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
39
10am
39
39
50
1pm
47
45
44
4pm
43
42
41
7pm
40
40
39
10pm
39
39
39
1am
39
39
39
4am
22
22
22
7am
10
10
CAMS model
adj -44
83
83
83
84
84
84
84
84
84
84
83
83
83
83
83
83
83
83
83
66
66
66
54
54
Air Quality Index Trend
13h · 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
13h · 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
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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 2026-08-08T06:34 UTC.