TODAY APR18
TEMPERATURE77
HUMIDITY64
PRESSURE101930
WIND COND.100 13
  • 8171Fri
  • 8172Sat
  • 8273Sun
  • 8171Mon
  • 8272Tue
daynightWeather update from Naples, Naples Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Port Royal for August is 82.7 degrees
  • The lowest monthly average temperature in Port Royal for January is 65.1 degrees
  • The most monthly precipitation in Port Royal occurs in August with 9.3 inches
  • The air quality index in Port Royal is 19% better than the national average
  • The pollution index in Port Royal is 1024% worse than the national average

Compare Naples, FL Weather

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      Port Royal 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
      January56°F76°F65°F1.5"
      February57°F77°F66°F1.5"
      March60°F80°F70°F1.3"
      April65°F85°F75°F2.4"
      May70°F88°F78°F2.4"
      June74°F90°F81°F8.1"
      July76°F91°F82°F7.8"
      August76°F91°F83°F9.3"
      September75°F90°F81°F7.8"
      October70°F87°F78°F4.1"
      November63°F82°F71°F0.9"
      December60°F79°F68°F1.2"

      Port Royal 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 RoyalNaplesFlorida
      Air quality index343435
      Pollution index30,648,30030,648,3007,570,785

      Port Royal air quality information

      MeasurementTotal
      Days measured362
      Days with good air quality331
      Days with moderate air quality31
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Port Royal air quality information

      PollutantTotal
      Arsenic0.040%
      Benzene0.370%
      Carbon Tetrachloride0.080%
      Lead0.150%
      Mercury0.030%

      Average monthly Port Royal temperature with heat index

      Port Royal monthly precipitation with daily maximum

      Port Royal monthly snow depth with daily maximum

      Port Royal monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Goodland, FL2173432.0%
      Marco Island, FL17,9633432.0%
      Vineyards, FL3,4073432.0%
      Island Walk, FL2,8023432.0%
      Naples Manor, FL6,3913432.0%
      Naples, FL21,7503432.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lino Lakes, MN21,748468.0%
      Del City, OK21,762484.0%
      Red Deer County, AB21,767n/a 
      Pascagoula, MS21,7323236.0%
      Squamish, BC21,730n/a 
      Naples, FL21,7503432.0%
      Source: The Port Royal, Naples, FL 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.