Ulan Ude, Buryatiya, Russia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Ulan Ude, Buryatiya, Russia
AQI Trends: Highest and Lowest
Same Day Analysis (5th August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Ulan Ude, Buryatiya, Russia
4 AM6th Aug 2025
8 PM
3 AM7th Aug 2025
AQI
AQI
59AQI
34AQI
In the last 24 hours,
Ulan Ude's AQI reached its highest point of 59 at 5 PM during the Night, while the lowest point, 34, was recorded at 2 PM during the Night between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Ulan Ude, Buryatiya, Russia
20°C13/30°C
18°C13/25°C
20°C15/25°C
22°C14/30°C
25°C15/33°C
19°C14/26°C
21°C15/28°C
23°C14/33°C
20°C13/27°C
21°C13/28°C
21°C13/29°C
22°C13/30°C
24°C12/33°C
15°C9/21°C
20°C10/29°C
13°C8/17°C
13°C8/20°C
15°C7/23°C
18°C9/27°C
19°C10/30°C
15°C9/22°C
18°C9/26°C
19°C11/27°C
19°C13/27°C
19°C12/27°C
22°C12/30°C
20°C13/27°C
21°C13/29°C
14°C12/16°C
--°C/°C
--°C/°C
53AQI
31AQI
54AQI
54AQI
2025 Days Vs Air Quality
Ulan Ude, Buryatiya, Russia
23%
49
50%
109
18%
40
9%
19
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 23%
Health Risk Level:
Very high
In 2025, 23% of 218 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Ulan Ude, Buryatiya, Russia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
159AQI
128AQI
151AQI
193AQI
165AQI
159AQI
119AQI
143AQI
114AQI
126AQI
130AQI
156AQI
167AQI
133AQI
115AQI
148AQI
166AQI
171AQI
167AQI
165AQI
163AQI
183AQI
181AQI
138AQI
95AQI
104AQI
114AQI
139AQI
200AQI
190AQI
200AQI
179AQI
134AQI
109AQI
99AQI
80AQI
80AQI
125AQI
118AQI
146AQI
134AQI
153AQI
127AQI
127AQI
123AQI
110AQI
109AQI
111AQI
116AQI
133AQI
91AQI
113AQI
98AQI
113AQI
122AQI
108AQI
124AQI
105AQI
119AQI
127AQI
116AQI
83AQI
83AQI
81AQI
80AQI
94AQI
93AQI
84AQI
101AQI
116AQI
79AQI
88AQI
66AQI
73AQI
76AQI
63AQI
71AQI
74AQI
73AQI
78AQI
82AQI
86AQI
74AQI
80AQI
91AQI
72AQI
68AQI
66AQI
70AQI
70AQI
70AQI
70AQI
75AQI
70AQI
74AQI
91AQI
66AQI
74AQI
76AQI
81AQI
102AQI
77AQI
71AQI
74AQI
78AQI
140AQI
73AQI
72AQI
66AQI
67AQI
81AQI
95AQI
66AQI
67AQI
70AQI
59AQI
61AQI
65AQI
74AQI
69AQI
56AQI
47AQI
42AQI
44AQI
47AQI
61AQI
63AQI
51AQI
58AQI
44AQI
71AQI
50AQI
41AQI
48AQI
39AQI
40AQI
61AQI
49AQI
44AQI
48AQI
51AQI
46AQI
52AQI
66AQI
59AQI
67AQI
57AQI
58AQI
39AQI
40AQI
39AQI
43AQI
34AQI
40AQI
28AQI
27AQI
24AQI
30AQI
30AQI
39AQI
49AQI
48AQI
52AQI
47AQI
53AQI
59AQI
57AQI
55AQI
55AQI
51AQI
52AQI
53AQI
52AQI
56AQI
58AQI
66AQI
62AQI
64AQI
63AQI
67AQI
75AQI
64AQI
58AQI
54AQI
54AQI
52AQI
51AQI
51AQI
49AQI
49AQI
49AQI
51AQI
51AQI
53AQI
51AQI
50AQI
48AQI
48AQI
47AQI
47AQI
46AQI
46AQI
46AQI
45AQI
46AQI
38AQI
47AQI
46AQI
45AQI
46AQI
46AQI
47AQI
56AQI
60AQI
58AQI
54AQI
53AQI
151AQI
118AQI
83AQI
76AQI
51AQI
50AQI
49AQI
56AQI
No. of days
202582AQI
Highest AQI recorded in
January151AQI
Lowest AQI recorded in
July49AQI
202427AQI
Highest AQI recorded in
December125AQI
Lowest AQI recorded in
September3AQI
202319AQI
Highest AQI recorded in
February41AQI
Lowest AQI recorded in
November7AQI
202239AQI
Highest AQI recorded in
November51AQI
Lowest AQI recorded in
December28AQI
Most & Least Polluted Years Over the Last 4 Years
Ulan Ude's annual 2025 AQI (82) shows an average percentage change of 210.9% (worsened AQI) compared to previous years: 2022 (39), 2023 (19), 2024 (27).