%79%76%75%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in San Mateo

In San Mateo in October, 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 San Mateo.

Maximum UV Index Levels in San Mateo for October

The chart shows the monthly maximum UV Index (UVI) for San Mateo 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 Mateo typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131313141413131188
Data source: San Mateo 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 Mateo Compares to Other Months

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

This table compares monthly weather conditions in San Mateo, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)2 mm (0.1 inches)70%very high
February Weather28°C (82°F)4 mm (0.1 inches)64%extreme
March Weather30°C (86°F)0 mm (0.0 inches)54%extreme
April Weather31°C (89°F)0 mm (0.0 inches)61%extreme
May Weather32°C (89°F)24 mm (1.0 inches)75%extreme
June Weather29°C (84°F)187 mm (7.4 inches)83%extreme
July Weather28°C (82°F)178 mm (7.0 inches)83%extreme
August Weather28°C (82°F)223 mm (8.8 inches)85%extreme
September Weather27°C (81°F)248 mm (9.8 inches)85%extreme
October Weather27°C (81°F)167 mm (6.6 inches)79%extreme
November Weather26°C (79°F)29 mm (1.1 inches)76%very high
December Weather25°C (78°F)3 mm (0.1 inches)74%very high

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