TODAY APR25
TEMPERATURE75
HUMIDITY54
PRESSURE101900
WIND COND.110 16.6
  • 7664Fri
  • 7864Sat
  • 7763Sun
  • 7963Mon
  • 8266Tue
daynightWeather update from Charleston Executive Airport at
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Weather Quick Facts

  • The highest monthly average temperature in James Island for July is 81.5 degrees
  • The lowest monthly average temperature in James Island for January is 49.6 degrees
  • The most monthly precipitation in James Island occurs in August with 8 inches
  • The air quality index in James Island is 10% better than the national average
  • The pollution index in James Island is 71% better than the national average

Compare James Island, SC Weather

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      James Island 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
      January38°F64°F50°F2.9"
      February39°F66°F51°F3.7"
      March45°F72°F58°F3.1"
      April53°F80°F66°F3.4"
      May62°F85°F73°F3.4"
      June70°F91°F79°F6.6"
      July73°F92°F82°F6.5"
      August73°F91°F81°F8.0"
      September68°F87°F76°F5.9"
      October56°F80°F67°F5.6"
      November45°F72°F57°F2.9"
      December42°F67°F53°F3.7"

      James Island 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.
      IndexJames IslandSouth CarolinaNational
      Air quality index383742
      Pollution index783,5893,620,4382,726,193

      James Island air quality information

      MeasurementTotal
      Days measured355
      Days with good air quality299
      Days with moderate air quality55
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      James Island air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.003%
      Mercury0.000%

      Average monthly James Island temperature with heat index

      James Island monthly precipitation with daily maximum

      James Island monthly snow depth with daily maximum

      James Island monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Hanahan, SC25,7433824.0%
      North Charleston, SC113,8803824.0%
      Isle of Palms, SC4,3713824.0%
      Rockville, SC1323824.0%
      Charleston, SC137,0413824.0%
      James Island, SC12,1573824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Laurel, FL12,1533824.0%
      Lewisburg, TN12,1503138.0%
      Lake City, FL12,1663824.0%
      Abbeville, LA12,1674118.0%
      Mendota, CA12,17350= 100
      James Island, SC12,1573824.0%
      Source: The James Island, SC 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.