Weather in San Francisco in March

March in San Francisco is cool outdoor weather: usable if you dress for it, not a beach brief.

In United States, this is how San Francisco actually wears March, not how a country centroid would. Compared with September and January, March sits in the middle of San Francisco's year.

Pack for San Francisco in March, not for a brochure that was photographed in another season.

San Francisco
Average temp
13°C

9–17°C

Rainfall
69 mm

Showers likely

Sunshine
Wind
16 km/h

What to expect

Daytime

Cool days in San Francisco: a jumper you can take off, a shell in the bag. Walking is fine. Lingering outside without a layer is optimism.

Mornings and evenings are colder than the postcard. Pack for both, especially if you leave the built-up centre.

Rain

March is a wetter month in San Francisco. Showers are part of the deal, not a spoiled surprise.

Waterproof shoes matter more than a rain plan for a beach, especially if a beach is not why you came. Build indoor hours into the afternoon.

Evening

Evenings are cooler. A layer helps after sunset.

What to pack

  • Rain jacket

  • A layer for cooler evenings

Where to stay in San Francisco

Dates are a starting point for March.

All hotels in San Francisco

Average weather in San Francisco

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

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FAQs about San Francisco

Climate averages for San Francisco, 1991–2020.

The best time to visit San Francisco is between May and October, the most comfortable stretch of the year on these averages.

September is the hottest month, with an average around 18°C.

December is the wettest month, with about 106 mm of rain.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.