10 – 16 Jul 2024 · Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

66.8Weekly mean modelled AQI · Moderate

Mean PM2.5: 14.9 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

-7.4 AQI compared with the previous week’s mean of 74.2.

Highest hourly estimate: 228 in Da Nang · 10 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, 10 Jul	82.9Moderate	49–228	18.7	192 / 192
Thu, 11 Jul	76.9Moderate	40–207	16.8	192 / 192
Fri, 12 Jul	73Moderate	26–224	16.4	192 / 192
Sat, 13 Jul	71.1Moderate	17–215	15.8	192 / 192
Sun, 14 Jul	56.4Moderate	18–89	11.6	192 / 192
Mon, 15 Jul	51.7Moderate	15–87	11.8	192 / 192
Tue, 16 Jul	55.7Moderate	23–116	12.9	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	80	76	74	74	73	73	73	73	72	72	71	71	75	77	81	91	97	102	106	105	102	97	91	85
Thu	78	74	70	67	67	67	66	66	67	66	66	66	67	69	75	83	93	100	102	100	96	89	80	73
Fri	68	67	67	67	66	65	63	62	62	61	61	64	67	68	73	76	83	89	93	92	90	87	83	77
Sat	72	71	69	68	67	65	64	64	63	63	65	67	71	74	77	78	78	83	86	85	80	73	66	61
Sun	60	60	60	59	59	59	58	59	58	58	58	57	57	56	56	55	55	54	54	53	53	53	53	52
Mon	52	52	52	51	51	51	51	50	50	50	49	49	49	49	50	50	51	51	53	54	55	56	57	56
Tue	55	54	54	54	54	54	54	54	55	54	55	55	55	55	57	59	60	61	61	59	57	55	54	54

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	107.3Unhealthy for Sensitive Groups	228	20.3	168 / 168
Hanoi	102.6Unhealthy for Sensitive Groups	207	28.8	168 / 168
Ho Chi Minh City	68.6Moderate	92	17.8	168 / 168
Hue	59.5Moderate	104	13	168 / 168
Nha Trang	59.3Moderate	110	12.7	168 / 168
Hai Phong	56.8Moderate	89	11.8	168 / 168
Can Tho	49.1Good	64	9	168 / 168
Da Lat	31.3Good	58	5.2	168 / 168

City-hours by category

Good: 320

Moderate: 893

Unhealthy for Sensitive Groups: 73

Unhealthy: 33

Very Unhealthy: 25

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	80	76	74	74	73	73	73	73	72	72	71	71	75	77	81	91	97	102	106	105	102	97	91	85
Thu	78	74	70	67	67	67	66	66	67	66	66	66	67	69	75	83	93	100	102	100	96	89	80	73
Fri	68	67	67	67	66	65	63	62	62	61	61	64	67	68	73	76	83	89	93	92	90	87	83	77
Sat	72	71	69	68	67	65	64	64	63	63	65	67	71	74	77	78	78	83	86	85	80	73	66	61
Sun	60	60	60	59	59	59	58	59	58	58	58	57	57	56	56	55	55	54	54	53	53	53	53	52
Mon	52	52	52	51	51	51	51	50	50	50	49	49	49	49	50	50	51	51	53	54	55	56	57	56
Tue	55	54	54	54	54	54	54	54	55	54	55	55	55	55	57	59	60	61	61	59	57	55	54	54

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	80	76	74	74	73	73	73	73	72	72	71	71	75	77	81	91	97	102	106	105	102	97	91	85
Thu	78	74	70	67	67	67	66	66	67	66	66	66	67	69	75	83	93	100	102	100	96	89	80	73
Fri	68	67	67	67	66	65	63	62	62	61	61	64	67	68	73	76	83	89	93	92	90	87	83	77
Sat	72	71	69	68	67	65	64	64	63	63	65	67	71	74	77	78	78	83	86	85	80	73	66	61
Sun	60	60	60	59	59	59	58	59	58	58	58	57	57	56	56	55	55	54	54	53	53	53	53	52
Mon	52	52	52	51	51	51	51	50	50	50	49	49	49	49	50	50	51	51	53	54	55	56	57	56
Tue	55	54	54	54	54	54	54	54	55	54	55	55	55	55	57	59	60	61	61	59	57	55	54	54

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	80	76	74	74	73	73	73	73	72	72	71	71	75	77	81	91	97	102	106	105	102	97	91	85
Thu	78	74	70	67	67	67	66	66	67	66	66	66	67	69	75	83	93	100	102	100	96	89	80	73
Fri	68	67	67	67	66	65	63	62	62	61	61	64	67	68	73	76	83	89	93	92	90	87	83	77
Sat	72	71	69	68	67	65	64	64	63	63	65	67	71	74	77	78	78	83	86	85	80	73	66	61
Sun	60	60	60	59	59	59	58	59	58	58	58	57	57	56	56	55	55	54	54	53	53	53	53	52
Mon	52	52	52	51	51	51	51	50	50	50	49	49	49	49	50	50	51	51	53	54	55	56	57	56
Tue	55	54	54	54	54	54	54	54	55	54	55	55	55	55	57	59	60	61	61	59	57	55	54	54