Thanh pho Uong Bi, Quang Ninh, Vietnam Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Thanh pho Uong Bi, Quang Ninh, Vietnam
AQI Trends: Highest and Lowest
Same Day Analysis (16th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 41 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Thanh pho Uong Bi, Quang Ninh, Vietnam
5 AM17th Sep 2025
6 PM
4 AM18th Sep 2025
AQI
AQI
52AQI
29AQI
In the last 24 hours,
Thanh pho Uong Bi's AQI reached its highest point of 52 at 8 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Thanh pho Uong Bi, Quang Ninh, Vietnam
25°C23/26°C
27°C25/29°C
26°C25/28°C
27°C25/29°C
27°C25/31°C
27°C24/32°C
24°C24/25°C
25°C24/27°C
25°C24/28°C
27°C23/32°C
25°C24/28°C
26°C24/30°C
27°C24/31°C
27°C25/31°C
27°C24/32°C
28°C25/32°C
28°C25/32°C
28°C25/33°C
28°C25/33°C
29°C24/35°C
28°C25/35°C
27°C25/29°C
27°C26/31°C
27°C25/29°C
27°C25/31°C
27°C24/32°C
27°C24/30°C
27°C25/30°C
27°C24/32°C
--°C/°C
--°C/°C
44AQI
36AQI
44AQI
44AQI
2025 Days Vs Air Quality
Thanh pho Uong Bi, Quang Ninh, Vietnam
50%
56
50%
55
Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)
Under WHO’s Safe Air Quality Limits: 50%
Health Risk Level:
Considerable
In 2025, 50% of 260 days were within WHO’s safe air quality limits, and 50% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Thanh pho Uong Bi, Quang Ninh, Vietnam
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
48AQI
53AQI
50AQI
49AQI
50AQI
50AQI
51AQI
53AQI
52AQI
51AQI
52AQI
52AQI
52AQI
53AQI
51AQI
50AQI
52AQI
54AQI
57AQI
55AQI
55AQI
57AQI
59AQI
53AQI
52AQI
53AQI
57AQI
51AQI
52AQI
50AQI
48AQI
44AQI
50AQI
41AQI
38AQI
43AQI
56AQI
57AQI
56AQI
56AQI
54AQI
56AQI
51AQI
50AQI
50AQI
53AQI
58AQI
58AQI
55AQI
53AQI
55AQI
61AQI
53AQI
47AQI
43AQI
42AQI
39AQI
45AQI
49AQI
47AQI
47AQI
59AQI
56AQI
53AQI
52AQI
52AQI
56AQI
56AQI
55AQI
53AQI
52AQI
52AQI
54AQI
53AQI
52AQI
50AQI
51AQI
54AQI
43AQI
40AQI
37AQI
34AQI
36AQI
41AQI
39AQI
42AQI
41AQI
44AQI
35AQI
35AQI
39AQI
45AQI
46AQI
41AQI
40AQI
41AQI
43AQI
40AQI
46AQI
39AQI
40AQI
48AQI
56AQI
48AQI
50AQI
42AQI
42AQI
40AQI
41AQI
41AQI
41AQI
50AQI
52AQI
51AQI
46AQI
44AQI
No. of days
202549AQI
Highest AQI recorded in
June52AQI
Lowest AQI recorded in
September44AQI
Most & Least Polluted Years Over the Last 1 Years
Thanh pho Uong Bi's annual 2025 AQI (49) shows an average percentage change of NaN% (improved AQI) compared to previous years: .