October Weather in Vista Santa Rosa, United States

Last updated: June 24, 2025

In Vista Santa Rosa, United States, the average temperature for October is a comfortable 21°C (71°F). However, be prepared for fluctuations, as temperatures can dip to a chilly 5°C (41°F) or soar up to a sweltering 39°C (102°F). During this month, expect a total precipitation of 6 mm (0.2 in) over the course of just 1 day, with average humidity hovering around 58%.

October Temperature in Vista Santa Rosa

In October in Vista Santa Rosa, the average temperature is 21°C (71°F). Maximum temperatures can reach 39°C (102°F), while the minimum can drop as low as 5°C (41°F). Be prepared for a wide range of temperatures to make the most of your travel experience.

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

The chart illustrates October temperature patterns in Vista Santa Rosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vista Santa Rosa, October typically has an average temperature of 21°C (71°F), with highs reaching up to 39°C (102°F) and lows dropping to around 5°C (41°F).

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

October Precipitation in Vista Santa Rosa

In Vista Santa Rosa in October, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.

October Precipitation Trends in Vista Santa Rosa

The chart displays monthly precipitation patterns in Vista Santa Rosa, 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 Vista Santa Rosa, October typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 1 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Vista Santa Rosa

In Vista Santa Rosa in October humidity is 58%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, making it pleasant for traveling but slightly sticky during outdoor activities.

October Average Humidity in Vista Santa Rosa

This chart illustrates the average monthly humidity levels in Vista Santa Rosa, 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 Vista Santa Rosa is approximately 58%, 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 Vista Santa Rosa

In Vista Santa Rosa in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Vista Santa Rosa.

Maximum UV Index Levels in Vista Santa Rosa for October

The chart shows the monthly maximum UV Index (UVI) for Vista Santa Rosa 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 Vista Santa Rosa typically reaches 8, which falls under the very high exposure category.

Data source: Vista Santa Rosa 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 Vista Santa Rosa Compares to Other Months

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

This table compares monthly weather conditions in Vista Santa Rosa, 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 (53°F)	28 mm (1.1 inches)	72%	moderate
February Weather	13°C (55°F)	28 mm (1.1 inches)	77%	high
March Weather	15°C (60°F)	18 mm (0.7 inches)	67%	very high
April Weather	20°C (68°F)	11 mm (0.4 inches)	56%	extreme
May Weather	23°C (73°F)	2 mm (0.1 inches)	46%	extreme
June Weather	29°C (84°F)	1 mm (0.0 inches)	48%	extreme
July Weather	32°C (89°F)	10 mm (0.4 inches)	46%	extreme
August Weather	32°C (89°F)	7 mm (0.3 inches)	42%	extreme
September Weather	28°C (83°F)	4 mm (0.2 inches)	52%	extreme
October Weather	21°C (71°F)	6 mm (0.2 inches)	58%	very high
November Weather	16°C (61°F)	10 mm (0.4 inches)	66%	moderate
December Weather	11°C (52°F)	27 mm (1.1 inches)	74%	moderate