Sakata, Yamagata, Japan 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
Sakata, Yamagata, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 54 of Moderate air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Sakata, Yamagata, Japan
5 AM4th Oct 2025
5 PM
4 AM5th Oct 2025
AQI
AQI
72AQI
48AQI
In the last 24 hours,
Sakata's AQI reached its highest point of 72 at 6 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Sakata, Yamagata, Japan
23°C22/26°C
24°C21/26°C
24°C20/28°C
24°C22/27°C
24°C20/27°C
24°C21/27°C
22°C20/25°C
23°C20/27°C
23°C22/24°C
23°C19/25°C
23°C20/26°C
24°C22/27°C
24°C22/27°C
21°C19/23°C
20°C17/22°C
20°C18/21°C
21°C19/22°C
20°C17/22°C
19°C16/24°C
19°C16/24°C
20°C18/23°C
22°C19/24°C
20°C17/23°C
20°C16/23°C
20°C19/21°C
20°C17/23°C
18°C17/21°C
19°C16/22°C
20°C17/24°C
--°C/°C
--°C/°C
35AQI
32AQI
35AQI
35AQI
2025 Days Vs Air Quality
Sakata, Yamagata, Japan
91%
251
9%
25
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 277 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Sakata, Yamagata, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI
30AQI
29AQI
31AQI
29AQI
27AQI
31AQI
29AQI
28AQI
29AQI
27AQI
26AQI
28AQI
33AQI
30AQI
29AQI
27AQI
29AQI
28AQI
32AQI
38AQI
32AQI
33AQI
36AQI
29AQI
28AQI
25AQI
27AQI
30AQI
31AQI
32AQI
31AQI
29AQI
30AQI
32AQI
31AQI
33AQI
33AQI
31AQI
32AQI
32AQI
34AQI
31AQI
35AQI
34AQI
31AQI
32AQI
44AQI
32AQI
37AQI
32AQI
32AQI
33AQI
33AQI
33AQI
35AQI
44AQI
37AQI
50AQI
47AQI
53AQI
39AQI
43AQI
33AQI
34AQI
34AQI
34AQI
35AQI
36AQI
39AQI
39AQI
45AQI
33AQI
34AQI
22AQI
22AQI
25AQI
22AQI
30AQI
48AQI
55AQI
36AQI
40AQI
59AQI
47AQI
56AQI
43AQI
32AQI
28AQI
27AQI
23AQI
20AQI
19AQI
20AQI
24AQI
25AQI
25AQI
30AQI
25AQI
29AQI
35AQI
33AQI
24AQI
21AQI
20AQI
25AQI
36AQI
41AQI
52AQI
39AQI
35AQI
30AQI
29AQI
21AQI
25AQI
44AQI
36AQI
41AQI
29AQI
24AQI
25AQI
22AQI
27AQI
29AQI
29AQI
25AQI
25AQI
25AQI
31AQI
23AQI
31AQI
25AQI
40AQI
35AQI
40AQI
46AQI
33AQI
41AQI
35AQI
52AQI
52AQI
43AQI
39AQI
34AQI
26AQI
27AQI
28AQI
31AQI
30AQI
30AQI
22AQI
24AQI
32AQI
36AQI
31AQI
35AQI
35AQI
44AQI
52AQI
55AQI
56AQI
49AQI
43AQI
38AQI
39AQI
28AQI
27AQI
32AQI
36AQI
41AQI
44AQI
47AQI
60AQI
51AQI
48AQI
51AQI
44AQI
54AQI
44AQI
46AQI
49AQI
51AQI
53AQI
61AQI
65AQI
61AQI
59AQI
59AQI
57AQI
55AQI
53AQI
49AQI
47AQI
49AQI
43AQI
43AQI
47AQI
43AQI
43AQI
43AQI
43AQI
41AQI
41AQI
40AQI
44AQI
43AQI
46AQI
45AQI
41AQI
40AQI
47AQI
43AQI
37AQI
37AQI
38AQI
45AQI
42AQI
39AQI
36AQI
35AQI
34AQI
36AQI
30AQI
30AQI
31AQI
33AQI
32AQI
31AQI
35AQI
36AQI
43AQI
48AQI
45AQI
42AQI
46AQI
44AQI
43AQI
49AQI
39AQI
34AQI
39AQI
41AQI
40AQI
43AQI
37AQI
33AQI
35AQI
26AQI
27AQI
28AQI
30AQI
37AQI
33AQI
33AQI
36AQI
29AQI
31AQI
30AQI
33AQI
36AQI
29AQI
28AQI
27AQI
25AQI
25AQI
27AQI
28AQI
33AQI
41AQI
36AQI
26AQI
40AQI
43AQI
41AQI
43AQI
54AQI
30AQI
34AQI
38AQI
29AQI
32AQI
42AQI
48AQI
38AQI
32AQI
46AQI
No. of days
202536AQI
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
April29AQI
202436AQI
Highest AQI recorded in
April47AQI
Lowest AQI recorded in
January28AQI
202338AQI
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
December26AQI
202238AQI
Highest AQI recorded in
May49AQI
Lowest AQI recorded in
December29AQI
202135AQI
Highest AQI recorded in
June47AQI
Lowest AQI recorded in
January26AQI
202031AQI
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
December23AQI
Most & Least Polluted Years Over the Last 6 Years
Sakata's annual 2025 AQI (36) shows an average percentage change of 1.9% (worsened AQI) compared to previous years: 2020 (31), 2021 (35), 2022 (38), 2023 (38), 2024 (36).