Air Quality in Diamond Head / Kapahulu / Saint Louis Heights, United States

Drizzle
24.7°C · 77.4% humidity
24.7°
Feels 24.7°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
19 9am
19
19
13 12pm
15
17
16 3pm
17
17
18 6pm
18
18
19 9pm
19
19
21 12am
21
21
19 3am
19
19
19 6am
21
21
Station readings 24h ago
AQI 21
PM2.5 5.0 µg/m³ · 24h ago
AD 728×90

Air Quality Index Trend

32h · 2 stn

Diamond 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.

77.4%
Humidity
157.7 km/h
Wind ENE
1017.0 hPa
Pressure
29.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
13
3.22 µg/m³
PM10▲
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Diamond Head / Kapahulu / Saint Louis Heights?

Temperature & Precipitation

PM2.5 Trend

32h · 2 stations
PM2.53.22 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX29.9
Extreme
AD 300×250
Station readings (2 stations within 25 km)
3.22
Median
3.25
Average
3.1
Low
3.4
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +3.0

What is the 7-day forecast for Diamond Head / Kapahulu / Saint Louis Heights?

06-08
25.5° 23.8°
0.56 mm
06-09
24.7° 23.4°
0.5 mm
06-10
24.9° 23.6°
1.0 mm
06-11
25.1° 23.4°
0.19 mm
06-12
24.8° 23.6°
0.69 mm
06-13
24.9° 23.0°
0.88 mm
06-14
24.7° 23.9°
0.44 mm
Both models agree Avg diff: 0.7°C

Where are air quality stations near Diamond Head / Kapahulu / Saint Louis Heights?

38
Honolulu, Hawaii, USA
5.7 km PM2.5: 9.1 µg/m³
54
Sand Island, Hawaii, USA
6.9 km PM2.5: 13.5 µg/m³

What cities are near Diamond Head / Kapahulu / Saint Louis Heights?

13 Kaimukī 13 Waikīkī 13 Mō‘ili‘ili 13 McCully - Moiliili 13 Manoa 13 Makiki / Lower Punchbowl / Tantalus 13 Ala Moana - Kakaʻako 13 Honolulu 13 Kuliouou - Kalani Iki 13 Nuuanu - Punchbowl
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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 2026-06-08T22:16 UTC.