Air Quality in Hong Kong, Hong Kong

Rain
28.1°C · 85.0% humidity
28.1°
Feels 34.8°
64
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
22 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
63 7am
65
58
64 10am
65
65
65 1pm
65
65
65 4pm
65
65
65 7pm
82
82
82 10pm
82
82
82 1am
82
65
65 4am
65
65
Station readings
63
71
58
57
CAMS model adj -1
66
66
66
66
66
66
66
66
66
66
66
66
66
83
83
83
83
83
83
83
66
66
66
66
AD 728×90

Air Quality Index Trend

48h · 2 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
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
64
18.28 µg/m³
PM10
38
41.2 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.518.28 µg/m³ ×1.2 WHO
Moderate
PM1041.2 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
18.28
Median
14.09
Average
8.4
Low
21.1
High
PM2.5 µg/m³ · Model: 16.35 · Bias: -1.9
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 2026-07-22T02:59 UTC.