Air Quality in Hạ Long, Vietnam
Drizzle
27.3°C · 91.1% humidity
27.3°
Feels 34.3°
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations
Nearby Monitoring Stations
Hạ Long's air quality — share it
AQI Forecast
54
1am
54
34
53
4am
48
37
34
7am
32
31
37
10am
36
35
55
1pm
55
34
34
4pm
34
34
34
7pm
27
27
27
10pm
34
34
Air Quality Index Trend
46h · 2 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.
91.1%
Humidity
19.0 km/h
Wind WNW
998.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
12.9 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Hạ Long?
Temperature & Precipitation
PM2.5 Trend
46h · 2 stationsPM2.512.9 µg/m³
✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
12.9
Median
12.9
Average
11.8
Low
14.0
High
PM2.5 µg/m³ · Model: 13.7 · Bias: +0.8
What is the 7-day forecast for Hạ Long?
07-21
33.3° 26.5°
7.06 mm
07-22
31.5° 25.2°
4.75 mm
07-23
28.5° 26.4°
6.5 mm
07-24
34.0° 26.7°
0.19 mm
07-25
30.6° 24.5°
7.37 mm
07-26
30.7° 26.3°
11.56 mm
07-27
28.3° 25.0°
52.94 mm
Both models agree
Avg diff: 2.4°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 2026-07-21T21:33 UTC.