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October Weather in San Mateo, Mexico

Last updated: August 27, 2025

In October, the average temperature in San Mateo, Mexico hovers around 27°C (80°F). You'll experience a minimum of 22°C (72°F) and a maximum of 32°C (91°F), making it an ideal time for warm-weather activities. However, be prepared for some rain, as the area sees about 174 mm (6.8 in) of precipitation over 18 days. With an average humidity of 72%, it's a month where staying hydrated is key!

October Temperature in San Mateo

In October in San Mateo, the average temperature is 27°C (80°F). Maximum temperatures can reach 32°C (91°F), while minimums can drop as low as 22°C (72°F). It's a great time to visit, offering warm weather perfect for outdoor activities and exploration.

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 (80°F), with highs reaching up to 32°C (91°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec737373727580828180807875
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 174 mm (6.8 in) over a span of 18 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 174 mm (6.8 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec1419001116100272253174268
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 72%. With an average temperature of 27°C (80°F), this humidity feels like a warm, sticky embrace that can make outdoor activities exhausting and often requires frequent breaks in the shade for travelers to stay comfortable.

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 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%70%71%72%73%74%73%74%73%72%69%70%
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 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 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 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131313131213131297
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 Weather23°C (74°F)14 mm (0.6 inches)68%very high
February Weather23°C (73°F)19 mm (0.7 inches)70%very high
March Weather23°C (73°F)0 mm (0.0 inches)70%extreme
April Weather22°C (73°F)0 mm (0.0 inches)72%extreme
May Weather24°C (76°F)1 mm (0.1 inches)73%extreme
June Weather26°C (80°F)116 mm (4.6 inches)74%extreme
July Weather28°C (82°F)100 mm (3.9 inches)73%extreme
August Weather27°C (82°F)272 mm (10.7 inches)74%extreme
September Weather27°C (81°F)253 mm (10.0 inches)73%extreme
October Weather27°C (80°F)174 mm (6.8 inches)72%extreme
November Weather25°C (78°F)26 mm (1.0 inches)69%very high
December Weather24°C (75°F)8 mm (0.3 inches)70%high

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