Sakai, Kanagawa, Japan 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
Sakai, Kanagawa, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (20th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 32 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Sakai, Kanagawa, Japan
5 AM21st Sep 2025
6 PM
4 AM22nd Sep 2025
43AQI
16AQI
38AQI
14AQI
In the last 24 hours,
Sakai's AQI reached its highest point of 43 at 9 AM during the Day, while the lowest point, 14, was recorded at 6 PM during the Night between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Sakai, Kanagawa, Japan
28°C25/33°C
28°C25/32°C
28°C26/32°C
28°C25/31°C
28°C25/33°C
27°C25/30°C
27°C24/30°C
28°C25/32°C
28°C26/32°C
29°C26/33°C
29°C26/33°C
28°C25/32°C
25°C24/25°C
24°C22/25°C
25°C23/27°C
26°C23/29°C
28°C25/31°C
27°C26/30°C
27°C25/30°C
26°C23/29°C
24°C23/26°C
26°C23/29°C
27°C25/31°C
26°C25/28°C
27°C25/29°C
28°C25/32°C
27°C23/32°C
21°C20/22°C
22°C21/23°C
25°C22/29°C
--°C/°C
42AQI
39AQI
41AQI
40AQI
2025 Days Vs Air Quality
Sakai, Kanagawa, Japan
92%
241
8%
22
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2025, 92% of 265 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
Sakai, Kanagawa, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
31AQI
23AQI
24AQI
22AQI
49AQI
30AQI
36AQI
30AQI
28AQI
25AQI
28AQI
30AQI
26AQI
31AQI
21AQI
24AQI
26AQI
27AQI
26AQI
31AQI
33AQI
39AQI
38AQI
38AQI
33AQI
32AQI
29AQI
31AQI
29AQI
25AQI
24AQI
25AQI
28AQI
28AQI
29AQI
28AQI
29AQI
30AQI
28AQI
27AQI
28AQI
29AQI
29AQI
28AQI
27AQI
30AQI
34AQI
28AQI
30AQI
28AQI
30AQI
28AQI
30AQI
29AQI
33AQI
32AQI
35AQI
38AQI
51AQI
42AQI
41AQI
32AQI
26AQI
27AQI
30AQI
29AQI
33AQI
32AQI
29AQI
27AQI
31AQI
27AQI
22AQI
17AQI
16AQI
15AQI
14AQI
16AQI
24AQI
26AQI
30AQI
33AQI
51AQI
71AQI
59AQI
39AQI
31AQI
33AQI
30AQI
22AQI
21AQI
17AQI
18AQI
18AQI
14AQI
16AQI
18AQI
22AQI
21AQI
21AQI
23AQI
19AQI
21AQI
19AQI
19AQI
24AQI
28AQI
31AQI
26AQI
23AQI
21AQI
15AQI
17AQI
17AQI
20AQI
21AQI
19AQI
15AQI
19AQI
19AQI
17AQI
16AQI
19AQI
17AQI
16AQI
15AQI
16AQI
16AQI
13AQI
16AQI
16AQI
17AQI
17AQI
19AQI
20AQI
18AQI
20AQI
23AQI
54AQI
31AQI
30AQI
25AQI
24AQI
18AQI
21AQI
26AQI
16AQI
19AQI
15AQI
15AQI
14AQI
16AQI
16AQI
16AQI
18AQI
20AQI
38AQI
26AQI
26AQI
24AQI
23AQI
24AQI
23AQI
20AQI
20AQI
22AQI
26AQI
30AQI
29AQI
25AQI
21AQI
12AQI
13AQI
14AQI
20AQI
15AQI
18AQI
20AQI
24AQI
41AQI
42AQI
47AQI
46AQI
45AQI
52AQI
60AQI
77AQI
73AQI
72AQI
52AQI
47AQI
54AQI
49AQI
39AQI
40AQI
38AQI
41AQI
35AQI
30AQI
30AQI
33AQI
32AQI
36AQI
38AQI
33AQI
30AQI
28AQI
27AQI
33AQI
32AQI
35AQI
36AQI
42AQI
47AQI
63AQI
51AQI
51AQI
47AQI
41AQI
45AQI
35AQI
35AQI
36AQI
33AQI
37AQI
38AQI
39AQI
40AQI
42AQI
45AQI
47AQI
48AQI
48AQI
48AQI
55AQI
57AQI
55AQI
52AQI
49AQI
52AQI
55AQI
54AQI
43AQI
38AQI
37AQI
33AQI
32AQI
29AQI
30AQI
39AQI
40AQI
37AQI
30AQI
31AQI
29AQI
39AQI
34AQI
39AQI
49AQI
49AQI
35AQI
32AQI
30AQI
29AQI
32AQI
20AQI
20AQI
22AQI
43AQI
46AQI
36AQI
No. of days
202531AQI
Highest AQI recorded in
August46AQI
Lowest AQI recorded in
May20AQI
202428AQI
Highest AQI recorded in
July38AQI
Lowest AQI recorded in
January23AQI
202326AQI
Highest AQI recorded in
April35AQI
Lowest AQI recorded in
August18AQI
202230AQI
Highest AQI recorded in
March38AQI
Lowest AQI recorded in
August20AQI
202124AQI
Highest AQI recorded in
June33AQI
Lowest AQI recorded in
January12AQI
202023AQI
Highest AQI recorded in
August42AQI
Lowest AQI recorded in
September12AQI
Most & Least Polluted Years Over the Last 6 Years
Sakai's annual 2025 AQI (31) shows an average percentage change of 18.09% (worsened AQI) compared to previous years: 2020 (23), 2021 (24), 2022 (30), 2023 (26), 2024 (28).