Air Quality in Ma On Shan, Hong Kong

Rain
28.1°C · 85.0% humidity
28.1°
Feels 34.8°
56
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
37 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
67 6am
66
66
56 9am
59
73
74 12pm
75
76
77 3pm
77
77
66 6pm
66
78
78 9pm
78
78
78 12am
78
78
78 3am
78
66
Station readings
67
66
71
60
CAMS model adj +12
54
54
54
54
54
66
66
66
66
66
66
66
54
54
66
66
66
66
66
66
66
66
66
54
AD 728×90

Air Quality Index Trend

48h · 2 stn
85.0%
Humidity
13.5 km/h
Wind NNE
999.1 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
56
14.3 µg/m³
PM10
38
41.2 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.514.3 µg/m³ ✓ WHO
Moderate
PM1041.2 µg/m³
Good
UV INDEX10.9
Extreme
AD 300×250
14.3
Median
14.76
Average
5.0
Low
28.3
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +2.0
07-22
31.8° 26.4°
22.56 mm
07-23
34.2° 25.4°
16.37 mm
07-24
29.3° 26.5°
0.94 mm
07-25
33.2° 26.1°
0.25 mm
07-26
32.6° 25.7°
9.06 mm
07-27
30.2° 23.1°
16.88 mm
07-28
28.7° 26.3°
5.19 mm
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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 2026-07-22T01:51 UTC.