24 – 30 Jun 2026 · Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

95.3Weekly mean modelled AQI · Moderate

Mean PM2.5: 25.8 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

-8 AQI compared with the previous week’s mean of 103.3.

Highest hourly estimate: 233 in Da Nang · 24 Jun, 18:00 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, 24 Jun	102.3Unhealthy for Sensitive Groups	41–233	28.7	192 / 192
Thu, 25 Jun	98.8Moderate	42–224	25.2	192 / 192
Fri, 26 Jun	94.6Moderate	47–220	26.9	192 / 192
Sat, 27 Jun	99.9Moderate	43–222	28.4	192 / 192
Sun, 28 Jun	99.6Moderate	40–223	26.3	192 / 192
Mon, 29 Jun	86.7Moderate	27–214	23	192 / 192
Tue, 30 Jun	84.9Moderate	29–217	21.8	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	96	91	88	85	85	85	85	85	86	86	86	89	93	96	104	118	129	137	139	134	126	120	112	101
Thu	93	88	88	87	86	85	85	84	83	82	82	82	86	88	94	106	120	129	132	131	127	120	112	104
Fri	95	88	83	80	81	81	81	81	81	82	82	84	87	88	92	103	114	122	126	124	119	111	100	90
Sat	86	85	87	88	89	89	90	90	90	90	89	89	94	96	98	108	119	127	130	128	122	113	103	99
Sun	97	94	91	88	86	86	86	85	85	85	85	88	91	92	96	107	120	129	133	132	126	116	102	92
Mon	87	83	81	80	79	78	77	75	75	75	75	78	80	80	88	96	104	108	109	107	102	94	87	84
Tue	82	80	78	77	76	76	76	77	76	76	77	76	81	82	86	90	96	102	104	103	100	95	89	85

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
Da Nang	140Unhealthy for Sensitive Groups	233	25.9	168 / 168
Hanoi	126.7Unhealthy for Sensitive Groups	211	42.5	168 / 168
Ho Chi Minh City	106.2Unhealthy for Sensitive Groups	135	37.6	168 / 168
Nha Trang	99.5Moderate	180	27.5	168 / 168
Hai Phong	97.5Moderate	201	24	168 / 168
Can Tho	81Moderate	101	24.9	168 / 168
Hue	68.3Moderate	115	16.1	168 / 168
Da Lat	43Good	56	7.4	168 / 168

City-hours by category

Good: 152

Moderate: 742

Unhealthy for Sensitive Groups: 300

Unhealthy: 97

Very Unhealthy: 53

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	96	91	88	85	85	85	85	85	86	86	86	89	93	96	104	118	129	137	139	134	126	120	112	101
Thu	93	88	88	87	86	85	85	84	83	82	82	82	86	88	94	106	120	129	132	131	127	120	112	104
Fri	95	88	83	80	81	81	81	81	81	82	82	84	87	88	92	103	114	122	126	124	119	111	100	90
Sat	86	85	87	88	89	89	90	90	90	90	89	89	94	96	98	108	119	127	130	128	122	113	103	99
Sun	97	94	91	88	86	86	86	85	85	85	85	88	91	92	96	107	120	129	133	132	126	116	102	92
Mon	87	83	81	80	79	78	77	75	75	75	75	78	80	80	88	96	104	108	109	107	102	94	87	84
Tue	82	80	78	77	76	76	76	77	76	76	77	76	81	82	86	90	96	102	104	103	100	95	89	85

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	96	91	88	85	85	85	85	85	86	86	86	89	93	96	104	118	129	137	139	134	126	120	112	101
Thu	93	88	88	87	86	85	85	84	83	82	82	82	86	88	94	106	120	129	132	131	127	120	112	104
Fri	95	88	83	80	81	81	81	81	81	82	82	84	87	88	92	103	114	122	126	124	119	111	100	90
Sat	86	85	87	88	89	89	90	90	90	90	89	89	94	96	98	108	119	127	130	128	122	113	103	99
Sun	97	94	91	88	86	86	86	85	85	85	85	88	91	92	96	107	120	129	133	132	126	116	102	92
Mon	87	83	81	80	79	78	77	75	75	75	75	78	80	80	88	96	104	108	109	107	102	94	87	84
Tue	82	80	78	77	76	76	76	77	76	76	77	76	81	82	86	90	96	102	104	103	100	95	89	85

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	96	91	88	85	85	85	85	85	86	86	86	89	93	96	104	118	129	137	139	134	126	120	112	101
Thu	93	88	88	87	86	85	85	84	83	82	82	82	86	88	94	106	120	129	132	131	127	120	112	104
Fri	95	88	83	80	81	81	81	81	81	82	82	84	87	88	92	103	114	122	126	124	119	111	100	90
Sat	86	85	87	88	89	89	90	90	90	90	89	89	94	96	98	108	119	127	130	128	122	113	103	99
Sun	97	94	91	88	86	86	86	85	85	85	85	88	91	92	96	107	120	129	133	132	126	116	102	92
Mon	87	83	81	80	79	78	77	75	75	75	75	78	80	80	88	96	104	108	109	107	102	94	87	84
Tue	82	80	78	77	76	76	76	77	76	76	77	76	81	82	86	90	96	102	104	103	100	95	89	85