October Weather in Santa Clara, United States

Last updated: June 24, 2025

In October, the average temperature in Santa Clara, United States is a pleasant 22°C (72°F). However, be prepared for a temperature range that can dip to a chilly 2°C (36°F) or soar to a blistering 36°C (98°F). Expect around 78 mm (3.1 in) of precipitation over approximately 10 days, contributing to an average humidity level of 74%. Stay comfortable and enjoy your time exploring!

October Temperature in Santa Clara

In October in Santa Clara, the average temperature is 22°C (72°F). The maximum can reach 36°C (98°F), while the minimum can be as low as 2°C (36°F). Travelers should prepare for a wide range of temperatures, making it essential to pack both warm and light clothing.

October Weather in Santa Clara: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Santa Clara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Clara, October typically has an average temperature of 22°C (72°F), with highs reaching up to 36°C (98°F) and lows dropping to around 2°C (36°F).

Data source: Temperature data for Santa Clara generated using information from the Copernicus Climate Change Service.

October Precipitation in Santa Clara

In Santa Clara in October, the precipitation amount is 78 mm (3.1 in) over the course of 10 days.

October Precipitation Trends in Santa Clara

The chart displays monthly precipitation patterns in Santa Clara, 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 Santa Clara, October typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

October Humidity in Santa Clara

In Santa Clara in October, humidity is 74%. With an average temperature of 22°C (72°F), this humidity feels like a warm blanket enveloping you, making it a bit uncomfortable for traveling, as every step feels heavier and the air is thick.

October Average Humidity in Santa Clara

This chart illustrates the average monthly humidity levels in Santa Clara, 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 Santa Clara is approximately 74%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Santa Clara

In Santa Clara in October, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Santa Clara.

Maximum UV Index Levels in Santa Clara for October

The chart shows the monthly maximum UV Index (UVI) for Santa Clara 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 Santa Clara typically reaches 9, which falls under the very high exposure category.

Data source: Santa Clara 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 Santa Clara Compares to Other Months

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

This table compares monthly weather conditions in Santa Clara, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	43 mm (1.7 inches)	79%	moderate
February Weather	13°C (56°F)	51 mm (2.0 inches)	79%	very high
March Weather	19°C (66°F)	53 mm (2.1 inches)	74%	very high
April Weather	21°C (71°F)	84 mm (3.3 inches)	76%	extreme
May Weather	26°C (78°F)	116 mm (4.6 inches)	81%	extreme
June Weather	28°C (83°F)	84 mm (3.3 inches)	76%	extreme
July Weather	30°C (86°F)	70 mm (2.8 inches)	66%	extreme
August Weather	30°C (87°F)	82 mm (3.2 inches)	58%	extreme
September Weather	27°C (81°F)	111 mm (4.4 inches)	65%	extreme
October Weather	22°C (72°F)	78 mm (3.1 inches)	74%	very high
November Weather	17°C (62°F)	51 mm (2.0 inches)	81%	high
December Weather	14°C (57°F)	59 mm (2.3 inches)	86%	moderate