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Sebastopol, CA
Full City Profile · California · Sonoma County County
3.2
/5.0
B
Good
7,466
Population
3,971/sq mi density
$99,600
Median Income
$52,441 per capita
$821,400
Home Value
$1,053,924 Zillow
$1,767
Median Rent
28.1% income on rent
58°F
Avg Temperature
302 sunny days/yr
269
Violent Crime/100K
2,265 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$99,600 median income, 2.9% unemployment
C
Affordability
2.0 / 5.0
$821,400 home value, $1,767/mo rent
F
Safety
1.0 / 5.0
269 violent crimes/100K
A+
Education
5.0 / 5.0
51.7% bachelor's degree or higher
Sebastopol enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 48°F in January while summers reach 67°F in July. The area gets 302 sunny days per year. Annual precipitation totals 39.9 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
48°F Jan (9°C)
67°F Jul (19°C)
| Annual Average | 57.9°F |
| 7% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 67°F (19°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 103 ft (31 m) |
| Area | 1.9 sq mi (4.8 km²) |
| Population Density | 3,971/sq mi |
| Coordinates | 38.4000°N, 122.8276°W |
| Timezone | America/Los_Angeles |
| County | Sonoma County County |
| Nearest Airport | Metro Oakland International (OAK) 57 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0321 ppm |
| NO₂ (Nitrogen Dioxide) | 5.8 ppb |
| CO (Carbon Monoxide) | 0.29 ppm |
| PM2.5 (Fine Particles) | 5.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 99.1 / 100 |
| Social Vulnerability | 29.8 / 100 |
| Community Resilience | 66.2 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively High |
| Wildfire | Relatively High |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Very Low |
| Volcano | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
3 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 | 101 km |
| 1856 | N. CALIFORNIA | Eruption + Earthquake | 0.6 m | — | 110 km |
| 1906 | N. CALIFORNIA | Eruption + Earthquake | 0.1 m | — | 83 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Clear Lake (64 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 64 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 7.2 in | Wettest |
| February | 51°F (11°C) | 6.3 in | |
| March | 53°F (12°C) | 5.0 in | |
| April | 56°F (14°C) | 1.8 in | |
| May | 61°F (16°C) | 0.8 in | |
| June | 66°F (19°C) | 0.2 in | |
| July | 67°F (19°C) | 0.1 in | Driest |
| August | 68°F (20°C) | 0.1 in | Warmest |
| September | 67°F (19°C) | 0.5 in | |
| October | 62°F (16°C) | 2.0 in | |
| November | 53°F (12°C) | 5.0 in | |
| December | 47°F (9°C) | 5.3 in | Coldest |
Sebastopol has a seasonal temperature swing of 21°F / from 47°F in December to 68°F in August. Total annual precipitation is 34.2 inches, with January being the wettest month (7.2") and July the driest (0.1").