Yokomachi, Miyako, 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
Yokomachi, Miyako, Iwate, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (10th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 26 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: 11th Aug - 12th Aug 2025
Yokomachi, Miyako, Iwate, Japan
4 AM11th Aug 2025
6 PM
3 AM12th Aug 2025
AQI
AQI
29AQI
15AQI
In the last 24 hours,
Yokomachi's AQI reached its highest point of 29 at 7 AM during the Night, while the lowest point, undefined, was recorded at 3 AM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Yokomachi, Miyako, Iwate, Japan
20°C14/25°C
21°C17/26°C
23°C21/25°C
23°C20/28°C
23°C20/26°C
24°C21/29°C
24°C21/29°C
24°C21/29°C
25°C21/29°C
26°C22/31°C
25°C22/30°C
25°C22/29°C
24°C20/28°C
23°C20/27°C
25°C21/30°C
24°C21/28°C
24°C21/29°C
23°C20/28°C
23°C19/27°C
23°C19/27°C
25°C22/29°C
24°C21/28°C
26°C22/31°C
25°C22/29°C
24°C21/29°C
24°C20/28°C
23°C18/29°C
22°C18/26°C
22°C19/27°C
--°C/°C
--°C/°C
39AQI
28AQI
40AQI
29AQI
2025 Days Vs Air Quality
Yokomachi, Miyako, Iwate, Japan
99%
219
1%
3
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Under WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 223 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
Yokomachi, Miyako, Iwate, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
27AQI
25AQI
25AQI
26AQI
27AQI
26AQI
26AQI
25AQI
25AQI
25AQI
24AQI
25AQI
32AQI
27AQI
27AQI
24AQI
25AQI
26AQI
32AQI
33AQI
31AQI
31AQI
33AQI
30AQI
30AQI
25AQI
27AQI
27AQI
28AQI
29AQI
27AQI
27AQI
26AQI
29AQI
29AQI
30AQI
33AQI
30AQI
28AQI
29AQI
29AQI
31AQI
30AQI
31AQI
30AQI
34AQI
47AQI
30AQI
35AQI
27AQI
27AQI
28AQI
28AQI
27AQI
32AQI
39AQI
33AQI
50AQI
49AQI
60AQI
40AQI
42AQI
29AQI
31AQI
30AQI
30AQI
31AQI
34AQI
39AQI
42AQI
47AQI
40AQI
36AQI
27AQI
21AQI
23AQI
20AQI
31AQI
40AQI
49AQI
33AQI
38AQI
59AQI
51AQI
49AQI
43AQI
32AQI
31AQI
28AQI
26AQI
26AQI
21AQI
23AQI
23AQI
26AQI
24AQI
24AQI
24AQI
28AQI
33AQI
25AQI
28AQI
24AQI
26AQI
23AQI
33AQI
34AQI
34AQI
30AQI
30AQI
25AQI
25AQI
22AQI
25AQI
46AQI
38AQI
37AQI
24AQI
24AQI
23AQI
23AQI
27AQI
25AQI
26AQI
23AQI
24AQI
30AQI
30AQI
25AQI
25AQI
29AQI
29AQI
32AQI
34AQI
39AQI
31AQI
36AQI
41AQI
42AQI
39AQI
37AQI
33AQI
31AQI
24AQI
24AQI
27AQI
30AQI
30AQI
32AQI
25AQI
26AQI
30AQI
29AQI
26AQI
30AQI
28AQI
43AQI
45AQI
48AQI
40AQI
36AQI
32AQI
40AQI
35AQI
28AQI
28AQI
34AQI
38AQI
43AQI
37AQI
40AQI
43AQI
39AQI
43AQI
41AQI
30AQI
31AQI
30AQI
31AQI
34AQI
37AQI
35AQI
45AQI
48AQI
43AQI
43AQI
47AQI
45AQI
46AQI
41AQI
37AQI
36AQI
38AQI
33AQI
33AQI
38AQI
36AQI
38AQI
37AQI
38AQI
34AQI
32AQI
35AQI
32AQI
34AQI
37AQI
34AQI
33AQI
35AQI
35AQI
33AQI
34AQI
32AQI
33AQI
36AQI
33AQI
34AQI
29AQI
26AQI
26AQI
26AQI
27AQI
31AQI
37AQI
28AQI
30AQI
35AQI
38AQI
31AQI
No. of days
202532AQI
Highest AQI recorded in
July38AQI
Lowest AQI recorded in
January27AQI
202433AQI
Highest AQI recorded in
April49AQI
Lowest AQI recorded in
December25AQI
202334AQI
Highest AQI recorded in
March48AQI
Lowest AQI recorded in
September25AQI
202232AQI
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
December26AQI
202131AQI
Highest AQI recorded in
June41AQI
Lowest AQI recorded in
January19AQI
202030AQI
Highest AQI recorded in
August43AQI
Lowest AQI recorded in
December22AQI
Most & Least Polluted Years Over the Last 6 Years
Yokomachi's annual 2025 AQI (32) shows an average percentage change of 1.2% (worsened AQI) compared to previous years: 2020 (30), 2021 (31), 2022 (32), 2023 (34), 2024 (33).