Weather in San Francisco, California for October 2026
So far, October 2026 in San Francisco shows a warmer trend than usual by 2 °C.
Expect cooler weather in the next days in San Francisco with the forecast suggesting a temperature of 16.3 °C, lower than the historical average.
In general, the average temperature in San Francisco at the beginning of October is 21.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.5 °C by the end of October.
With an average of 2 rainy days, San Francisco experiences minimal rainfall in October.
Is October a good time to visit San Francisco? check out the best time to travel to San Francisco page.
✨ Is October a good time to visit San Francisco? – Ask the AI Weatherman
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San Francisco Weather October
Temperatures trend during October in San Francisco
October weather in San Francisco day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Light rain | 21° /14° | 8.6 mm | 6 | |
| Oct. 2 |  Sunny | 21° /14° | 0 mm | 5 | |
| Oct. 3 | Sunny | 23° /13° | 0 mm | 5.9 | |
| Oct. 4 |  Overcast | 21° /14° | 0 mm | 5 | |
| Oct. 5 | Sunny | 22° /15° | 0 mm | 5.7 | |
| Oct. 6 | Overcast | 22° /14° | 0 mm | 5 | |
| Oct. 7 | Sunny | 21° /14° | 0 mm | 5 | |
| Oct. 8 | Sunny | 19° /13° | 0 mm | 5 | |
| Oct. 9 | Sunny | 17° /12° | 0.1 mm | 4 | |
| Oct. 10 | Sunny | 17° /12° | 0.1 mm | 4 | |
| Oct. 11 | Sunny | 18° /12° | 0 mm | 5 | |
| Oct. 12 | Sunny | 18° /12° | 0 mm | 5 | |
| Oct. 13 | Light rain | 18° /12° | 6.5 mm | 4 | |
| Oct. 14 | Sunny | 18° /12° | 0.7 mm | 4 | |
| Oct. 15 | Sunny | 21° /12° | 0 mm | 4.9 | |
| Oct. 16 | Sunny | 21° /13° | 0 mm | 4.8 | |
| Oct. 17 |  Fog | 20° /12° | 0.3 mm | 4 | |
| Oct. 18 | Sunny | 21° /12° | 0 mm | 4.6 | |
| Oct. 19 | Overcast | 21° /13° | 0 mm | 4.5 | |
| Oct. 20 |  Patchy rain possible | 20° /13° | 1.1 mm | 4 | |
| Oct. 21 | Patchy rain possible | 18° /13° | 0.2 mm | 4 | |
| Oct. 22 | Light rain | 16° /12° | 3 mm | 3 | |
| Oct. 23 | Overcast | 17° /12° | 0.4 mm | 4 | |
| Oct. 24 |  Moderate rain | 19° /12° | 12.5 mm | 4.2 | |
| Oct. 25 | Overcast | 19° /14° | 0 mm | 3.6 | |
| Oct. 26 | Sunny | 17° /14° | 0 mm | 4 | |
| Oct. 27 | Sunny | 16° /12° | 0 mm | 3.8 | |
| Oct. 28 | Sunny | 16° /12° | 0 mm | 3.2 | |
| Oct. 29 | Overcast | 16° /13° | 0 mm | 5 | |
| Oct. 30 | Sunny | 15° /12° | 0 mm | 4 | |
| Oct. 31 | Patchy rain possible | 15° /12° | 0.5 mm | 4 | |
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San Francisco in October - FAQ
What are the expected maximum and minimum temperatures in San Francisco during October?
How much rainfall should be expected in San Francisco during October?
What are the typical wind conditions in San Francisco during October?
October rainfall patterns in San Francisco
UV exposure in San Francisco during October
Where is San Francisco?Get accurate weather forecasts for San Francisco, located at latitude 37.775 and longitude -122.419. Stay updated with localized weather information tailored for San Francisco.