Kamaishi, Iwate, 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
Kamaishi, Iwate, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 34 of Good air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Kamaishi, Iwate, Japan
4 AM2nd Aug 2025
6 PM
3 AM3rd Aug 2025
41AQI
21AQI
39AQI
27AQI
In the last 24 hours,
Kamaishi's AQI reached its highest point of 41 at 4 AM during the Day, while the lowest point, 21, was recorded at 9 AM during the Day between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Kamaishi, Iwate, Japan
24°C20/29°C
23°C20/27°C
24°C19/28°C
25°C21/29°C
24°C21/28°C
22°C19/26°C
19°C14/24°C
16°C13/19°C
16°C12/20°C
20°C14/26°C
22°C19/26°C
22°C21/24°C
23°C20/27°C
23°C20/27°C
24°C20/30°C
24°C21/29°C
25°C21/30°C
26°C22/32°C
26°C22/32°C
26°C22/31°C
25°C21/30°C
25°C21/30°C
24°C21/29°C
25°C21/30°C
25°C21/29°C
25°C21/31°C
24°C19/29°C
23°C19/28°C
23°C19/28°C
25°C22/30°C
--°C/°C
45AQI
38AQI
44AQI
42AQI
2025 Days Vs Air Quality
Kamaishi, Iwate, Japan
95%
204
5%
10
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2025, 95% of 215 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
Kamaishi, Iwate, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
26AQI
24AQI
24AQI
24AQI
25AQI
24AQI
25AQI
24AQI
23AQI
23AQI
22AQI
23AQI
30AQI
25AQI
25AQI
23AQI
24AQI
25AQI
27AQI
34AQI
30AQI
32AQI
34AQI
30AQI
29AQI
26AQI
26AQI
27AQI
26AQI
28AQI
26AQI
25AQI
25AQI
28AQI
28AQI
29AQI
32AQI
28AQI
27AQI
28AQI
29AQI
28AQI
30AQI
30AQI
29AQI
31AQI
46AQI
29AQI
35AQI
27AQI
27AQI
27AQI
28AQI
27AQI
30AQI
38AQI
33AQI
50AQI
48AQI
61AQI
39AQI
48AQI
29AQI
32AQI
29AQI
30AQI
30AQI
33AQI
36AQI
40AQI
46AQI
37AQI
34AQI
25AQI
20AQI
24AQI
20AQI
28AQI
40AQI
49AQI
31AQI
34AQI
56AQI
48AQI
51AQI
45AQI
32AQI
32AQI
29AQI
25AQI
22AQI
19AQI
19AQI
22AQI
25AQI
22AQI
26AQI
22AQI
30AQI
36AQI
24AQI
28AQI
20AQI
22AQI
22AQI
35AQI
33AQI
37AQI
33AQI
30AQI
28AQI
25AQI
22AQI
24AQI
48AQI
42AQI
39AQI
24AQI
21AQI
20AQI
21AQI
27AQI
25AQI
28AQI
24AQI
21AQI
30AQI
30AQI
21AQI
22AQI
28AQI
29AQI
34AQI
32AQI
45AQI
31AQI
39AQI
43AQI
45AQI
42AQI
39AQI
38AQI
31AQI
23AQI
24AQI
27AQI
28AQI
32AQI
31AQI
21AQI
23AQI
35AQI
34AQI
26AQI
32AQI
35AQI
49AQI
53AQI
54AQI
43AQI
39AQI
35AQI
36AQI
33AQI
26AQI
29AQI
29AQI
37AQI
42AQI
37AQI
38AQI
42AQI
39AQI
38AQI
38AQI
32AQI
34AQI
34AQI
35AQI
40AQI
41AQI
44AQI
52AQI
52AQI
48AQI
49AQI
52AQI
53AQI
52AQI
47AQI
44AQI
43AQI
46AQI
42AQI
39AQI
44AQI
44AQI
48AQI
44AQI
48AQI
39AQI
37AQI
38AQI
39AQI
42AQI
44AQI
37AQI
40AQI
43AQI
39AQI
35AQI
34AQI
34AQI
26AQI
30AQI
37AQI
28AQI
30AQI
37AQI
44AQI
34AQI
No. of days
202533AQI
Highest AQI recorded in
July44AQI
Lowest AQI recorded in
January26AQI
202429AQI
Highest AQI recorded in
April39AQI
Lowest AQI recorded in
September22AQI
202330AQI
Highest AQI recorded in
April43AQI
Lowest AQI recorded in
October20AQI
202231AQI
Highest AQI recorded in
May42AQI
Lowest AQI recorded in
December22AQI
202129AQI
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
December23AQI
202029AQI
Highest AQI recorded in
August45AQI
Lowest AQI recorded in
December22AQI
Most & Least Polluted Years Over the Last 6 Years
Kamaishi's annual 2025 AQI (33) shows an average percentage change of 11.7% (worsened AQI) compared to previous years: 2020 (29), 2021 (29), 2022 (31), 2023 (30), 2024 (29).