October Weather in San Francisco, Colombia

Last updated: August 23, 2025

In October, the average temperature in San Francisco, Colombia hovers around 13°C (56°F), with a minimum of 7°C (44°F) and a maximum peaking at 21°C (70°F). Be prepared for 274 mm (10.8 in) of precipitation over the course of 28 days, contributing to an average humidity level of 67%. Enjoy the season while staying cozy and prepared for the moist weather!

October Temperature in San Francisco

In October in San Francisco, the average temperature is 13°C (56°F). The maximum can reach 21°C (70°F), and the minimum can be as low as 7°C (44°F). This mild climate makes San Francisco a great destination for travelers looking to enjoy comfortable outdoor activities.

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

The chart illustrates October temperature patterns in San Francisco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Francisco, October typically has an average temperature of 13°C (56°F), with highs reaching up to 21°C (70°F) and lows dropping to around 7°C (44°F).

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

October Precipitation in San Francisco

In San Francisco in October, the total precipitation amount is 274 mm (10.8 in) spread over a period of 28 days.

October Precipitation Trends in San Francisco

The chart displays monthly precipitation patterns in San Francisco, 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 Francisco, October typically receives around 274 mm (10.8 inches) of precipitation spread over approximately 28 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 San Francisco

In San Francisco in October humidity is 67%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities a bit uncomfortable, but still manageable for travelers who embrace the cool, crisp air.

October Average Humidity in San Francisco

This chart illustrates the average monthly humidity levels in San Francisco, 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 Francisco is approximately 67%, 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 San Francisco

In San Francisco in October, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in San Francisco, you can check Hourly UV Index in San Francisco.

Maximum UV Index Levels in San Francisco for October

The chart shows the monthly maximum UV Index (UVI) for San Francisco 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 Francisco typically reaches 17, which falls under the extreme exposure category.

Data source: San Francisco 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 Francisco Compares to Other Months

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

This table compares monthly weather conditions in San Francisco, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	205 mm (8.1 inches)	72%	extreme
February Weather	14°C (57°F)	218 mm (8.6 inches)	66%	extreme
March Weather	14°C (57°F)	350 mm (13.8 inches)	74%	extreme
April Weather	13°C (56°F)	336 mm (13.2 inches)	83%	extreme
May Weather	13°C (56°F)	353 mm (13.9 inches)	93%	extreme
June Weather	13°C (55°F)	292 mm (11.5 inches)	93%	extreme
July Weather	12°C (54°F)	231 mm (9.1 inches)	84%	extreme
August Weather	12°C (54°F)	161 mm (6.3 inches)	61%	extreme
September Weather	13°C (55°F)	186 mm (7.3 inches)	53%	extreme
October Weather	13°C (56°F)	274 mm (10.8 inches)	67%	extreme
November Weather	14°C (57°F)	305 mm (12.0 inches)	78%	extreme
December Weather	13°C (56°F)	272 mm (10.7 inches)	85%	extreme