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San Castle, FL
Full City Profile · Florida · Palm Beach County County
2.6
/5.0
C+
Fair
3,159
Population
7,521/sq mi density
$51,615
Median Income
$24,476 per capita
$256,400
Home Value
$300,212 Zillow
$1,589
Median Rent
51.0% income on rent
76°F
Avg Temperature
330 sunny days/yr
112
Violent Crime/100K
1,422 property/100K
C+
Overall
2.6 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Economy
2.6 / 5.0
$51,615 median income, 4.3% unemployment
B+
Affordability
3.9 / 5.0
$256,400 home value, $1,589/mo rent
F
Safety
1.0 / 5.0
112 violent crimes/100K
C+
Education
2.7 / 5.0
21.7% bachelor's degree or higher
San Castle has a warm climate with an average annual temperature of 76°F (24°C). Winters average 66°F in January while summers reach 83°F in July. The area gets 330 sunny days per year. Annual precipitation totals 61.8 inches. Air quality is rated Good with a median AQI of 41.
Temperature
66°F Jan (19°C)
83°F Jul (28°C)
| Annual Average | 75.8°F |
| 40% above US avg | |
| January Average | 66°F (19°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 21 ft (6 m) |
| Area | 0.4 sq mi (1.1 km²) |
| Population Density | 7,521/sq mi |
| Coordinates | 26.5651°N, 80.0611°W |
| Timezone | America/New_York |
| County | Palm Beach County County |
| Nearest Airport | Palm Beach International (PBI) 8 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0375 ppm |
| PM2.5 (Fine Particles) | 6.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 99.2 / 100 |
| Social Vulnerability | 59.8 / 100 |
| Community Resilience | 24.5 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very High |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | No Rating |
| Lightning | Very High |
| Drought | Relatively High |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 66°F (19°C) | 2.8 in | Coldest |
| February | 67°F (19°C) | 2.7 in | |
| March | 70°F (21°C) | 3.5 in | |
| April | 74°F (23°C) | 2.9 in | |
| May | 78°F (25°C) | 6.0 in | |
| June | 81°F (27°C) | 8.1 in | |
| July | 83°F (28°C) | 6.3 in | Warmest |
| August | 83°F (28°C) | 6.3 in | |
| September | 82°F (28°C) | 8.3 in | Wettest |
| October | 78°F (26°C) | 6.3 in | |
| November | 73°F (23°C) | 4.3 in | |
| December | 69°F (20°C) | 2.4 in | Driest |
San Castle has a seasonal temperature swing of 17°F / from 66°F in January to 83°F in July. Total annual precipitation is 59.8 inches, with September being the wettest month (8.3") and December the driest (2.4").