11 – 17 Jun 2025 · Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

95.7Weekly mean modelled AQI · Moderate

Mean PM2.5: 29.9 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

-5.8 AQI compared with the previous week’s mean of 101.5.

Highest hourly estimate: 245 in Da Nang · 16 Jun, 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, 11 Jun	85.1Moderate	25–160	25.6	192 / 192
Thu, 12 Jun	72.2Moderate	24–153	18	192 / 192
Fri, 13 Jun	63.9Moderate	22–110	21.4	192 / 192
Sat, 14 Jun	98.7Moderate	38–220	34.1	192 / 192
Sun, 15 Jun	116.3Unhealthy for Sensitive Groups	52–222	40	192 / 192
Mon, 16 Jun	122Unhealthy for Sensitive Groups	58–245	37.3	192 / 192
Tue, 17 Jun	112Unhealthy for Sensitive Groups	56–233	32.9	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	88	88	87	87	87	86	86	86	86	85	85	85	84	84	84	84	84	85	85	85	84	84	83	82
Thu	82	81	80	78	78	77	76	75	75	74	74	73	73	72	71	70	69	68	67	65	65	65	64	63
Fri	63	63	63	63	63	63	63	62	62	62	62	62	63	63	63	63	64	65	65	66	66	67	69	70
Sat	72	74	77	79	81	83	85	87	88	89	89	90	95	97	102	106	114	122	127	129	128	125	118	110
Sun	103	99	99	99	100	101	102	103	104	104	105	105	105	106	113	125	140	148	150	147	141	135	131	128
Mon	125	121	118	115	111	109	109	109	109	109	108	112	115	117	122	126	132	139	144	144	143	138	130	124
Tue	121	119	116	114	109	105	105	103	102	102	102	104	106	109	113	115	120	125	127	125	119	114	109	105

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	135.7Unhealthy for Sensitive Groups	195	51.9	168 / 168
Ho Chi Minh City	125.1Unhealthy for Sensitive Groups	159	45.8	168 / 168
Can Tho	123.1Unhealthy for Sensitive Groups	176	50.2	168 / 168
Da Nang	106.3Unhealthy for Sensitive Groups	245	20.2	168 / 168
Hai Phong	90.9Moderate	156	26.2	168 / 168
Nha Trang	78.9Moderate	156	21.4	168 / 168
Hue	62.3Moderate	149	14.1	168 / 168
Da Lat	43.4Good	63	9.3	168 / 168

City-hours by category

Good: 152

Moderate: 701

Unhealthy for Sensitive Groups: 202

Unhealthy: 258

Very Unhealthy: 31

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	88	88	87	87	87	86	86	86	86	85	85	85	84	84	84	84	84	85	85	85	84	84	83	82
Thu	82	81	80	78	78	77	76	75	75	74	74	73	73	72	71	70	69	68	67	65	65	65	64	63
Fri	63	63	63	63	63	63	63	62	62	62	62	62	63	63	63	63	64	65	65	66	66	67	69	70
Sat	72	74	77	79	81	83	85	87	88	89	89	90	95	97	102	106	114	122	127	129	128	125	118	110
Sun	103	99	99	99	100	101	102	103	104	104	105	105	105	106	113	125	140	148	150	147	141	135	131	128
Mon	125	121	118	115	111	109	109	109	109	109	108	112	115	117	122	126	132	139	144	144	143	138	130	124
Tue	121	119	116	114	109	105	105	103	102	102	102	104	106	109	113	115	120	125	127	125	119	114	109	105

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	88	88	87	87	87	86	86	86	86	85	85	85	84	84	84	84	84	85	85	85	84	84	83	82
Thu	82	81	80	78	78	77	76	75	75	74	74	73	73	72	71	70	69	68	67	65	65	65	64	63
Fri	63	63	63	63	63	63	63	62	62	62	62	62	63	63	63	63	64	65	65	66	66	67	69	70
Sat	72	74	77	79	81	83	85	87	88	89	89	90	95	97	102	106	114	122	127	129	128	125	118	110
Sun	103	99	99	99	100	101	102	103	104	104	105	105	105	106	113	125	140	148	150	147	141	135	131	128
Mon	125	121	118	115	111	109	109	109	109	109	108	112	115	117	122	126	132	139	144	144	143	138	130	124
Tue	121	119	116	114	109	105	105	103	102	102	102	104	106	109	113	115	120	125	127	125	119	114	109	105

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	88	88	87	87	87	86	86	86	86	85	85	85	84	84	84	84	84	85	85	85	84	84	83	82
Thu	82	81	80	78	78	77	76	75	75	74	74	73	73	72	71	70	69	68	67	65	65	65	64	63
Fri	63	63	63	63	63	63	63	62	62	62	62	62	63	63	63	63	64	65	65	66	66	67	69	70
Sat	72	74	77	79	81	83	85	87	88	89	89	90	95	97	102	106	114	122	127	129	128	125	118	110
Sun	103	99	99	99	100	101	102	103	104	104	105	105	105	106	113	125	140	148	150	147	141	135	131	128
Mon	125	121	118	115	111	109	109	109	109	109	108	112	115	117	122	126	132	139	144	144	143	138	130	124
Tue	121	119	116	114	109	105	105	103	102	102	102	104	106	109	113	115	120	125	127	125	119	114	109	105