Air Quality in Hong Kong, Hong Kong

Rain
28.1°C · 85.0% humidity
28.1°
Feels 34.8°
63
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
15 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
62 5am
65
63
63 8am
65
66
67 11am
67
68
68 2pm
68
69
69 5pm
69
69
86 8pm
86
86
86 11pm
86
86
86 2am
69
69
Station readings
62
65
63
71
CAMS model adj +3
54
66
66
66
66
66
66
66
66
66
66
66
66
66
66
83
83
83
83
83
83
83
66
66
AD 728×90

Air Quality Index Trend

48h · 1 stn

Current PM2.5 concentration in Hong Kong is 1.2× the WHO 24-hour guideline of 15 µg/m³.

85.0%
Humidity
13.5 km/h
Wind NNE
999.1 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
63
17.58 µg/m³
PM10
38
41.2 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.517.58 µg/m³ ×1.2 WHO
Moderate
PM1041.2 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
17.58
Median
15.04
Average
6.0
Low
28.3
High
PM2.5 µg/m³ · Model: 19.2 · Bias: +1.6
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 2026-07-22T00:55 UTC.