San Francisco Weather in March
United States · Mediterranean climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
March in San Francisco sees average temperatures ranging from a low of 8.6°C (47.5°F) to a high of 13.9°C (57.0°F), with a mean of 11.1°C (52.0°F). Compared to the annual average of 13.5°C (56.3°F), this month is 2.4°C cooler than the yearly norm. Precipitation averages 95.7mm, making it approximately 47.0mm wetter than the monthly average of 49.0mm. The city receives an average of 9.5 hours of sunshine per day during March, with relative humidity averaging 77.7%. Wind speeds reach an average maximum of 28.3 km/h. For travelers, this month offers a temperature experience in San Francisco, with wetter-than-average conditions compared to the rest of the year.
If you're planning outdoor activities in San Francisco, ignore the season — focus on the hour. I hiked Lands End in July at 2pm in a t-shirt and was shivering by 4pm when the fog rolled in. The 5°C temperature swing between coast and bay is real. Best running conditions: September-October, when the marine layer retreats and 22°C hits the city. Pack a windbreaker for any coastal trail, year-round. Marin Headlands is magnificent but windy; aim for 10am-2pm. February-March brings surprisingly green hills and empty trails — my favorite hiking window.
March vs Adjacent Months
| Metric | February | March | April |
|---|---|---|---|
| Mean Temp | 10.7°C (51.3°F) | 11.1°C (52.0°F) | 12.1°C (53.8°F) |
| Rainfall | 60.8mm | 95.7mm | 23.0mm |
| Sunshine | 9.1 hrs | 9.5 hrs | 11.7 hrs |
| Humidity | 77.6% | 77.7% | 78.4% |
| Wind | 24.9 km/h | 28.3 km/h | 30.4 km/h |
| Rainy Days | 8.0 | 12.8 | 4.4 |
Seasonal Context
March falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting San Francisco in March, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in San Francisco in March?
The average temperature in San Francisco during March ranges from 8.6°C (47.5°F) to 13.9°C (57.0°F), with a mean of 11.1°C (52.0°F).
How much does it rain in San Francisco in March?
San Francisco receives an average of 95.7mm of precipitation in March, spread across approximately 12.8 rainy days.
What should I pack for San Francisco in March?
Based on March weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is March a good time to visit San Francisco?
March is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for San Francisco
Cities with Similar March Climate (Mediterranean)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 37.77°, -122.42°. Timezone: America/Los_Angeles. Last updated: 2026-07-30.