Fukuishicho, Sato, Nagasaki, 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
Fukuishicho, Sato, Nagasaki, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (13th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 65 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Oct - 14th Oct 2025
Fukuishicho, Sato, Nagasaki, Japan
6 AM13th Oct 2025
6 PM
5 AM14th Oct 2025
AQI
AQI
69AQI
57AQI
In the last 24 hours,
Fukuishicho's AQI reached its highest point of 69 at 7 PM during the Night, while the lowest point, 57, was recorded at 9 AM during the Night between 13th Oct and 14th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Fukuishicho, Sato, Nagasaki, Japan
27°C25/31°C
27°C25/31°C
27°C25/31°C
27°C25/30°C
26°C24/29°C
25°C23/29°C
25°C23/27°C
24°C21/27°C
23°C20/28°C
25°C22/29°C
26°C24/29°C
26°C24/30°C
26°C23/30°C
22°C20/24°C
24°C21/28°C
24°C21/27°C
22°C19/27°C
22°C19/26°C
23°C19/27°C
22°C20/23°C
25°C24/27°C
24°C22/27°C
24°C22/28°C
25°C21/29°C
25°C23/28°C
23°C20/27°C
22°C19/28°C
24°C21/30°C
24°C22/28°C
--°C/°C
--°C/°C
44AQI
37AQI
44AQI
42AQI
2025 Days Vs Air Quality
Fukuishicho, Sato, Nagasaki, Japan
73%
209
27%
77
Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)
Under WHO’s Safe Air Quality Limits: 73%
Health Risk Level:
Low
In 2025, 73% of 286 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
Fukuishicho, Sato, Nagasaki, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
45AQI
34AQI
36AQI
34AQI
58AQI
30AQI
44AQI
29AQI
33AQI
28AQI
37AQI
40AQI
48AQI
45AQI
39AQI
52AQI
49AQI
47AQI
65AQI
77AQI
81AQI
66AQI
75AQI
44AQI
45AQI
42AQI
36AQI
34AQI
40AQI
44AQI
40AQI
40AQI
47AQI
32AQI
44AQI
32AQI
40AQI
30AQI
32AQI
31AQI
44AQI
38AQI
35AQI
42AQI
30AQI
42AQI
38AQI
37AQI
34AQI
34AQI
31AQI
42AQI
37AQI
38AQI
35AQI
52AQI
65AQI
64AQI
54AQI
40AQI
40AQI
31AQI
33AQI
31AQI
36AQI
39AQI
45AQI
49AQI
52AQI
53AQI
56AQI
41AQI
32AQI
35AQI
51AQI
50AQI
52AQI
57AQI
61AQI
68AQI
62AQI
55AQI
64AQI
57AQI
47AQI
60AQI
55AQI
40AQI
44AQI
42AQI
39AQI
39AQI
41AQI
43AQI
47AQI
45AQI
44AQI
57AQI
52AQI
62AQI
53AQI
56AQI
59AQI
39AQI
53AQI
47AQI
56AQI
48AQI
42AQI
44AQI
32AQI
28AQI
37AQI
50AQI
48AQI
51AQI
42AQI
51AQI
53AQI
44AQI
43AQI
43AQI
45AQI
44AQI
40AQI
39AQI
46AQI
35AQI
40AQI
50AQI
53AQI
58AQI
58AQI
58AQI
62AQI
42AQI
53AQI
52AQI
39AQI
30AQI
35AQI
44AQI
25AQI
35AQI
39AQI
45AQI
51AQI
53AQI
45AQI
43AQI
51AQI
49AQI
40AQI
49AQI
50AQI
48AQI
57AQI
60AQI
39AQI
33AQI
39AQI
36AQI
36AQI
32AQI
31AQI
32AQI
30AQI
34AQI
34AQI
31AQI
28AQI
27AQI
26AQI
24AQI
24AQI
28AQI
29AQI
28AQI
27AQI
34AQI
45AQI
53AQI
55AQI
61AQI
53AQI
51AQI
49AQI
55AQI
58AQI
56AQI
52AQI
50AQI
48AQI
44AQI
48AQI
50AQI
50AQI
38AQI
40AQI
37AQI
40AQI
47AQI
49AQI
47AQI
37AQI
34AQI
32AQI
33AQI
33AQI
36AQI
37AQI
49AQI
53AQI
54AQI
48AQI
49AQI
50AQI
53AQI
47AQI
41AQI
49AQI
42AQI
41AQI
47AQI
48AQI
46AQI
45AQI
47AQI
52AQI
53AQI
48AQI
46AQI
55AQI
48AQI
44AQI
44AQI
43AQI
48AQI
46AQI
50AQI
52AQI
53AQI
41AQI
43AQI
45AQI
30AQI
32AQI
39AQI
42AQI
40AQI
36AQI
38AQI
42AQI
39AQI
35AQI
37AQI
33AQI
28AQI
31AQI
26AQI
29AQI
24AQI
21AQI
27AQI
28AQI
28AQI
33AQI
36AQI
25AQI
20AQI
26AQI
30AQI
38AQI
52AQI
61AQI
67AQI
54AQI
55AQI
58AQI
68AQI
56AQI
61AQI
70AQI
66AQI
65AQI
45AQI
40AQI
48AQI
47AQI
45AQI
36AQI
46AQI
48AQI
33AQI
59AQI
No. of days
202544AQI
Highest AQI recorded in
October59AQI
Lowest AQI recorded in
September33AQI
202440AQI
Highest AQI recorded in
April53AQI
Lowest AQI recorded in
July26AQI
202342AQI
Highest AQI recorded in
April54AQI
Lowest AQI recorded in
August33AQI
202241AQI
Highest AQI recorded in
March51AQI
Lowest AQI recorded in
October36AQI
202140AQI
Highest AQI recorded in
May47AQI
Lowest AQI recorded in
August29AQI
202040AQI
Highest AQI recorded in
April47AQI
Lowest AQI recorded in
September0AQI
Most & Least Polluted Years Over the Last 6 Years
Fukuishicho's annual 2025 AQI (44) shows an average percentage change of 8.1% (worsened AQI) compared to previous years: 2020 (40), 2021 (40), 2022 (41), 2023 (42), 2024 (40).