All Countries
Port Sulphur, LA
Full City Profile · Louisiana · Plaquemines Parish County
2.8
/5.0
C+
Fair
1,529
Population
283/sq mi density
$54,342
Median Income
$20,927 per capita
$87,300
Home Value
$136,582 Zillow
70°F
Avg Temperature
317 sunny days/yr
236
Violent Crime/100K
2,801 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.2 / 5.0
$54,342 median income, 7.1% unemployment
A+
Affordability
5.0 / 5.0
$87,300 home value, /mo rent
F
Safety
1.0 / 5.0
236 violent crimes/100K
D
Education
1.9 / 5.0
10.8% bachelor's degree or higher
Port Sulphur enjoys a temperate climate with an average annual temperature of 70°F (21°C). Winters average 55°F in January while summers reach 83°F in July. The area gets 317 sunny days per year. Annual precipitation totals 63.9 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
55°F Jan (13°C)
83°F Jul (28°C)
| Annual Average | 69.9°F |
| 29% above US avg | |
| January Average | 55°F (13°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 317 days/yr |
Geography
| Elevation | -3 ft (-1 m) |
| Area | 8.5 sq mi (21.9 km²) |
| Population Density | 283/sq mi |
| Coordinates | 29.5045°N, 89.7220°W |
| Timezone | America/Chicago |
| County | Plaquemines Parish County |
| Nearest Airport | Louis Armstrong New Orleans International (MSY) 47 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 72.9 / 100 |
| Social Vulnerability | 59.5 / 100 |
| Community Resilience | 97.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| 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) | 5.0 in | Coldest |
| February | 56°F (13°C) | 5.3 in | |
| March | 62°F (16°C) | 5.0 in | |
| April | 68°F (20°C) | 4.1 in | |
| May | 75°F (24°C) | 5.0 in | |
| June | 80°F (27°C) | 4.8 in | |
| July | 83°F (28°C) | 6.8 in | Warmest, Wettest |
| August | 82°F (28°C) | 6.7 in | |
| September | 80°F (26°C) | 6.0 in | |
| October | 71°F (22°C) | 3.4 in | Driest |
| November | 63°F (17°C) | 4.5 in | |
| December | 57°F (14°C) | 5.2 in |
Port Sulphur has a seasonal temperature swing of 28°F / from 55°F in January to 83°F in July. Total annual precipitation is 61.6 inches, with July being the wettest month (6.8") and October the driest (3.4").