Air Quality in Choi Wan Estate (I & II), Hong Kong

Rain
31.8°C · 68.9% humidity
31.8°
Feels 38.5°
56
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
21 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
63 8am
58
57
56 11am
61
65
68 2pm
70
71
72 5pm
61
62
74 8pm
74
75
75 11pm
75
75
75 2am
75
75
63 5am
75
75
Station readings
71
58
57
CAMS model adj +9
54
54
54
66
66
66
66
66
66
66
54
54
66
66
66
66
66
66
66
66
66
54
66
66
AD 728×90

Air Quality Index Trend

47h · 2 stn
68.9%
Humidity
23.2 km/h
Wind SE
997.6 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
56
14.36 µg/m³
PM10
38
41.2 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.514.36 µg/m³ ✓ WHO
Moderate
PM1041.2 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
14.36
Median
14.47
Average
8.4
Low
21.1
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +2.0
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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 2026-07-22T03:03 UTC.