For more information about National Park Service air resources, please visit http://www.nature.nps.gov/air/.


Hawai'i Volcanoes National Park

  • View of Halema'uma'u Crater
    Looking Southwest
  • Air Data
    & Weather
  • NPS Air
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Health Advisories
Visit the Current Conditions Website to find out about current conditions and the health advisory level. Short term exposure to high levels of sulfur dioxide (SO2) and particulate matter (PM2.5) can be harmful to human health at Hawai'i Volcanoes NP. These conditions occur naturally as a result of ongoing volcanic activity. USGS and NPS equiptment measures air quality in numerous locations around the park. Data from all of these these locations are used to create the advisory level. Specific information from two monitoring sites is presented below.

AQI Sulfur Dioxide



Air Pollution Data
Visitor Center updated 09/01/2015 04:00 PM HST
Pollutant Measurement Current Today's
Maximum
Yesterday's
Maximum
SO2 15-minute average 0.037 ppm 0.037 ppm 0.037 ppm
SO2 1-hour average 0.031 ppm 0.81 ppm 0.11 ppm
PM2.5 24-hour average unavailable unavailable
PM2.5 1-hour average unavailable unavailable  unavailable

Jaggar Museum  updated 9/1/2015 4:00:00 PM
Pollutant Measurement Current Today's
Maximum
Yesterday's
Maximum
SO2 15-minute average 0.037 ppm 0.289 ppm 0.022 ppm
SO2 1-hour average 0.049 ppm 0.191 ppm 0.032 ppm
PM2.5 24-hour average 24.2 μg/m3 19.8 μg/m3
PM2.5 1-hour average 21.7 μg/m3 21.7 μg/m3 13.2 μg/m3

*Sulfur Dioxide (SO2) is measured in parts per million (ppm)
**Particulate Matter (PM2.5) is measured in micrograms per cubic meter (μg/m3)




Weather updated 09/01/2015 04:00 PM HST

Parameter Visitor Center Jaggar Museum
Current temperature  69 F   68 F 
Yesterday's minimum temperature  60 F   64 F 
Yesterday's maximum temperature  78 F   80 F 
Current relative humidity  88 %   92 % 
Yesterday's minimum relative humidity  61 %   55 % 
Yesterday's maximum relative humidity  99 %   98 % 
Current wind speed  2 mph    3 mph 
Current wind direction E E
Current solar radiation 10 watts/m 2 unavailable
Precipitation in last hour  0.08 in.   1.00 in. 
Precipitation since midnight  0.00 in.   0.00 in. 
Yesterday's precipitation  0.39 in.   2.80 in. 

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Current Air Quality »
Park wide advisory
Sulfur Dioxide - SO2
updated 09/01/2015 04:00 PM HST
The Sulfur Dioxide Alert Level is: 1 air quality index (AQI) for Sulfur Dioxide and Particulate Matter from good to hazardous The Particulate Matter Alert Level is: 1
Particulate Matter - PM2.5
updated 09/01/2015 04:00 PM HST
  • See more air data »
  • Current Weather »
    at the Visitor Center
    updated 09/01/2015 04:00 PM HST
    Temperature
    69 F

    Humidity
    88 %

    Wind
    E-2 mph

    Precipitation - 1 hr
    0.08 in.

  • See more weather data »
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