TODAY NOV09
TEMPERATURE82
HUMIDITY79
PRESSURE101290
WIND COND.110 20.5
  • 7970Sun50%50%
  • 786930%20%
  • 7871Tue
  • 8169Wed
  • 7766Thu
daynightWeather update from New Orleans Naval Air Station - Alvin Callender Field at
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Weather Quick Facts

  • The highest monthly average temperature in Port Sulphur for August is 83.4 degrees
  • The lowest monthly average temperature in Port Sulphur for January is 54.4 degrees
  • The most monthly precipitation in Port Sulphur occurs in August with 8.5 inches
  • The air quality index in Port Sulphur is 7% worse than the national average
  • The pollution index in Port Sulphur is 42% worse than the national average

Compare Port Sulphur, LA Weather

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      Port Sulphur Average Temperature

      In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
      MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
      January48°F62°F54°F4.0"
      February49°F65°F56°F7.4"
      March54°F70°F61°F5.9"
      April62°F76°F69°F1.9"
      May70°F83°F76°F4.6"
      June76°F88°F82°F3.1"
      July78°F89°F83°F7.7"
      August78°F89°F83°F8.5"
      September76°F86°F81°F3.5"
      October67°F80°F73°F6.6"
      November56°F70°F63°F3.0"
      December52°F67°F59°F5.6"

      Port Sulphur air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexPort SulphurLouisianaNational
      Air quality index4510642
      Pollution index3,881,7302,526,4752,726,193

      Port Sulphur air quality

      MeasurementTotal
      Days measured365
      Days with good air quality229
      Days with moderate air quality134
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.040%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.000%

      Average monthly Port Sulphur temperature with heat index

      Port Sulphur monthly precipitation with daily maximum

      Port Sulphur monthly snow depth with daily maximum

      Port Sulphur monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Buras, LA8964510.0%
      Empire, LA1,1244510.0%
      Pointe a la Hache, LA3604510.0%
      Triumph, LA3204510.0%
      Port Sulphur, LA2,1744510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Ester, AK2,1743824.0%
      Earle, AR2,1744510.0%
      Lake Hamilton, AR2,1743824.0%
      Horse Shoe, NC2,1744412.0%
      Commercial Point, OH2,174468.0%
      Port Sulphur, LA2,1744510.0%
      Source: The Port Sulphur, LA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.