Air Quality in Hạ Long, Vietnam
Overcast
26.7°C · 91.0% humidity
26.7°
Feels 26.7°
50
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Hạ Long's air quality — share it
AQI Forecast
Calibrated
35
8am
35
35
50
11am
46
44
42
2pm
40
39
38
5pm
37
37
36
8pm
36
35
35
11pm
35
35
35
2am
35
35
18
5am
18
18
CAMS model
adj -48
83
83
83
83
83
84
84
84
84
84
84
84
83
83
83
83
83
83
83
83
83
66
66
66
Air Quality Index Trend
21h · 1 stnHạ Long's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. The worst conditions typically occur from February to April during the regional burning season.
91.0%
Humidity
21.4 km/h
Wind ENE
1003.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
12.0 µg/m³
PM10▲
79.9 µg/m³
050100150200300500
What is the weather forecast for Hạ Long?
Temperature & Precipitation
PM2.5 Trend
21h · 1 stationPM2.512.0 µg/m³
✓ WHO
Good
PM1079.9 µg/m³
Moderate
UV INDEX0.7
Low
Station readings (1 station within 25 km)
12.0
Median
12.0
Average
12.0
Low
12.0
High
PM2.5 µg/m³ · Model: 40.4 · Bias: +28.4
What is the 7-day forecast for Hạ Long?
08-03
32.9° 26.7°
2.5 mm
08-04
31.6° 25.8°
5.25 mm
08-05
33.9° 25.5°
7.44 mm
08-06
31.8° 25.1°
1.5 mm
08-07
33.4° 24.5°
5.63 mm
08-08
34.3° 26.6°
8.5 mm
08-09
37.2° 26.5°
8.25 mm
Both models agree
Avg diff: 2.8°C
Where are air quality stations near Hạ Long?
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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 2026-08-08T04:55 UTC.