Sakura, Chiba, 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
Sakura, Chiba, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (18th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 47 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Sep - 20th Sep 2025
Sakura, Chiba, Japan
5 AM19th Sep 2025
6 PM
4 AM20th Sep 2025
AQI
AQI
52AQI
21AQI
In the last 24 hours,
Sakura's AQI reached its highest point of 52 at 5 AM during the Night, while the lowest point, 21, was recorded at 5 PM during the Night between 19th Sep and 20th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Sakura, Chiba, Japan
31°C26/38°C
31°C27/37°C
31°C27/36°C
32°C27/39°C
30°C26/36°C
31°C27/36°C
30°C27/35°C
28°C25/33°C
29°C25/35°C
32°C27/38°C
32°C28/36°C
31°C27/35°C
31°C27/35°C
31°C28/36°C
26°C25/29°C
25°C24/26°C
26°C22/31°C
28°C24/32°C
29°C25/35°C
29°C26/34°C
28°C26/32°C
27°C23/30°C
25°C23/28°C
27°C23/30°C
29°C27/31°C
27°C25/32°C
28°C26/32°C
29°C26/34°C
29°C23/34°C
--°C/°C
--°C/°C
43AQI
39AQI
41AQI
38AQI
2025 Days Vs Air Quality
Sakura, Chiba, Japan
90%
234
10%
27
Total number of days with different AQI categories in last 262 days in 2025 (103 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 262 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
Sakura, Chiba, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
31AQI
25AQI
28AQI
34AQI
50AQI
33AQI
36AQI
29AQI
30AQI
30AQI
32AQI
31AQI
40AQI
37AQI
33AQI
31AQI
35AQI
53AQI
38AQI
42AQI
40AQI
46AQI
42AQI
39AQI
36AQI
36AQI
37AQI
31AQI
33AQI
30AQI
38AQI
31AQI
36AQI
32AQI
34AQI
30AQI
30AQI
31AQI
31AQI
31AQI
34AQI
36AQI
49AQI
32AQI
52AQI
39AQI
44AQI
32AQI
32AQI
31AQI
31AQI
32AQI
33AQI
33AQI
34AQI
37AQI
40AQI
51AQI
45AQI
60AQI
39AQI
41AQI
26AQI
32AQI
32AQI
34AQI
33AQI
37AQI
39AQI
40AQI
40AQI
40AQI
33AQI
25AQI
20AQI
23AQI
18AQI
23AQI
43AQI
49AQI
56AQI
53AQI
71AQI
81AQI
72AQI
50AQI
41AQI
42AQI
35AQI
28AQI
23AQI
20AQI
21AQI
24AQI
25AQI
32AQI
39AQI
29AQI
48AQI
43AQI
38AQI
30AQI
42AQI
27AQI
35AQI
45AQI
52AQI
64AQI
51AQI
47AQI
46AQI
30AQI
39AQI
39AQI
47AQI
50AQI
45AQI
38AQI
46AQI
41AQI
29AQI
33AQI
39AQI
34AQI
29AQI
24AQI
28AQI
29AQI
24AQI
32AQI
26AQI
39AQI
31AQI
37AQI
42AQI
28AQI
47AQI
42AQI
65AQI
44AQI
46AQI
42AQI
41AQI
30AQI
28AQI
26AQI
25AQI
27AQI
25AQI
17AQI
22AQI
28AQI
31AQI
36AQI
42AQI
47AQI
51AQI
57AQI
42AQI
35AQI
30AQI
40AQI
36AQI
33AQI
40AQI
37AQI
50AQI
44AQI
40AQI
33AQI
29AQI
19AQI
24AQI
22AQI
22AQI
22AQI
33AQI
30AQI
36AQI
43AQI
40AQI
48AQI
44AQI
45AQI
54AQI
74AQI
80AQI
78AQI
74AQI
54AQI
46AQI
49AQI
45AQI
37AQI
36AQI
35AQI
38AQI
36AQI
34AQI
37AQI
35AQI
35AQI
37AQI
38AQI
35AQI
33AQI
33AQI
36AQI
30AQI
32AQI
30AQI
33AQI
40AQI
44AQI
60AQI
49AQI
50AQI
48AQI
47AQI
44AQI
37AQI
37AQI
35AQI
32AQI
32AQI
33AQI
34AQI
39AQI
42AQI
44AQI
47AQI
48AQI
48AQI
47AQI
54AQI
54AQI
52AQI
49AQI
44AQI
50AQI
53AQI
52AQI
42AQI
36AQI
35AQI
32AQI
30AQI
29AQI
29AQI
37AQI
40AQI
35AQI
30AQI
31AQI
27AQI
33AQI
34AQI
32AQI
47AQI
47AQI
36AQI
36AQI
41AQI
38AQI
34AQI
35AQI
44AQI
44AQI
35AQI
No. of days
202538AQI
Highest AQI recorded in
August44AQI
Lowest AQI recorded in
May34AQI
202436AQI
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
September30AQI
202337AQI
Highest AQI recorded in
April43AQI
Lowest AQI recorded in
August24AQI
202236AQI
Highest AQI recorded in
March40AQI
Lowest AQI recorded in
August16AQI
202132AQI
Highest AQI recorded in
December40AQI
Lowest AQI recorded in
August28AQI
202030AQI
Highest AQI recorded in
August37AQI
Lowest AQI recorded in
September22AQI
Most & Least Polluted Years Over the Last 6 Years
Sakura's annual 2025 AQI (38) shows an average percentage change of 13.004% (worsened AQI) compared to previous years: 2020 (30), 2021 (32), 2022 (36), 2023 (37), 2024 (36).