Monthly climate guide
San Francisco weather in March
With highs near 16°C (60°F) and lows around 8°C (47°F), March feels mild in San Francisco. Rainfall averages about 98 mm (wet) and the sky is often cloudy. Daytime highs are about the same as February and 2°C cooler than April.
What stands out in March
- Just 120 km apart, but San Francisco runs about 2°C cooler than Sacramento this month.
- Check the hourly forecast before heading to Golden Gate Bridge — showers are likely.
- Rain is above San Francisco's usual level, by about 124%.
- Seasonally, March counts as early spring in San Francisco.
It's usually the wettest month of the year.
Avg high
16°C
60°F
Avg low
8°C
47°F
Rainfall
98 mm
wet
Humidity
82%
relative
Sky
61%
cloud · often cloudy
San Francisco weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 14°C / 57°F | 7°C / 44°F | 96 mm | 83% | 59% |
| February | 15°C / 59°F | 7°C / 45°F | 90 mm | 80% | 54% |
| March | 16°C / 60°F | 8°C / 47°F | 98 mm | 82% | 61% |
| April | 18°C / 64°F | 9°C / 48°F | 35 mm | 79% | 53% |
| May | 19°C / 66°F | 10°C / 50°F | 15 mm | 77% | 54% |
| June | 22°C / 72°F | 12°C / 53°F | 9 mm | 73% | 45% |
| July | 22°C / 72°F | 12°C / 54°F | 1 mm | 74% | 56% |
| August | 23°C / 74°F | 13°C / 55°F | 1 mm | 75% | 60% |
| September | 24°C / 76°F | 13°C / 56°F | 4 mm | 71% | 46% |
| October | 23°C / 73°F | 12°C / 54°F | 22 mm | 67% | 41% |
| November | 18°C / 64°F | 9°C / 48°F | 59 mm | 75% | 47% |
| December | 14°C / 57°F | 7°C / 44°F | 95 mm | 79% | 53% |
What to pack for March
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is March a good time to visit San Francisco?
Our San Francisco guide recommends: September to November, when fog is less frequent and temperatures are at their warmest — summer here can be surprisingly cool and foggy.
Bring layers even in summer — Mark Twain's famous (if apocryphal) line about a cold San Francisco summer is closer to true than visitors expect.
Best time to visit San Francisco →Other United States cities in March
Cite or embed this data
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San Francisco weather in March. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/san-francisco/march
<a href="https://weathercompare.eu/weather/usa/san-francisco/march">San Francisco weather in March</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/san-francisco" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="San Francisco weather in March"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/san-francisco/march">San Francisco weather in March</a> – WeatherCompare</p>
San Francisco in March: quick answers
Is March a good time to visit San Francisco?
March is one of the wetter months in San Francisco, with about 98 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is San Francisco in March?
Average highs are about 16°C (60°F) and average lows about 8°C (47°F), based on 10 years of daily data.
Does it rain a lot in San Francisco in March?
San Francisco typically gets around 98 mm of rain in March — wet. It's usually the wettest month of the year.
When is the best time to visit San Francisco?
September to November, when fog is less frequent and temperatures are at their warmest — summer here can be surprisingly cool and foggy.
Figures are long-term averages for the area around San Francisco (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.