Air Quality in San Tin, Hong Kong

Rain
28.3°C · 83.5% humidity
28.3°
Feels 34.9°
70
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
25 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
72 3am
70
70
70 6am
72
73
74 9am
74
75
75 12pm
75
76
76 3pm
76
76
76 6pm
76
93
93 9pm
93
93
93 12am
93
93
Station readings
72
70
70
CAMS model adj +10
66
54
54
66
66
66
66
66
66
66
66
66
66
66
66
66
66
83
83
83
83
83
83
83
AD 728×90

Air Quality Index Trend

47h · 2 stn

Current PM2.5 concentration in San Tin is 1.4× the WHO 24-hour guideline of 15 µg/m³.

83.5%
Humidity
18.4 km/h
Wind NNE
998.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
70
21.16 µg/m³
PM10
44
48.05 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.521.16 µg/m³ ×1.4 WHO
Moderate
PM1048.05 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
21.16
Median
19.47
Average
8.6
Low
46.9
High
PM2.5 µg/m³ · Model: 23.15 · Bias: +2.0
07-21
30.0° 28.3°
10.0 mm
07-22
31.7° 27.2°
16.81 mm
07-23
32.8° 27.8°
6.06 mm
07-24
29.1° 27.8°
2.88 mm
07-25
30.2° 27.5°
0.69 mm
07-26
30.6° 25.8°
14.56 mm
07-27
30.2° 24.7°
8.5 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 2026-07-21T22:06 UTC.