San Francisco weather

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The weather guide for California (San Francisco) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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More about San Francisco

Which is the hottest month in San Francisco?

The hottest time of year in San Francisco is normally September. Expect maximum daytime temperatures to reach 22°C.

Which month has the most rain in San Francisco?

In terms of rainfall, January is usually the wettest month in San Francisco with 125mm on average. There are normally 10 days in January with some rain.

When is it sunniest in San Francisco?

The sunniest time of year in San Francisco is normally April with bright sunshine on average for 78% of daylight hours; that's 10 hours of sunshine per day.

When is the sea warmest in San Francisco?

The sea is usually at its warmest in San Francisco in September when the water temperature reaches 14°C.

What is the flight time to California from the UK?

The flight time to California from the UK is typically 11 hours.

What is the time difference between California and the UK?

The time difference between California and the UK is GMT-8 hours.

What is the main language spoken in California?

The main language spoken in California is English.

Learn a language for California with Busuu*, Lingoda* and Rocket Languages*.

What is the currency in California?

The currency in California is the US Dollar (USD).

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Which plugs are used in California?

California uses electrical plug type A + B (120 Volts).

Which side of the road do they drive on in California?

They drive on the right side of the road in California.

Do you need a visa for California?

Yes, UK passport holders do need a visa to enter California.

Check USA visa requirements for all passport holders with VisaHQ* and iVisa.com*.

Compare San Francisco weather with the USA

Below the San Francisco weather chart shows average maximum daytime temperature for San Francisco, California, USA and the USA (Washington).

Maximum daytime temperature (°C)

San Francisco, California, USA
USA (Washington)
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Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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