San Francisco County weather

Our guide to the weather in San Francisco County during November

18

Average high

4

UV Index

43mm

Monthly rainfall

67%

Humidity

We've looked at the most up-to-date weather data for San Francisco County, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about San Francisco County weather in November.

What's the temperature like in San Francisco County during November?

The temperature reaches around 18℃ during the daytime in November, falling away to 11℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in San Francisco County during November?

On average, there will be 3 rainy days during the month, amounting to 43.4mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in San Francisco County during November?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in November. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.

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Weather in San Francisco County

Our month-by-month guide to the weather and climate in San Francisco County

14.9

San Francisco County weather in

January
15.8

San Francisco County weather in

February
16.3

San Francisco County weather in

March
17.9

San Francisco County weather in

April
19.2

San Francisco County weather in

May
21.9

San Francisco County weather in

June
23.1

San Francisco County weather in

July
23.5

San Francisco County weather in

August
24.3

San Francisco County weather in

September
22.1

San Francisco County weather in

October
18.0

San Francisco County weather in

November
14.1

San Francisco County weather in

December