Shahryar, Shahriar, Tehran, Iran 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
Shahryar, Shahriar, Tehran, Iran
AQI Trends: Highest and Lowest
Same Day Analysis (17th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 83 of Moderate air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Aug - 18th Aug 2025
Shahryar, Shahriar, Tehran, Iran
6 AM17th Aug 2025
8 PM
5 AM18th Aug 2025
92AQI
67AQI
93AQI
80AQI
In the last 24 hours,
Shahryar's AQI reached its highest point of 93 at 12 AM during the Night, while the lowest point, 67, was recorded at 9 AM during the Day between 17th Aug and 18th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Shahryar, Shahriar, Tehran, Iran
31°C26/36°C
32°C27/36°C
32°C27/36°C
32°C27/37°C
29°C23/35°C
30°C25/34°C
30°C25/34°C
29°C24/34°C
28°C22/33°C
30°C25/35°C
32°C27/36°C
31°C28/34°C
30°C26/34°C
30°C25/34°C
31°C26/35°C
32°C27/36°C
32°C27/36°C
32°C26/36°C
31°C26/33°C
30°C27/34°C
30°C26/34°C
30°C26/34°C
29°C25/33°C
29°C24/33°C
30°C25/33°C
28°C23/34°C
26°C20/32°C
27°C21/32°C
29°C24/33°C
26°C20/31°C
--°C/°C
83AQI
83AQI
87AQI
85AQI
2025 Days Vs Air Quality
Shahryar, Shahriar, Tehran, Iran
4%
9
78%
179
17%
40
0.4%
1
Total number of days with different AQI categories in last 230 days in 2025 (135 days remaining)
Under WHO’s Safe Air Quality Limits: 4%
Health Risk Level:
Extreme
In 2025, 4% of 230 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Shahryar, Shahriar, Tehran, Iran
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
80AQI
61AQI
70AQI
75AQI
75AQI
109AQI
130AQI
104AQI
124AQI
133AQI
144AQI
154AQI
103AQI
91AQI
124AQI
127AQI
73AQI
73AQI
83AQI
83AQI
67AQI
70AQI
88AQI
79AQI
86AQI
97AQI
91AQI
74AQI
82AQI
113AQI
104AQI
122AQI
150AQI
118AQI
102AQI
93AQI
98AQI
69AQI
55AQI
64AQI
58AQI
85AQI
110AQI
123AQI
67AQI
63AQI
58AQI
63AQI
67AQI
60AQI
73AQI
65AQI
53AQI
46AQI
37AQI
36AQI
39AQI
42AQI
47AQI
53AQI
41AQI
46AQI
46AQI
68AQI
60AQI
65AQI
53AQI
57AQI
63AQI
58AQI
61AQI
68AQI
90AQI
124AQI
139AQI
123AQI
141AQI
147AQI
130AQI
96AQI
69AQI
68AQI
82AQI
55AQI
79AQI
76AQI
81AQI
83AQI
82AQI
81AQI
71AQI
81AQI
70AQI
68AQI
68AQI
67AQI
68AQI
74AQI
70AQI
71AQI
76AQI
76AQI
75AQI
82AQI
79AQI
79AQI
63AQI
70AQI
68AQI
70AQI
65AQI
69AQI
71AQI
76AQI
86AQI
90AQI
83AQI
78AQI
74AQI
82AQI
75AQI
73AQI
69AQI
77AQI
73AQI
75AQI
77AQI
80AQI
70AQI
69AQI
68AQI
66AQI
66AQI
84AQI
72AQI
74AQI
65AQI
71AQI
73AQI
77AQI
71AQI
87AQI
87AQI
74AQI
72AQI
72AQI
73AQI
75AQI
75AQI
76AQI
75AQI
72AQI
73AQI
69AQI
68AQI
69AQI
72AQI
74AQI
78AQI
70AQI
72AQI
78AQI
76AQI
82AQI
82AQI
79AQI
81AQI
93AQI
100AQI
108AQI
94AQI
94AQI
96AQI
97AQI
97AQI
99AQI
101AQI
101AQI
102AQI
108AQI
112AQI
111AQI
119AQI
109AQI
109AQI
108AQI
117AQI
119AQI
106AQI
97AQI
97AQI
105AQI
105AQI
102AQI
99AQI
92AQI
87AQI
84AQI
85AQI
84AQI
82AQI
85AQI
84AQI
82AQI
82AQI
77AQI
69AQI
71AQI
71AQI
76AQI
78AQI
85AQI
93AQI
90AQI
90AQI
91AQI
93AQI
91AQI
88AQI
81AQI
82AQI
80AQI
93AQI
88AQI
89AQI
82AQI
85AQI
92AQI
83AQI
96AQI
74AQI
80AQI
74AQI
74AQI
87AQI
93AQI
88AQI
No. of days
202583AQI
Highest AQI recorded in
January96AQI
Lowest AQI recorded in
February74AQI
202485AQI
Highest AQI recorded in
December125AQI
Lowest AQI recorded in
November66AQI
2023104AQI
Highest AQI recorded in
November217AQI
Lowest AQI recorded in
April71AQI
202297AQI
Highest AQI recorded in
December128AQI
Lowest AQI recorded in
March76AQI
202183AQI
Highest AQI recorded in
November109AQI
Lowest AQI recorded in
March35AQI
202079AQI
Highest AQI recorded in
December110AQI
Lowest AQI recorded in
March31AQI
Most & Least Polluted Years Over the Last 6 Years
Shahryar's annual 2025 AQI (83) shows an average percentage change of -6.2% (improved AQI) compared to previous years: 2020 (79), 2021 (83), 2022 (97), 2023 (104), 2024 (85).