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San Francisco, CA
Full City Profile · California · San Francisco County County
3.0
/5.0
B
Good
836,321
Population
17,912/sq mi density
$141,446
Median Income
$90,285 per capita
$1,380,500
Home Value
$1,299,230 Zillow
$2,419
Median Rent
24.4% income on rent
59°F
Avg Temperature
322 sunny days/yr
670
Violent Crime/100K
5,506 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$141,446 median income, 3.9% unemployment
F
Affordability
1.1 / 5.0
$1,380,500 home value, $2,419/mo rent
F
Safety
1.0 / 5.0
670 violent crimes/100K (76% above avg)
A+
Education
5.0 / 5.0
60.1% bachelor's degree or higher
San Francisco enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 53°F in January while summers reach 67°F in July. The area gets 322 sunny days per year. Annual precipitation totals 29.7 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 33.
Temperature
53°F Jan (12°C)
67°F Jul (20°C)
| Annual Average | 58.5°F |
| 8% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 322 days/yr |
Geography
| Area | 231.9 sq mi (600.6 km²) |
| Population Density | 17,912/sq mi |
| Coordinates | 37.7272°N, 123.0322°W |
| Timezone | America/Los_Angeles |
| County | San Francisco County County |
| Nearest Airport | San Francisco International (SFO) 37 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 33.0 |
| Rating | Good |
| Good Days % | 76.1% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0291 ppm |
| NO₂ (Nitrogen Dioxide) | 11.4 ppb |
| CO (Carbon Monoxide) | 0.25 ppm |
| PM2.5 (Fine Particles) | 6.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.5 / 100 |
| Social Vulnerability | 48.1 / 100 |
| Community Resilience | 99.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Very High |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Relatively Moderate |
| Volcano | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1868 | N. CALIFORNIA | Eruption + Earthquake | 4.5 m | 30 | 82 km |
| 1989 | N. CALIFORNIA | Earthquake | 1.0 m | 62 | 127 km |
| 1856 | N. CALIFORNIA | Eruption + Earthquake | 0.6 m | - | 69 km |
| 1906 | N. CALIFORNIA | Eruption + Earthquake | 0.1 m | - | 47 km |
| 1865 | N. CALIFORNIA | Eruption + Earthquake | - | - | 116 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Clear Lake (140 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 140 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 8.8 in | Wettest |
| February | 51°F (11°C) | 7.3 in | |
| March | 52°F (11°C) | 6.2 in | |
| April | 54°F (12°C) | 2.5 in | |
| May | 57°F (14°C) | 0.9 in | |
| June | 61°F (16°C) | 0.3 in | |
| July | 67°F (20°C) | 0.1 in | Warmest, Driest |
| August | 64°F (18°C) | 0.2 in | |
| September | 64°F (18°C) | 0.5 in | |
| October | 61°F (16°C) | 2.4 in | |
| November | 54°F (12°C) | 6.2 in | |
| December | 49°F (9°C) | 7.4 in | Coldest |
San Francisco has a seasonal temperature swing of 18°F / from 49°F in December to 67°F in July. Total annual precipitation is 42.8 inches, with January being the wettest month (8.8") and July the driest (0.1").