Sariyer, Istanbul, Istanbul Province, Turkey Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Sariyer, Istanbul, Istanbul Province, Turkey
AQI Trends: Highest and Lowest
Same Day Analysis (17th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 47 of Good air quality, showing improvement over 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Oct - 18th Oct 2025
Sariyer, Istanbul, Istanbul Province, Turkey
7 AM17th Oct 2025
6 PM
6 AM18th Oct 2025
55AQI
36AQI
66AQI
50AQI
In the last 24 hours,
Sariyer's AQI reached its highest point of 66 at 6 AM during the Night, while the lowest point, 36, was recorded at 12 PM during the Day between 17th Oct and 18th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Sariyer, Istanbul, Istanbul Province, Turkey
20°C19/22°C
20°C18/22°C
20°C17/24°C
21°C18/24°C
22°C19/26°C
21°C19/25°C
21°C19/25°C
21°C20/24°C
20°C18/21°C
18°C17/20°C
18°C17/19°C
16°C16/16°C
17°C15/20°C
17°C15/21°C
18°C15/21°C
20°C18/23°C
19°C18/20°C
19°C16/21°C
20°C17/23°C
17°C16/18°C
16°C14/17°C
15°C13/16°C
17°C14/19°C
15°C13/17°C
15°C12/17°C
16°C14/18°C
17°C15/20°C
16°C15/19°C
16°C15/18°C
17°C15/19°C
--°C/°C
54AQI
46AQI
58AQI
50AQI
2025 Days Vs Air Quality
Sariyer, Istanbul, Istanbul Province, Turkey
56%
162
43%
124
1%
4
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Under WHO’s Safe Air Quality Limits: 56%
Health Risk Level:
Considerable
In 2025, 56% of 291 days were within WHO’s safe air quality limits, and 44% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Sariyer, Istanbul, Istanbul Province, Turkey
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
80AQI
108AQI
80AQI
59AQI
42AQI
51AQI
70AQI
56AQI
69AQI
77AQI
76AQI
45AQI
34AQI
31AQI
33AQI
28AQI
50AQI
88AQI
101AQI
86AQI
61AQI
94AQI
101AQI
95AQI
73AQI
63AQI
73AQI
89AQI
72AQI
68AQI
91AQI
111AQI
94AQI
93AQI
92AQI
41AQI
46AQI
45AQI
43AQI
40AQI
42AQI
46AQI
41AQI
55AQI
57AQI
55AQI
52AQI
54AQI
52AQI
41AQI
41AQI
45AQI
46AQI
47AQI
46AQI
48AQI
63AQI
67AQI
70AQI
76AQI
71AQI
64AQI
46AQI
49AQI
56AQI
58AQI
60AQI
78AQI
83AQI
92AQI
85AQI
64AQI
60AQI
60AQI
61AQI
57AQI
48AQI
45AQI
61AQI
63AQI
69AQI
73AQI
75AQI
75AQI
75AQI
67AQI
70AQI
66AQI
70AQI
52AQI
50AQI
46AQI
60AQI
48AQI
53AQI
42AQI
34AQI
31AQI
40AQI
42AQI
48AQI
45AQI
57AQI
54AQI
42AQI
43AQI
44AQI
50AQI
45AQI
39AQI
50AQI
62AQI
43AQI
37AQI
37AQI
40AQI
41AQI
42AQI
39AQI
35AQI
37AQI
38AQI
43AQI
34AQI
43AQI
52AQI
53AQI
64AQI
54AQI
48AQI
37AQI
43AQI
30AQI
28AQI
33AQI
35AQI
38AQI
34AQI
31AQI
25AQI
27AQI
29AQI
34AQI
38AQI
39AQI
33AQI
35AQI
35AQI
36AQI
36AQI
33AQI
32AQI
30AQI
33AQI
34AQI
35AQI
41AQI
41AQI
44AQI
46AQI
42AQI
46AQI
49AQI
51AQI
41AQI
35AQI
34AQI
36AQI
42AQI
46AQI
47AQI
39AQI
35AQI
32AQI
34AQI
34AQI
35AQI
34AQI
36AQI
34AQI
28AQI
51AQI
52AQI
38AQI
49AQI
45AQI
50AQI
52AQI
49AQI
52AQI
61AQI
45AQI
39AQI
36AQI
37AQI
50AQI
50AQI
55AQI
58AQI
49AQI
40AQI
51AQI
52AQI
63AQI
62AQI
56AQI
51AQI
50AQI
62AQI
66AQI
71AQI
56AQI
48AQI
51AQI
51AQI
50AQI
54AQI
55AQI
57AQI
64AQI
55AQI
52AQI
55AQI
53AQI
56AQI
50AQI
53AQI
49AQI
45AQI
49AQI
48AQI
40AQI
43AQI
50AQI
64AQI
50AQI
46AQI
39AQI
39AQI
40AQI
44AQI
50AQI
57AQI
55AQI
51AQI
56AQI
47AQI
52AQI
51AQI
52AQI
50AQI
52AQI
54AQI
56AQI
57AQI
43AQI
36AQI
38AQI
41AQI
44AQI
45AQI
40AQI
38AQI
42AQI
38AQI
38AQI
47AQI
41AQI
39AQI
35AQI
27AQI
39AQI
36AQI
44AQI
44AQI
61AQI
67AQI
70AQI
74AQI
83AQI
69AQI
58AQI
73AQI
66AQI
60AQI
83AQI
63AQI
55AQI
50AQI
47AQI
69AQI
56AQI
65AQI
45AQI
38AQI
38AQI
52AQI
50AQI
45AQI
63AQI
No. of days
202552AQI
Highest AQI recorded in
January69AQI
Lowest AQI recorded in
May38AQI
202458AQI
Highest AQI recorded in
March86AQI
Lowest AQI recorded in
August46AQI
202366AQI
Highest AQI recorded in
January84AQI
Lowest AQI recorded in
August53AQI
202265AQI
Highest AQI recorded in
March81AQI
Lowest AQI recorded in
July39AQI
202164AQI
Highest AQI recorded in
November91AQI
Lowest AQI recorded in
March49AQI
202044AQI
Highest AQI recorded in
November129AQI
Lowest AQI recorded in
July26AQI
Most & Least Polluted Years Over the Last 6 Years
Sariyer's annual 2025 AQI (52) shows an average percentage change of -11.2% (improved AQI) compared to previous years: 2020 (44), 2021 (64), 2022 (65), 2023 (66), 2024 (58).