8 – 14 Jul 2026 · Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

Modelled US AQI · 8 cities · CAMS via Open-Meteo

80.4Weekly mean modelled AQI · Moderate

Mean PM2.5: 23.8 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

+3.4 AQI compared with the previous week’s mean of 77.

Highest hourly estimate: 212 in Hanoi · 10 Jul, 19:00 GMT+7.

1344 of 1344 city-hours have a modelled AQI. These are estimates for roughly 45 km model grid cells, not monitoring-station measurements. How this report is made

Daily modelled US AQI

Day	Mean AQI	Low–high	Mean PM2.5 (µg/m³)	City-hours
Wed, 8 Jul	83.1Moderate	27–146	22.8	192 / 192
Thu, 9 Jul	74.1Moderate	36–140	21.3	192 / 192
Fri, 10 Jul	78.9Moderate	31–212	25.5	192 / 192
Sat, 11 Jul	85Moderate	28–210	23.3	192 / 192
Sun, 12 Jul	80Moderate	22–211	24.1	192 / 192
Mon, 13 Jul	82.7Moderate	17–208	25.8	192 / 192
Tue, 14 Jul	78.8Moderate	20–204	23.8	192 / 192

Hourly means (UTC+7)

Each cell averages the selected cities’ modelled AQI for that hour.

Day	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	81	81	81	81	81	81	80	80	80	79	79	79	78	78	77	81	87	94	97	97	93	88	83	80
Thu	77	76	75	75	74	74	73	72	72	72	71	71	71	71	71	72	78	82	82	79	75	74	72	72
Fri	73	74	75	76	76	76	77	77	77	77	78	78	78	78	79	79	79	84	86	86	85	84	82	79
Sat	79	79	79	79	78	77	77	76	76	76	76	76	76	76	78	83	91	102	108	109	106	101	94	86
Sun	80	76	75	76	76	77	78	78	78	78	78	78	78	78	77	80	85	88	89	88	85	84	81	80
Mon	79	78	77	77	77	77	77	77	78	78	79	79	79	80	81	85	92	96	97	97	95	90	84	80
Tue	80	79	78	78	77	77	77	76	76	75	75	74	74	74	74	74	76	85	90	92	90	86	80	77

Cities by modelled US AQI

Sorted by weekly mean. Each city is a single model grid cell near its centre.

City	Mean AQI	Peak AQI	Mean PM2.5 (µg/m³)	Hours
Hanoi	153.4Unhealthy	212	59.9	168 / 168
Hai Phong	94.5Moderate	160	31.2	168 / 168
Ho Chi Minh City	89.8Moderate	123	28.6	168 / 168
Nha Trang	78.3Moderate	126	21.2	168 / 168
Can Tho	71.9Moderate	97	19.8	168 / 168
Da Nang	70.8Moderate	179	12.9	168 / 168
Hue	51.5Moderate	66	11.3	168 / 168
Da Lat	32.8Good	57	5.5	168 / 168

City-hours by category

Good: 218

Moderate: 831

Unhealthy for Sensitive Groups: 167

Unhealthy: 109

Very Unhealthy: 19

Hazardous: 0

US AQI scale
AQI	Category
0–50	Good
51–100	Moderate
101–150	Unhealthy for Sensitive Groups
151–200	Unhealthy
201–300	Very Unhealthy
301+	Hazardous

How this report is made

Open-Meteo provides hourly estimates from the Copernicus Atmosphere Monitoring Service (CAMS) global model at roughly 45 km resolution. We use the grid cell nearest each city’s centre. Nearby places may share a cell, and local pollution can differ.

The AQI is the provider’s modelled US AQI across pollutants, one value per city per hour. Weekly, daily and hourly means average those values across the selected cities. PM2.5 is a concentration in µg/m³. These figures use a different basis from the measured PM2.5-derived AQI in the Malaysia and Singapore reports.

Days and hours use UTC+7. The report includes past model hours only, never forecasts. The previous-week comparison appears only when at least 90% of that week’s city-hours are available.

For official local readings and advice, visit Centre for Environmental Monitoring. Air-quality data: Open-Meteo and CAMS, licensed under CC BY 4.0. Haze Monitor is independent of these providers and local authorities.

Day	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	81	81	81	81	81	81	80	80	80	79	79	79	78	78	77	81	87	94	97	97	93	88	83	80
Thu	77	76	75	75	74	74	73	72	72	72	71	71	71	71	71	72	78	82	82	79	75	74	72	72
Fri	73	74	75	76	76	76	77	77	77	77	78	78	78	78	79	79	79	84	86	86	85	84	82	79
Sat	79	79	79	79	78	77	77	76	76	76	76	76	76	76	78	83	91	102	108	109	106	101	94	86
Sun	80	76	75	76	76	77	78	78	78	78	78	78	78	78	77	80	85	88	89	88	85	84	81	80
Mon	79	78	77	77	77	77	77	77	78	78	79	79	79	80	81	85	92	96	97	97	95	90	84	80
Tue	80	79	78	78	77	77	77	76	76	75	75	74	74	74	74	74	76	85	90	92	90	86	80	77

Day	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	81	81	81	81	81	81	80	80	80	79	79	79	78	78	77	81	87	94	97	97	93	88	83	80
Thu	77	76	75	75	74	74	73	72	72	72	71	71	71	71	71	72	78	82	82	79	75	74	72	72
Fri	73	74	75	76	76	76	77	77	77	77	78	78	78	78	79	79	79	84	86	86	85	84	82	79
Sat	79	79	79	79	78	77	77	76	76	76	76	76	76	76	78	83	91	102	108	109	106	101	94	86
Sun	80	76	75	76	76	77	78	78	78	78	78	78	78	78	77	80	85	88	89	88	85	84	81	80
Mon	79	78	77	77	77	77	77	77	78	78	79	79	79	80	81	85	92	96	97	97	95	90	84	80
Tue	80	79	78	78	77	77	77	76	76	75	75	74	74	74	74	74	76	85	90	92	90	86	80	77

Day	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	81	81	81	81	81	81	80	80	80	79	79	79	78	78	77	81	87	94	97	97	93	88	83	80
Thu	77	76	75	75	74	74	73	72	72	72	71	71	71	71	71	72	78	82	82	79	75	74	72	72
Fri	73	74	75	76	76	76	77	77	77	77	78	78	78	78	79	79	79	84	86	86	85	84	82	79
Sat	79	79	79	79	78	77	77	76	76	76	76	76	76	76	78	83	91	102	108	109	106	101	94	86
Sun	80	76	75	76	76	77	78	78	78	78	78	78	78	78	77	80	85	88	89	88	85	84	81	80
Mon	79	78	77	77	77	77	77	77	78	78	79	79	79	80	81	85	92	96	97	97	95	90	84	80
Tue	80	79	78	78	77	77	77	76	76	75	75	74	74	74	74	74	76	85	90	92	90	86	80	77