All Countries
Lake Nacimiento, CA
Full City Profile · California · San Luis Obispo County County
2.9
/5.0
C+
Fair
3,464
Population
330/sq mi density
$85,000
Median Income
$45,725 per capita
$475,700
Home Value
$650,927 Zillow
$1,971
Median Rent
29.8% income on rent
60°F
Avg Temperature
330 sunny days/yr
246
Violent Crime/100K
1,531 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$85,000 median income, 2.4% unemployment
B+
Affordability
3.5 / 5.0
$475,700 home value, $1,971/mo rent
F
Safety
1.0 / 5.0
246 violent crimes/100K
C+
Education
2.6 / 5.0
20.2% bachelor's degree or higher
Lake Nacimiento enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 48°F in January while summers reach 72°F in July. The area gets 330 sunny days per year. Annual precipitation totals 15.3 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)
72°F Jul (22°C)
| Annual Average | 59.7°F |
| 11% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 1,091 ft (333 m) |
| Area | 10.3 sq mi (26.7 km²) |
| Population Density | 330/sq mi |
| Coordinates | 35.7310°N, 120.8695°W |
| Timezone | America/Los_Angeles |
| County | San Luis Obispo County County |
| Nearest Airport | San Luis Obispo County Regional (SBP) 40 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0404 ppm |
| NO₂ (Nitrogen Dioxide) | 5.1 ppb |
| SO₂ (Sulfur Dioxide) | 0.39 ppb |
| PM2.5 (Fine Particles) | 4.9 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.9 / 100 |
| Social Vulnerability | 32.8 / 100 |
| Community Resilience | 93.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively High |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Drought | Very High |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Relatively Low |
| Tsunami | 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: 1.8 m (6 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1927 | S. CALIFORNIA | Earthquake | 1.8 m | — | 102 km |
| 1878 | S. CALIFORNIA | Meteorological | 1.0 m | 1 | 63 km |
| 1901 | MONTEREY BAY, N. CALIFORNIA | Eruption + Earthquake | — | — | 45 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 3.7 in | Wettest |
| February | 50°F (10°C) | 3.5 in | |
| March | 52°F (11°C) | 3.3 in | |
| April | 55°F (13°C) | 1.1 in | |
| May | 59°F (15°C) | 0.3 in | |
| June | 65°F (18°C) | 0.1 in | |
| July | 72°F (22°C) | 0.0 in | Warmest, Driest |
| August | 69°F (20°C) | 0.1 in | |
| September | 66°F (19°C) | 0.4 in | |
| October | 60°F (16°C) | 0.8 in | |
| November | 53°F (11°C) | 2.1 in | |
| December | 47°F (8°C) | 2.7 in | Coldest |
Lake Nacimiento has a seasonal temperature swing of 25°F / from 47°F in December to 72°F in July. Total annual precipitation is 18.1 inches, with January being the wettest month (3.7") and July the driest (0.0").