Suginami City, Tokyo, 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
Suginami City, Tokyo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (17th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 44 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Sep - 19th Sep 2025
Suginami City, Tokyo, Japan
5 AM18th Sep 2025
6 PM
4 AM19th Sep 2025
AQI
AQI
81AQI
24AQI
In the last 24 hours,
Suginami City's AQI reached its highest point of 81 at 12 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 18th Sep and 19th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Suginami City, Tokyo, Japan
31°C28/33°C
32°C29/35°C
31°C28/34°C
31°C28/34°C
32°C29/35°C
31°C28/36°C
30°C28/33°C
31°C29/34°C
29°C27/32°C
29°C27/32°C
32°C28/36°C
32°C29/36°C
30°C28/34°C
31°C29/35°C
31°C29/34°C
27°C26/28°C
26°C24/26°C
27°C24/31°C
28°C26/31°C
30°C27/34°C
30°C28/32°C
29°C28/31°C
27°C24/29°C
25°C24/28°C
27°C24/30°C
29°C27/33°C
28°C26/31°C
29°C27/32°C
30°C27/33°C
--°C/°C
--°C/°C
47AQI
43AQI
44AQI
39AQI
2025 Days Vs Air Quality
Suginami City, Tokyo, Japan
82%
92
18%
20
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Under WHO’s Safe Air Quality Limits: 82%
Health Risk Level:
Low
In 2025, 82% of 261 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Suginami City, Tokyo, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
29AQI
15AQI
16AQI
32AQI
35AQI
23AQI
40AQI
41AQI
44AQI
57AQI
39AQI
47AQI
41AQI
40AQI
40AQI
30AQI
26AQI
30AQI
40AQI
34AQI
35AQI
36AQI
25AQI
18AQI
17AQI
15AQI
15AQI
15AQI
27AQI
26AQI
32AQI
40AQI
44AQI
52AQI
49AQI
51AQI
54AQI
64AQI
76AQI
79AQI
82AQI
61AQI
55AQI
57AQI
54AQI
45AQI
43AQI
43AQI
41AQI
39AQI
34AQI
33AQI
33AQI
36AQI
40AQI
40AQI
38AQI
36AQI
33AQI
37AQI
36AQI
33AQI
34AQI
32AQI
39AQI
44AQI
58AQI
52AQI
49AQI
47AQI
47AQI
49AQI
40AQI
39AQI
36AQI
33AQI
36AQI
35AQI
37AQI
39AQI
43AQI
46AQI
46AQI
49AQI
50AQI
48AQI
56AQI
56AQI
55AQI
51AQI
47AQI
50AQI
55AQI
52AQI
44AQI
38AQI
37AQI
42AQI
31AQI
29AQI
30AQI
37AQI
42AQI
38AQI
31AQI
32AQI
28AQI
35AQI
38AQI
38AQI
44AQI
23AQI
32AQI
47AQI
46AQI
36AQI
No. of days
202540AQI
Highest AQI recorded in
July47AQI
Lowest AQI recorded in
May23AQI
Most & Least Polluted Years Over the Last 1 Years
Suginami City's annual 2025 AQI (40) shows an average percentage change of NaN% (improved AQI) compared to previous years: .