17 – 23 Jun 2026 · Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

103.3Weekly mean modelled AQI · Unhealthy for Sensitive Groups

Mean PM2.5: 29.7 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

-2.3 AQI compared with the previous week’s mean of 105.6.

Highest hourly estimate: 245 in Da Nang · 23 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, 17 Jun	103.8Unhealthy for Sensitive Groups	46–218	29.8	192 / 192
Thu, 18 Jun	97.2Moderate	40–216	27.2	192 / 192
Fri, 19 Jun	98.8Moderate	42–231	27.8	192 / 192
Sat, 20 Jun	104Unhealthy for Sensitive Groups	52–233	31.4	192 / 192
Sun, 21 Jun	105.5Unhealthy for Sensitive Groups	55–210	33	192 / 192
Mon, 22 Jun	111.5Unhealthy for Sensitive Groups	56–213	32.3	192 / 192
Tue, 23 Jun	102.4Unhealthy for Sensitive Groups	57–245	26.6	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	97	93	93	93	93	93	93	94	94	94	93	93	99	100	104	113	119	125	129	128	123	117	110	103
Thu	98	94	90	89	88	87	86	86	86	87	87	88	92	93	95	104	112	118	120	119	113	107	100	96
Fri	93	91	88	86	86	87	87	88	87	87	86	89	92	93	98	106	116	123	125	122	119	114	108	101
Sat	96	93	91	89	90	91	91	91	92	92	96	99	100	102	108	114	122	130	132	128	121	115	110	104
Sun	102	100	98	96	94	93	94	94	94	94	94	97	98	102	107	115	124	130	131	128	122	114	108	104
Mon	104	103	103	102	100	99	99	98	99	99	98	100	100	105	110	120	131	139	142	140	135	128	117	108
Tue	100	98	95	92	92	91	89	88	87	87	86	91	94	97	100	111	122	129	132	129	123	115	109	103

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	143.1Unhealthy for Sensitive Groups	245	26.2	168 / 168
Ho Chi Minh City	138.5Unhealthy for Sensitive Groups	168	51.8	168 / 168
Can Tho	124.8Unhealthy for Sensitive Groups	161	46.4	168 / 168
Hanoi	115.6Unhealthy for Sensitive Groups	177	39.5	168 / 168
Nha Trang	92.9Moderate	180	24.5	168 / 168
Hue	83.2Moderate	156	19.4	168 / 168
Hai Phong	75.4Moderate	163	18.7	168 / 168
Da Lat	53.1Moderate	74	11.1	168 / 168

City-hours by category

Good: 67

Moderate: 613

Unhealthy for Sensitive Groups: 466

Unhealthy: 154

Very Unhealthy: 44

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	97	93	93	93	93	93	93	94	94	94	93	93	99	100	104	113	119	125	129	128	123	117	110	103
Thu	98	94	90	89	88	87	86	86	86	87	87	88	92	93	95	104	112	118	120	119	113	107	100	96
Fri	93	91	88	86	86	87	87	88	87	87	86	89	92	93	98	106	116	123	125	122	119	114	108	101
Sat	96	93	91	89	90	91	91	91	92	92	96	99	100	102	108	114	122	130	132	128	121	115	110	104
Sun	102	100	98	96	94	93	94	94	94	94	94	97	98	102	107	115	124	130	131	128	122	114	108	104
Mon	104	103	103	102	100	99	99	98	99	99	98	100	100	105	110	120	131	139	142	140	135	128	117	108
Tue	100	98	95	92	92	91	89	88	87	87	86	91	94	97	100	111	122	129	132	129	123	115	109	103

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	97	93	93	93	93	93	93	94	94	94	93	93	99	100	104	113	119	125	129	128	123	117	110	103
Thu	98	94	90	89	88	87	86	86	86	87	87	88	92	93	95	104	112	118	120	119	113	107	100	96
Fri	93	91	88	86	86	87	87	88	87	87	86	89	92	93	98	106	116	123	125	122	119	114	108	101
Sat	96	93	91	89	90	91	91	91	92	92	96	99	100	102	108	114	122	130	132	128	121	115	110	104
Sun	102	100	98	96	94	93	94	94	94	94	94	97	98	102	107	115	124	130	131	128	122	114	108	104
Mon	104	103	103	102	100	99	99	98	99	99	98	100	100	105	110	120	131	139	142	140	135	128	117	108
Tue	100	98	95	92	92	91	89	88	87	87	86	91	94	97	100	111	122	129	132	129	123	115	109	103

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	97	93	93	93	93	93	93	94	94	94	93	93	99	100	104	113	119	125	129	128	123	117	110	103
Thu	98	94	90	89	88	87	86	86	86	87	87	88	92	93	95	104	112	118	120	119	113	107	100	96
Fri	93	91	88	86	86	87	87	88	87	87	86	89	92	93	98	106	116	123	125	122	119	114	108	101
Sat	96	93	91	89	90	91	91	91	92	92	96	99	100	102	108	114	122	130	132	128	121	115	110	104
Sun	102	100	98	96	94	93	94	94	94	94	94	97	98	102	107	115	124	130	131	128	122	114	108	104
Mon	104	103	103	102	100	99	99	98	99	99	98	100	100	105	110	120	131	139	142	140	135	128	117	108
Tue	100	98	95	92	92	91	89	88	87	87	86	91	94	97	100	111	122	129	132	129	123	115	109	103