Nassau Bay, TX
Full City Profile · Texas · Harris County County
3.6
/5.0
B+
Good
5,211
Population
4,271/sq mi density
$78,057
Median Income
$55,943 per capita
$339,400
Home Value
$308,681 Zillow
$1,323
Median Rent
27.8% income on rent
71°F
Avg Temperature
496
Violent Crime/100K
1,249 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$78,057 median income, 1.3% unemployment
A
Affordability
4.2 / 5.0
$339,400 home value, $1,323/mo rent
F
Safety
1.0 / 5.0
496 violent crimes/100K (30% above avg)
A+
Education
4.7 / 5.0
46.4% bachelor's degree or higher
Nassau Bay has a warm climate with an average annual temperature of 71°F (22°C). Winters average 55°F in January while summers reach 85°F in July. Annual precipitation totals 53.3 inches. The area receives 0.2 inches of snow annually. Air quality is rated Moderate with a median AQI of 61.
Temperature
55°F Jan (13°C)
85°F Jul (29°C)
| Annual Average | 71.3°F |
| 32% above US avg | |
| January Average | 55°F (13°C) |
| July Average | 85°F (29°C) |
Geography
| Elevation | 11 ft (3 m) |
| Area | 1.2 sq mi (3.2 km²) |
| Population Density | 4,271/sq mi |
| Coordinates | 29.5448°N, 95.0874°W |
| Timezone | America/Chicago |
| County | Harris County County |
| Nearest Airport | William P Hobby (HOU) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 61.0 |
| Rating | Moderate |
| Good Days % | 13.7% |
| Unhealthy Days | 47 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0398 ppm |
| NO₂ (Nitrogen Dioxide) | 14.4 ppb |
| SO₂ (Sulfur Dioxide) | 0.25 ppb |
| CO (Carbon Monoxide) | 0.33 ppm |
| PM2.5 (Fine Particles) | 10.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.9 / 100 |
| Social Vulnerability | 67.9 / 100 |
| Community Resilience | 17.9 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Very High |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Very High |
| Hail | Relatively Moderate |
| Strong Wind | Very High |
| Heat Wave | Very High |
| Winter Weather | Relatively High |
| Lightning | Very High |
| Ice Storm | Very High |
| Drought | Relatively Moderate |
| Cold Wave | Very High |
| Landslide | Relatively Moderate |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 55°F (13°C) | 3.6 in | Coldest |
| February | 59°F (15°C) | 2.9 in | |
| March | 65°F (18°C) | 2.8 in | Driest |
| April | 71°F (21°C) | 3.7 in | |
| May | 78°F (25°C) | 5.1 in | |
| June | 83°F (29°C) | 5.2 in | |
| July | 85°F (29°C) | 4.2 in | |
| August | 85°F (30°C) | 5.6 in | Warmest |
| September | 81°F (27°C) | 5.4 in | |
| October | 73°F (23°C) | 5.8 in | Wettest |
| November | 64°F (18°C) | 4.2 in | |
| December | 57°F (14°C) | 4.7 in |
Nassau Bay has a seasonal temperature swing of 30°F / from 55°F in January to 85°F in August. Total annual precipitation is 53.3 inches, with October being the wettest month (5.8") and March the driest (2.8").