• October 21, 2026
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Last updated on October 1st, 2026 at 09:46 am

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Air Quality Shimane Prefecture

Shimane Prefecture AQI – Detailed Air Quality

Display current air quality index and forecast for the upcoming days in Shimane Prefecture.

Today’s Air Quality Index (AQI)
Real-time PM2.5, PM10 air pollution level in Matsue, Shimane Capital
10:50 AM, October 21, 2026
Last updated on: 10:50 AM
Live AQI 48
Air Quality is Good
PM₂.₅: 9.51µg/m³ PM₁₀: 10.89µg/m³
Good Air is clean and safe. No health risks expected. Everyone can enjoy outdoor activities without concern.
Good Moderate Poor Unhealthy Severe Hazardous 0 50 100 150 200 250 300+
Air Quality Hourly Forecast
18
Min at 9:00 AM on Oct 22
60
Max at 10:00 PM on Oct 21, 2026

Shimane Prefecture Historical Air Quality Data

Display historical AQI data calendar by selecting a specific date and location Shimane Prefecture.

Matsue, Shimane Capital Historical Air Quality Data

Explore historical AQI data and pollutant changes over time.
Oct 21, 2026 10:50 AM
SUNMONTUEWEDTHUFRISAT
30
77
Moderate
PM2.5: 18
AQI
77
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 18 µg/m3
PM₁₀ 20 µg/m3
SO₂ 4 µg/m3
NO₂ 9 µg/m3
O₃ 35 µg/m3
CO 115 µg/m3
AQI Hourly Forecast Graph
48
Min at 6:00 AM on Aug 30
111
Max at 12:00 AM on Aug 30, 2026
31
74
Moderate
PM2.5: 17
AQI
74
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 17 µg/m3
PM₁₀ 20 µg/m3
SO₂ 5 µg/m3
NO₂ 8 µg/m3
O₃ 65 µg/m3
CO 128 µg/m3
AQI Hourly Forecast Graph
12
Min at 10:00 PM on Aug 31
130
Max at 7:00 AM on Aug 31, 2026
01
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 6 µg/m3
SO₂ 3 µg/m3
NO₂ 5 µg/m3
O₃ 54 µg/m3
CO 100 µg/m3
AQI Hourly Forecast Graph
7
Min at 5:00 PM on Sep 1
54
Max at 6:00 AM on Sep 1, 2026
02
40
Good
PM2.5: 8
AQI
40
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 8 µg/m3
PM₁₀ 9 µg/m3
SO₂ 7 µg/m3
NO₂ 17 µg/m3
O₃ 40 µg/m3
CO 173 µg/m3
AQI Hourly Forecast Graph
13
Min at 1:00 AM on Sep 2
53
Max at 6:00 AM on Sep 2, 2026
03
25
Good
PM2.5: 5
AQI
25
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 5 µg/m3
PM₁₀ 6 µg/m3
SO₂ 5 µg/m3
NO₂ 20 µg/m3
O₃ 20 µg/m3
CO 162 µg/m3
AQI Hourly Forecast Graph
19
Min at 11:00 PM on Sep 3
53
Max at 1:00 AM on Sep 3, 2026
04
15
Good
PM2.5: 3
AQI
15
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 3 µg/m3
PM₁₀ 4 µg/m3
SO₂ 2 µg/m3
NO₂ 11 µg/m3
O₃ 40 µg/m3
CO 143 µg/m3
AQI Hourly Forecast Graph
11
Min at 12:00 PM on Sep 4
22
Max at 3:00 AM on Sep 4, 2026
05
10
Good
PM2.5: 2
AQI
10
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 2 µg/m3
PM₁₀ 4 µg/m3
SO₂ 2 µg/m3
NO₂ 4 µg/m3
O₃ 81 µg/m3
CO 141 µg/m3
AQI Hourly Forecast Graph
9
Min at 2:00 PM on Sep 5
15
Max at 7:00 AM on Sep 5, 2026
06
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 6 µg/m3
SO₂ 2 µg/m3
NO₂ 4 µg/m3
O₃ 83 µg/m3
CO 138 µg/m3
AQI Hourly Forecast Graph
14
Min at 1:00 AM on Sep 6
27
Max at 3:00 PM on Sep 6, 2026
07
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 8 µg/m3
SO₂ 3 µg/m3
NO₂ 6 µg/m3
O₃ 70 µg/m3
CO 161 µg/m3
AQI Hourly Forecast Graph
18
Min at 11:00 AM on Sep 7
25
Max at 8:00 AM on Sep 7, 2026
08
15
Good
PM2.5: 3
AQI
15
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 3 µg/m3
PM₁₀ 4 µg/m3
SO₂ 2 µg/m3
NO₂ 6 µg/m3
O₃ 63 µg/m3
CO 163 µg/m3
AQI Hourly Forecast Graph
10
Min at 5:00 PM on Sep 8
22
Max at 1:00 AM on Sep 8, 2026
09
15
Good
PM2.5: 3
AQI
15
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 3 µg/m3
PM₁₀ 9 µg/m3
SO₂ 1 µg/m3
NO₂ 3 µg/m3
O₃ 77 µg/m3
CO 193 µg/m3
AQI Hourly Forecast Graph
12
Min at 1:00 AM on Sep 9
18
Max at 10:00 AM on Sep 9, 2026
10
30
Good
PM2.5: 6
AQI
30
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 6 µg/m3
PM₁₀ 13 µg/m3
SO₂ 4 µg/m3
NO₂ 8 µg/m3
O₃ 81 µg/m3
CO 205 µg/m3
AQI Hourly Forecast Graph
14
Min at 1:00 AM on Sep 10
49
Max at 11:00 PM on Sep 10, 2026
11
58
Moderate
PM2.5: 12
AQI
58
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 12 µg/m3
PM₁₀ 15 µg/m3
SO₂ 6 µg/m3
NO₂ 14 µg/m3
O₃ 70 µg/m3
CO 261 µg/m3
AQI Hourly Forecast Graph
33
Min at 12:00 AM on Sep 11
73
Max at 8:00 AM on Sep 11, 2026
12
64
Moderate
PM2.5: 14
AQI
64
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 14 µg/m3
PM₁₀ 16 µg/m3
SO₂ 5 µg/m3
NO₂ 10 µg/m3
O₃ 78 µg/m3
CO 239 µg/m3
AQI Hourly Forecast Graph
33
Min at 1:00 AM on Sep 12
80
Max at 9:00 PM on Sep 12, 2026
13
45
Good
PM2.5: 9
AQI
45
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 9 µg/m3
PM₁₀ 10 µg/m3
SO₂ 4 µg/m3
NO₂ 8 µg/m3
O₃ 56 µg/m3
CO 177 µg/m3
AQI Hourly Forecast Graph
19
Min at 8:00 PM on Sep 13
82
Max at 4:00 AM on Sep 13, 2026
14
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 5 µg/m3
SO₂ 4 µg/m3
NO₂ 11 µg/m3
O₃ 25 µg/m3
CO 144 µg/m3
AQI Hourly Forecast Graph
15
Min at 11:00 PM on Sep 14
29
Max at 8:00 AM on Sep 14, 2026
15
25
Good
PM2.5: 5
AQI
25
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 5 µg/m3
PM₁₀ 5 µg/m3
SO₂ 4 µg/m3
NO₂ 14 µg/m3
O₃ 50 µg/m3
CO 200 µg/m3
AQI Hourly Forecast Graph
16
Min at 1:00 AM on Sep 15
33
Max at 8:00 AM on Sep 15, 2026
16
15
Good
PM2.5: 3
AQI
15
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 3 µg/m3
PM₁₀ 5 µg/m3
SO₂ 3 µg/m3
NO₂ 6 µg/m3
O₃ 69 µg/m3
CO 147 µg/m3
AQI Hourly Forecast Graph
12
Min at 3:00 PM on Sep 16
19
Max at 3:00 AM on Sep 16, 2026
17
25
Good
PM2.5: 5
AQI
25
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 5 µg/m3
PM₁₀ 10 µg/m3
SO₂ 4 µg/m3
NO₂ 7 µg/m3
O₃ 87 µg/m3
CO 141 µg/m3
AQI Hourly Forecast Graph
15
Min at 1:00 AM on Sep 17
33
Max at 7:00 AM on Sep 17, 2026
18
45
Good
PM2.5: 9
AQI
45
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 9 µg/m3
PM₁₀ 9 µg/m3
SO₂ 4 µg/m3
NO₂ 13 µg/m3
O₃ 59 µg/m3
CO 176 µg/m3
AQI Hourly Forecast Graph
34
Min at 1:00 AM on Sep 18
53
Max at 11:00 PM on Sep 18, 2026
19
40
Good
PM2.5: 8
AQI
40
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 8 µg/m3
PM₁₀ 8 µg/m3
SO₂ 3 µg/m3
NO₂ 6 µg/m3
O₃ 71 µg/m3
CO 150 µg/m3
AQI Hourly Forecast Graph
8
Min at 12:00 AM on Sep 19
73
Max at 7:00 AM on Sep 19, 2026
20
10
Good
PM2.5: 2
AQI
10
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 2 µg/m3
PM₁₀ 4 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 74 µg/m3
CO 118 µg/m3
AQI Hourly Forecast Graph
8
Min at 1:00 AM on Sep 20
15
Max at 11:00 PM on Sep 20, 2026
21
30
Good
PM2.5: 6
AQI
30
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 6 µg/m3
PM₁₀ 15 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 88 µg/m3
CO 123 µg/m3
AQI Hourly Forecast Graph
13
Min at 3:00 AM on Sep 21
42
Max at 6:00 PM on Sep 21, 2026
22
25
Good
PM2.5: 5
AQI
25
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 5 µg/m3
PM₁₀ 13 µg/m3
SO₂ 3 µg/m3
NO₂ 6 µg/m3
O₃ 75 µg/m3
CO 153 µg/m3
AQI Hourly Forecast Graph
15
Min at 5:00 PM on Sep 22
42
Max at 7:00 AM on Sep 22, 2026
23
50
Good
PM2.5: 10
AQI
50
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 10 µg/m3
PM₁₀ 19 µg/m3
SO₂ 7 µg/m3
NO₂ 13 µg/m3
O₃ 65 µg/m3
CO 187 µg/m3
AQI Hourly Forecast Graph
18
Min at 1:00 AM on Sep 23
68
Max at 9:00 AM on Sep 23, 2026
24
45
Good
PM2.5: 9
AQI
45
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 9 µg/m3
PM₁₀ 16 µg/m3
SO₂ 5 µg/m3
NO₂ 12 µg/m3
O₃ 65 µg/m3
CO 177 µg/m3
AQI Hourly Forecast Graph
28
Min at 12:00 AM on Sep 24
63
Max at 8:00 AM on Sep 24, 2026
25
45
Good
PM2.5: 9
AQI
45
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 9 µg/m3
PM₁₀ 13 µg/m3
SO₂ 7 µg/m3
NO₂ 15 µg/m3
O₃ 63 µg/m3
CO 183 µg/m3
AQI Hourly Forecast Graph
28
Min at 1:00 AM on Sep 25
56
Max at 8:00 PM on Sep 25, 2026
26
45
Good
PM2.5: 9
AQI
45
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 9 µg/m3
PM₁₀ 9 µg/m3
SO₂ 4 µg/m3
NO₂ 15 µg/m3
O₃ 46 µg/m3
CO 181 µg/m3
AQI Hourly Forecast Graph
37
Min at 10:00 AM on Sep 26
58
Max at 1:00 AM on Sep 26, 2026
27
40
Good
PM2.5: 8
AQI
40
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 8 µg/m3
PM₁₀ 9 µg/m3
SO₂ 3 µg/m3
NO₂ 8 µg/m3
O₃ 46 µg/m3
CO 147 µg/m3
AQI Hourly Forecast Graph
28
Min at 10:00 AM on Sep 27
57
Max at 5:00 PM on Sep 27, 2026
28
35
Good
PM2.5: 7
AQI
35
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 7 µg/m3
PM₁₀ 8 µg/m3
SO₂ 3 µg/m3
NO₂ 12 µg/m3
O₃ 33 µg/m3
CO 215 µg/m3
AQI Hourly Forecast Graph
29
Min at 8:00 PM on Sep 28
49
Max at 1:00 AM on Sep 28, 2026
29
25
Good
PM2.5: 5
AQI
25
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 5 µg/m3
PM₁₀ 6 µg/m3
SO₂ 3 µg/m3
NO₂ 11 µg/m3
O₃ 56 µg/m3
CO 207 µg/m3
AQI Hourly Forecast Graph
25
Min at 7:00 AM on Sep 29
33
Max at 2:00 AM on Sep 29, 2026
30
67
Moderate
PM2.5: 15
AQI
67
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 15 µg/m3
PM₁₀ 19 µg/m3
SO₂ 8 µg/m3
NO₂ 16 µg/m3
O₃ 67 µg/m3
CO 217 µg/m3
AQI Hourly Forecast Graph
25
Min at 1:00 AM on Sep 30
94
Max at 4:00 PM on Sep 30, 2026
01
58
Moderate
PM2.5: 12
AQI
58
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 12 µg/m3
PM₁₀ 18 µg/m3
SO₂ 4 µg/m3
NO₂ 6 µg/m3
O₃ 87 µg/m3
CO 192 µg/m3
AQI Hourly Forecast Graph
20
Min at 12:00 AM on Oct 1
85
Max at 8:00 AM on Oct 1, 2026
02
35
Good
PM2.5: 7
AQI
35
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 7 µg/m3
PM₁₀ 13 µg/m3
SO₂ 3 µg/m3
NO₂ 4 µg/m3
O₃ 77 µg/m3
CO 172 µg/m3
AQI Hourly Forecast Graph
15
Min at 12:00 AM on Oct 2
51
Max at 10:00 AM on Oct 2, 2026
03
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 8 µg/m3
SO₂ 3 µg/m3
NO₂ 5 µg/m3
O₃ 85 µg/m3
CO 154 µg/m3
AQI Hourly Forecast Graph
14
Min at 1:00 AM on Oct 3
23
Max at 12:00 AM on Oct 3, 2026

Shimane Prefecture Historical Weather Data

Display historical weather data by selecting a specific date and location Shimane Prefecture.

Display historical weather data by selecting a specific date and location Shimane Prefecture.

Matsue, Shimane CapitalOct 20, 2026
weather image
20 °C | °F
Heavy rain at times
Max 21 °
Min 17 °
Humidity 94 %
Wind 69 Km/h
Visibility 7 km
UV Index 0.5
Sunrise 6:18 AM
Sunset 5:26 PM
Moonrise 2:26 PM
Moonset 12:17 AM
Moon Phase 77
Precipitation 17.83 mm
Snow 0 mm/h
Rain Chance 100%
Historical Weather from WeatherAPI

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