3 – 9 Jul 2024 · Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

74.2Weekly mean modelled AQI · Moderate

Mean PM2.5: 18.6 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

+2.6 AQI compared with the previous week’s mean of 71.6.

Highest hourly estimate: 211 in Da Nang · 9 Jul, 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, 3 Jul	74.5Moderate	35–129	19.3	192 / 192
Thu, 4 Jul	70.7Moderate	44–123	18.9	192 / 192
Fri, 5 Jul	78.5Moderate	41–210	19.7	192 / 192
Sat, 6 Jul	77.2Moderate	50–195	17.8	192 / 192
Sun, 7 Jul	68.6Moderate	45–150	14.5	192 / 192
Mon, 8 Jul	67.5Moderate	37–152	18	192 / 192
Tue, 9 Jul	82.1Moderate	47–211	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	74	71	70	70	70	70	71	71	71	72	72	72	72	74	76	79	82	85	86	83	79	75	72	71
Thu	69	69	69	68	68	68	68	68	67	68	68	68	68	68	69	73	78	82	82	79	74	71	69	68
Fri	69	69	69	69	70	70	70	70	70	71	71	71	75	78	82	85	89	93	98	98	96	90	84	80
Sat	76	74	72	71	70	70	69	69	69	69	68	70	72	76	78	81	87	94	97	96	92	85	78	73
Sun	69	67	66	66	66	65	65	65	64	64	64	64	64	65	68	74	81	85	85	81	74	65	61	61
Mon	60	60	60	60	60	59	59	59	60	60	60	61	61	63	66	74	82	88	89	87	82	76	70	66
Tue	67	67	68	69	69	69	70	70	71	71	71	72	75	78	83	91	101	107	111	111	107	101	92	83

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	94.2Moderate	211	19.4	168 / 168
Ho Chi Minh City	89Moderate	104	29.7	168 / 168
Hanoi	88.2Moderate	188	24.5	168 / 168
Hue	87.4Moderate	150	22	168 / 168
Nha Trang	66Moderate	102	15	168 / 168
Can Tho	64.4Moderate	81	16.6	168 / 168
Hai Phong	56.6Moderate	70	12	168 / 168
Da Lat	47.5Good	57	9.4	168 / 168

City-hours by category

Good: 114

Moderate: 1108

Unhealthy for Sensitive Groups: 90

Unhealthy: 23

Very Unhealthy: 9

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	74	71	70	70	70	70	71	71	71	72	72	72	72	74	76	79	82	85	86	83	79	75	72	71
Thu	69	69	69	68	68	68	68	68	67	68	68	68	68	68	69	73	78	82	82	79	74	71	69	68
Fri	69	69	69	69	70	70	70	70	70	71	71	71	75	78	82	85	89	93	98	98	96	90	84	80
Sat	76	74	72	71	70	70	69	69	69	69	68	70	72	76	78	81	87	94	97	96	92	85	78	73
Sun	69	67	66	66	66	65	65	65	64	64	64	64	64	65	68	74	81	85	85	81	74	65	61	61
Mon	60	60	60	60	60	59	59	59	60	60	60	61	61	63	66	74	82	88	89	87	82	76	70	66
Tue	67	67	68	69	69	69	70	70	71	71	71	72	75	78	83	91	101	107	111	111	107	101	92	83

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	74	71	70	70	70	70	71	71	71	72	72	72	72	74	76	79	82	85	86	83	79	75	72	71
Thu	69	69	69	68	68	68	68	68	67	68	68	68	68	68	69	73	78	82	82	79	74	71	69	68
Fri	69	69	69	69	70	70	70	70	70	71	71	71	75	78	82	85	89	93	98	98	96	90	84	80
Sat	76	74	72	71	70	70	69	69	69	69	68	70	72	76	78	81	87	94	97	96	92	85	78	73
Sun	69	67	66	66	66	65	65	65	64	64	64	64	64	65	68	74	81	85	85	81	74	65	61	61
Mon	60	60	60	60	60	59	59	59	60	60	60	61	61	63	66	74	82	88	89	87	82	76	70	66
Tue	67	67	68	69	69	69	70	70	71	71	71	72	75	78	83	91	101	107	111	111	107	101	92	83

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	74	71	70	70	70	70	71	71	71	72	72	72	72	74	76	79	82	85	86	83	79	75	72	71
Thu	69	69	69	68	68	68	68	68	67	68	68	68	68	68	69	73	78	82	82	79	74	71	69	68
Fri	69	69	69	69	70	70	70	70	70	71	71	71	75	78	82	85	89	93	98	98	96	90	84	80
Sat	76	74	72	71	70	70	69	69	69	69	68	70	72	76	78	81	87	94	97	96	92	85	78	73
Sun	69	67	66	66	66	65	65	65	64	64	64	64	64	65	68	74	81	85	85	81	74	65	61	61
Mon	60	60	60	60	60	59	59	59	60	60	60	61	61	63	66	74	82	88	89	87	82	76	70	66
Tue	67	67	68	69	69	69	70	70	71	71	71	72	75	78	83	91	101	107	111	111	107	101	92	83