Air Quality in Diamond Head / Kapahulu / Saint Louis Heights, United States
Drizzle
24.9°C · 67.6% humidity
24.9°
Feels 24.9°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Diamond Head / Kapahulu / Saint Louis Heights's air quality — share it
AQI Forecast
27
7am
27
27
20
10am
22
23
24
1pm
25
26
26
4pm
24
25
25
7pm
25
25
25
10pm
27
27
27
1am
27
25
25
4am
25
25
Air Quality Index Trend
41h · 2 stnDiamond Head / Kapahulu / Saint Louis Heights's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
67.6%
Humidity
118.0 km/h
Wind ENE
1016.1 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.69 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Diamond Head / Kapahulu / Saint Louis Heights?
Temperature & Precipitation
PM2.5 Trend
41h · 2 stationsPM2.54.69 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX19.9
Extreme
Station readings (2 stations within 25 km)
4.69
Median
5.05
Average
3.1
Low
7.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.6
What is the 7-day forecast for Diamond Head / Kapahulu / Saint Louis Heights?
07-21
26.6° 24.2°
0.56 mm
07-22
25.7° 24.4°
0.38 mm
07-23
25.4° 24.4°
1.19 mm
07-24
25.6° 24.3°
1.31 mm
07-25
25.5° 24.2°
0.75 mm
07-26
26.0° 24.4°
1.31 mm
07-27
26.3° 24.2°
0.75 mm
Both models agree
Avg diff: 0.8°C
Where are air quality stations near Diamond Head / Kapahulu / Saint Louis Heights?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T20:08 UTC.