City and County of San Francisco (San Francisco)
October
Weather in City and County of San Francisco, California for October 2026
Your guide to City and County of San Francisco weather in October - trends and predictions
The forecast for the first days of October 2026 in City and County of San Francisco predicts a temperature of 19.4 °F, which is cooler than the historical average.
In general, the average temperature in City and County of San Francisco at the beginning of October is 22.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.6 °F by the end of October.
With an average of 2 rainy days, City and County of San Francisco experiences minimal rainfall in October.
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Temperatures
Rain 🌧️
More
29
Dry days
2
Rainy days
0
Snow days
19°/12°
Temperatures
15 km/h
Avg max wind
74 %
Avg humidity
City and County of San Francisco Weather October
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Temperatures trend during October in City and County of San Francisco
See the weather trend as well as the moving average line
October weather in City and County of San Francisco day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Sunny | 22° /16° | 0 mm | 6 | |
| Oct. 2 | Sunny | 20° /16° | 0 mm | 5 | |
| Oct. 3 | Sunny | 26° /16° | 0 mm | 7 | |
| Oct. 4 | Sunny | 27° /22° | 0 mm | 7 | |
| Oct. 5 | Sunny | 23° /14° | 0 mm | 6 | |
| Oct. 6 |  Overcast | 21° /14° | 0 mm | 5 | |
| Oct. 7 |  Partly cloudy | 21° /13° | 0 mm | 5 | |
| Oct. 8 |  Cloudy | 18° /12° | 0 mm | 5 | |
| Oct. 9 | Sunny | 18° /12° | 0.2 mm | 4 | |
| Oct. 10 | Sunny | 18° /11° | 0.1 mm | 4 | |
| Oct. 11 | Sunny | 18° /11° | 0 mm | 5 | |
| Oct. 12 | Sunny | 18° /11° | 0 mm | 5 | |
| Oct. 13 |  Mist | 17° /12° | 7.8 mm | 4 | |
| Oct. 14 | Sunny | 18° /11° | 0.9 mm | 4 | |
| Oct. 15 | Sunny | 19° /12° | 0 mm | 5 | |
| Oct. 16 | Fog | 19° /12° | 0 mm | 5 | |
| Oct. 17 | Fog | 19° /11° | 0.4 mm | 4 | |
| Oct. 18 | Sunny | 21° /11° | 0 mm | 5 | |
| Oct. 19 | Overcast | 22° /12° | 0 mm | 5 | |
| Oct. 20 |  Heavy rain at times | 21° /13° | 1.2 mm | 5 | |
| Oct. 21 |  Moderate rain at times | 18° /12° | 0.2 mm | 4 | |
| Oct. 22 | Moderate or heavy rain shower | 16° /12° | 1.7 mm | 4 | |
| Oct. 23 | Overcast | 17° /11° | 0.5 mm | 4 | |
| Oct. 24 | Fog | 19° /12° | 15 mm | 5 | |
| Oct. 25 | Overcast | 17° /12° | 1.7 mm | 4 | |
| Oct. 26 | Cloudy | 17° /11° | 0 mm | 4 | |
| Oct. 27 | Sunny | 18° /11° | 0 mm | 4 | |
| Oct. 28 | Sunny | 19° /11° | 0 mm | 5 | |
| Oct. 29 | Sunny | 19° /11° | 0 mm | 5 | |
| Oct. 30 | Partly cloudy | 16° /11° | 0 mm | 4 | |
| Oct. 31 | Overcast | 17° /11° | 0.5 mm | 5 | |
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Important Notice
Our weather forecast for City and County of San Francisco in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the City and County of San Francisco forecast closer to your planned date for the most up-to-date weather information.
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City and County of San Francisco in October - FAQ
What are the expected maximum and minimum temperatures in City and County of San Francisco during October?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in City and County of San Francisco during October?
In October, City and County of San Francisco can expect light to moderate rainfall, totaling 40.5 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in City and County of San Francisco during October?
The average wind speed in City and County of San Francisco during October is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in City and County of San Francisco
Explore the daily rainfall trends and prepare for City and County of San Franciscos October weather 💧
Typically, City and County of San Francisco has 2 rainy days in October with a total of 40.5 mm of rainfall.
UV exposure in City and County of San Francisco during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Where is City and County of San Francisco?Get accurate weather forecasts for City and County of San Francisco, located at latitude 37.775 and longitude -122.419. Stay updated with localized weather information tailored for City and County of San Francisco.
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