Karatsu, Imaricho Ko, Saga, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Karatsu, Imaricho Ko, Saga, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (7th August ):
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: 7th Aug - 8th Aug 2025
Karatsu, Imaricho Ko, Saga, Japan
5 AM7th Aug 2025
7 PM
4 AM8th Aug 2025
63AQI
38AQI
56AQI
47AQI
In the last 24 hours,
Karatsu's AQI reached its highest point of 63 at 1 PM during the Day, while the lowest point, 38, was recorded at 9 AM during the Day between 7th Aug and 8th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Karatsu, Imaricho Ko, Saga, Japan
27°C25/31°C
27°C25/30°C
27°C25/29°C
26°C25/29°C
27°C26/30°C
25°C24/26°C
25°C23/28°C
27°C24/31°C
27°C25/31°C
25°C24/26°C
26°C24/29°C
27°C25/31°C
27°C25/31°C
27°C25/30°C
28°C26/30°C
28°C26/31°C
28°C26/32°C
29°C26/33°C
29°C26/33°C
28°C25/32°C
28°C25/31°C
28°C25/32°C
28°C25/31°C
28°C26/31°C
28°C25/30°C
28°C25/32°C
29°C26/32°C
30°C27/33°C
29°C27/33°C
28°C26/30°C
--°C/°C
44AQI
34AQI
43AQI
43AQI
2025 Days Vs Air Quality
Karatsu, Imaricho Ko, Saga, Japan
81%
177
19%
42
Total number of days with different AQI categories in last 220 days in 2025 (145 days remaining)
Under WHO’s Safe Air Quality Limits: 81%
Health Risk Level:
Low
In 2025, 81% of 220 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
Karatsu, Imaricho Ko, Saga, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
43AQI
34AQI
36AQI
32AQI
51AQI
31AQI
41AQI
30AQI
33AQI
30AQI
33AQI
38AQI
45AQI
43AQI
38AQI
52AQI
50AQI
48AQI
63AQI
76AQI
77AQI
69AQI
70AQI
45AQI
45AQI
41AQI
36AQI
34AQI
35AQI
42AQI
42AQI
36AQI
44AQI
33AQI
41AQI
32AQI
37AQI
32AQI
33AQI
32AQI
41AQI
37AQI
34AQI
38AQI
32AQI
38AQI
42AQI
34AQI
38AQI
34AQI
34AQI
40AQI
38AQI
37AQI
36AQI
56AQI
59AQI
61AQI
52AQI
38AQI
42AQI
32AQI
34AQI
32AQI
36AQI
39AQI
46AQI
45AQI
50AQI
52AQI
52AQI
42AQI
31AQI
33AQI
47AQI
47AQI
45AQI
55AQI
56AQI
65AQI
62AQI
54AQI
63AQI
59AQI
46AQI
59AQI
49AQI
39AQI
42AQI
39AQI
35AQI
33AQI
38AQI
40AQI
43AQI
40AQI
40AQI
53AQI
49AQI
57AQI
50AQI
50AQI
52AQI
34AQI
49AQI
41AQI
49AQI
40AQI
41AQI
35AQI
32AQI
25AQI
33AQI
50AQI
45AQI
48AQI
41AQI
47AQI
51AQI
43AQI
40AQI
44AQI
40AQI
43AQI
35AQI
34AQI
40AQI
31AQI
35AQI
47AQI
53AQI
57AQI
58AQI
56AQI
60AQI
36AQI
52AQI
51AQI
38AQI
32AQI
36AQI
41AQI
27AQI
34AQI
32AQI
41AQI
48AQI
47AQI
42AQI
40AQI
49AQI
53AQI
39AQI
45AQI
44AQI
46AQI
56AQI
68AQI
41AQI
33AQI
40AQI
36AQI
35AQI
27AQI
26AQI
28AQI
29AQI
34AQI
31AQI
27AQI
24AQI
21AQI
22AQI
20AQI
20AQI
32AQI
27AQI
26AQI
26AQI
29AQI
50AQI
57AQI
54AQI
62AQI
50AQI
44AQI
39AQI
50AQI
56AQI
59AQI
56AQI
49AQI
44AQI
39AQI
45AQI
49AQI
51AQI
33AQI
36AQI
33AQI
41AQI
39AQI
45AQI
40AQI
29AQI
26AQI
25AQI
27AQI
26AQI
32AQI
32AQI
46AQI
49AQI
50AQI
45AQI
44AQI
45AQI
47AQI
44AQI
39AQI
47AQI
43AQI
42AQI
34AQI
43AQI
47AQI
No. of days
202542AQI
Highest AQI recorded in
March47AQI
Lowest AQI recorded in
June34AQI
202439AQI
Highest AQI recorded in
April51AQI
Lowest AQI recorded in
July21AQI
202342AQI
Highest AQI recorded in
March52AQI
Lowest AQI recorded in
August32AQI
202243AQI
Highest AQI recorded in
March53AQI
Lowest AQI recorded in
June35AQI
202140AQI
Highest AQI recorded in
May47AQI
Lowest AQI recorded in
August29AQI
202042AQI
Highest AQI recorded in
August53AQI
Lowest AQI recorded in
July23AQI
Most & Least Polluted Years Over the Last 6 Years
Karatsu's annual 2025 AQI (42) shows an average percentage change of 1.9% (worsened AQI) compared to previous years: 2020 (42), 2021 (40), 2022 (43), 2023 (42), 2024 (39).