nomadseason

October Weather in Palo Alto, United States

Last updated: June 24, 2025

In October, the average temperature in Palo Alto, United States is a cool 13°C (57°F), with minimums dipping as low as 0°C (33°F) and maximums soaring up to 31°C (88°F). Expect an average precipitation of 117 mm (4.6 in) spread over 11 days, contributing to an average humidity of 79%. Prepare accordingly for this diverse climate!

October Temperature in Palo Alto

In October in Palo Alto, the average temperature is 13°C (57°F). Maximum temperatures can reach 31°C (88°F), while minimum temperatures can drop as low as 0°C (33°F). It’s a great time to visit if you enjoy mild weather with the possibility of warmer days.

October Weather in Palo Alto: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Palo Alto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Palo Alto, October typically has an average temperature of 13°C (57°F), with highs reaching up to 31°C (88°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec303339506169757266564135
Data source: Temperature data for Palo Alto generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Palo Alto

In Palo Alto in October, the total precipitation amount reaches 117 mm (4.6 in) over the course of 11 days.

October Precipitation Trends in Palo Alto

The chart displays monthly precipitation patterns in Palo Alto, 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 Palo Alto, October typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec74106961111331181631551171179993
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

October Humidity in Palo Alto

In Palo Alto in October, humidity is 79%. With an average temperature of 13°C (57°F), this humidity feels like a damp chill that wraps around you, making travel slightly uncomfortable, as the moisture in the air clings to your skin and creates a need for layered clothing to combat the cool and sticky conditions.

October Average Humidity in Palo Alto

This chart illustrates the average monthly humidity levels in Palo Alto, 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 Palo Alto is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Palo Alto

In Palo Alto in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Palo Alto, you can refer to this Hourly UV Index in Palo Alto.

Maximum UV Index Levels in Palo Alto for October

The chart shows the monthly maximum UV Index (UVI) for Palo Alto 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 Palo Alto typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Palo Alto 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 Palo Alto Compares to Other Months

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

This table compares monthly weather conditions in Palo Alto, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)74 mm (2.9 inches)87%moderate
February Weather1°C (33°F)106 mm (4.2 inches)85%moderate
March Weather4°C (39°F)96 mm (3.8 inches)85%high
April Weather10°C (50°F)111 mm (4.4 inches)83%very high
May Weather16°C (61°F)133 mm (5.2 inches)75%very high
June Weather21°C (69°F)118 mm (4.6 inches)73%very high
July Weather24°C (75°F)163 mm (6.4 inches)65%very high
August Weather22°C (73°F)155 mm (6.1 inches)62%very high
September Weather19°C (67°F)117 mm (4.6 inches)66%very high
October Weather13°C (57°F)117 mm (4.6 inches)79%high
November Weather5°C (42°F)99 mm (3.9 inches)87%moderate
December Weather1°C (35°F)93 mm (3.7 inches)85%low

Compare Palo Alto's Climate with Cities Worldwide