• October 11, 2026
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Last updated on October 1st, 2026 at 09:46 am

Air Quality Yamanashi Prefecture

Yamanashi Prefecture AQI – Detailed Air Quality

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

Today’s Air Quality Index (AQI)
Real-time PM2.5, PM10 air pollution level in Kōfu, Yamanashi Capital
4:44 AM, October 11, 2026
Last updated on: 4:44 AM
Live AQI 108
Air Quality is Poor
PM₂.₅: 28.77µg/m³ PM₁₀: 34.9µg/m³
Poor Air quality is poor. Sensitive individuals may experience symptoms such as coughing or throat irritation. Limit outdoor activity.
Good Moderate Poor Unhealthy Severe Hazardous 0 50 100 150 200 250 300+
Air Quality Hourly Forecast
107
Min at 8:00 AM on Oct 10
123
Max at 3:00 AM on Oct 11, 2026

Yamanashi Prefecture Historical Air Quality Data

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

Kōfu, Yamanashi Capital Historical Air Quality Data

Explore historical AQI data and pollutant changes over time.
Oct 11, 2026 4:44 AM
SUNMONTUEWEDTHUFRISAT
30
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 16 µg/m3
SO₂ 1 µg/m3
NO₂ 4 µg/m3
O₃ 50 µg/m3
CO 95 µg/m3
AQI Hourly Forecast Graph
29
Min at 1:00 PM on Aug 30
52
Max at 12:00 AM on Aug 30, 2026
31
71
Moderate
PM2.5: 16
AQI
71
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 16 µg/m3
PM₁₀ 28 µg/m3
SO₂ 7 µg/m3
NO₂ 9 µg/m3
O₃ 74 µg/m3
CO 155 µg/m3
AQI Hourly Forecast Graph
52
Min at 7:00 PM on Aug 31
111
Max at 6:00 AM on Aug 31, 2026
01
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 16 µg/m3
SO₂ 4 µg/m3
NO₂ 3 µg/m3
O₃ 89 µg/m3
CO 131 µg/m3
AQI Hourly Forecast Graph
25
Min at 7:00 PM on Sep 1
60
Max at 6:00 AM on Sep 1, 2026
02
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 8 µg/m3
SO₂ 2 µg/m3
NO₂ 2 µg/m3
O₃ 69 µg/m3
CO 115 µg/m3
AQI Hourly Forecast Graph
26
Min at 6:00 AM on Sep 2
28
Max at 1:00 AM on Sep 2, 2026
03
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 7 µg/m3
SO₂ 2 µg/m3
NO₂ 8 µg/m3
O₃ 47 µg/m3
CO 128 µg/m3
AQI Hourly Forecast Graph
20
Min at 3:00 AM on Sep 3
42
Max at 8:00 PM on Sep 3, 2026
04
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 6 µg/m3
SO₂ 2 µg/m3
NO₂ 10 µg/m3
O₃ 37 µg/m3
CO 136 µg/m3
AQI Hourly Forecast Graph
9
Min at 7:00 AM on Sep 4
54
Max at 1:00 PM on Sep 4, 2026
05
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 7 µg/m3
O₃ 72 µg/m3
CO 149 µg/m3
AQI Hourly Forecast Graph
13
Min at 12:00 AM on Sep 5
21
Max at 1:00 AM on Sep 5, 2026
06
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 3 µg/m3
SO₂ 1 µg/m3
NO₂ 4 µg/m3
O₃ 61 µg/m3
CO 151 µg/m3
AQI Hourly Forecast Graph
7
Min at 8:00 AM on Sep 6
14
Max at 12:00 AM 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 6 µg/m3
SO₂ 1 µg/m3
NO₂ 3 µg/m3
O₃ 44 µg/m3
CO 160 µg/m3
AQI Hourly Forecast Graph
13
Min at 5:00 AM on Sep 7
27
Max at 2:00 PM on Sep 7, 2026
08
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 11 µg/m3
SO₂ 1 µg/m3
NO₂ 1 µg/m3
O₃ 50 µg/m3
CO 185 µg/m3
AQI Hourly Forecast Graph
21
Min at 10:00 AM on Sep 8
39
Max at 12:00 AM on Sep 8, 2026
09
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 15 µg/m3
SO₂ 2 µg/m3
NO₂ 4 µg/m3
O₃ 69 µg/m3
CO 181 µg/m3
AQI Hourly Forecast Graph
13
Min at 12:00 AM on Sep 9
70
Max at 10:00 AM on Sep 9, 2026
10
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 3 µg/m3
NO₂ 11 µg/m3
O₃ 57 µg/m3
CO 246 µg/m3
AQI Hourly Forecast Graph
14
Min at 1:00 AM on Sep 10
23
Max at 6:00 PM on Sep 10, 2026
11
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 1 µg/m3
NO₂ 13 µg/m3
O₃ 30 µg/m3
CO 209 µg/m3
AQI Hourly Forecast Graph
17
Min at 2:00 AM on Sep 11
26
Max at 10:00 PM on Sep 11, 2026
12
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 12 µg/m3
SO₂ 4 µg/m3
NO₂ 9 µg/m3
O₃ 63 µg/m3
CO 228 µg/m3
AQI Hourly Forecast Graph
28
Min at 1:00 AM on Sep 12
57
Max at 7:00 AM on Sep 12, 2026
13
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 15 µg/m3
SO₂ 3 µg/m3
NO₂ 3 µg/m3
O₃ 55 µg/m3
CO 152 µg/m3
AQI Hourly Forecast Graph
38
Min at 7:00 PM on Sep 13
69
Max at 7:00 AM on Sep 13, 2026
14
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 51 µg/m3
CO 95 µg/m3
AQI Hourly Forecast Graph
3
Min at 5:00 PM on Sep 14
38
Max at 1:00 AM on Sep 14, 2026
15
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 2 µg/m3
SO₂ 1 µg/m3
NO₂ 3 µg/m3
O₃ 35 µg/m3
CO 97 µg/m3
AQI Hourly Forecast Graph
3
Min at 1:00 AM on Sep 15
13
Max at 12:00 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 4 µg/m3
SO₂ 2 µg/m3
NO₂ 10 µg/m3
O₃ 46 µg/m3
CO 146 µg/m3
AQI Hourly Forecast Graph
8
Min at 5:00 AM on Sep 16
29
Max at 9:00 AM on Sep 16, 2026
17
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 11 µg/m3
SO₂ 4 µg/m3
NO₂ 6 µg/m3
O₃ 90 µg/m3
CO 148 µg/m3
AQI Hourly Forecast Graph
13
Min at 1:00 AM on Sep 17
40
Max at 7:00 AM on Sep 17, 2026
18
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 9 µg/m3
SO₂ 3 µg/m3
NO₂ 5 µg/m3
O₃ 82 µg/m3
CO 138 µg/m3
AQI Hourly Forecast Graph
17
Min at 7:00 PM on Sep 18
29
Max at 6:00 AM on Sep 18, 2026
19
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 2 µg/m3
NO₂ 6 µg/m3
O₃ 69 µg/m3
CO 135 µg/m3
AQI Hourly Forecast Graph
11
Min at 9:00 AM on Sep 19
19
Max at 4:00 PM 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 3 µg/m3
SO₂ 1 µg/m3
NO₂ 6 µg/m3
O₃ 65 µg/m3
CO 140 µg/m3
AQI Hourly Forecast Graph
7
Min at 2:00 PM on Sep 20
19
Max at 12:00 AM on Sep 20, 2026
21
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 2 µg/m3
NO₂ 6 µg/m3
O₃ 48 µg/m3
CO 127 µg/m3
AQI Hourly Forecast Graph
12
Min at 2:00 PM on Sep 21
21
Max at 1:00 AM on Sep 21, 2026
22
54
Moderate
PM2.5: 11
AQI
54
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 11 µg/m3
PM₁₀ 19 µg/m3
SO₂ 4 µg/m3
NO₂ 4 µg/m3
O₃ 105 µg/m3
CO 131 µg/m3
AQI Hourly Forecast Graph
20
Min at 1:00 AM on Sep 22
76
Max at 11:00 AM on Sep 22, 2026
23
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 11 µg/m3
SO₂ 3 µg/m3
NO₂ 6 µg/m3
O₃ 79 µg/m3
CO 131 µg/m3
AQI Hourly Forecast Graph
28
Min at 7:00 PM on Sep 23
47
Max at 7:00 AM on Sep 23, 2026
24
61
Moderate
PM2.5: 13
AQI
61
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 13 µg/m3
PM₁₀ 17 µg/m3
SO₂ 3 µg/m3
NO₂ 4 µg/m3
O₃ 96 µg/m3
CO 152 µg/m3
AQI Hourly Forecast Graph
35
Min at 2:00 AM on Sep 24
81
Max at 11:00 AM on Sep 24, 2026
25
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 17 µg/m3
SO₂ 3 µg/m3
NO₂ 2 µg/m3
O₃ 104 µg/m3
CO 141 µg/m3
AQI Hourly Forecast Graph
55
Min at 1:00 PM on Sep 25
85
Max at 2:00 AM on Sep 25, 2026
26
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 2 µg/m3
NO₂ 7 µg/m3
O₃ 73 µg/m3
CO 148 µg/m3
AQI Hourly Forecast Graph
18
Min at 7:00 PM on Sep 26
56
Max at 4:00 AM on Sep 26, 2026
27
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 8 µg/m3
SO₂ 2 µg/m3
NO₂ 6 µg/m3
O₃ 62 µg/m3
CO 136 µg/m3
AQI Hourly Forecast Graph
13
Min at 12:00 AM on Sep 27
36
Max at 11:00 AM on Sep 27, 2026
28
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 1 µg/m3
NO₂ 7 µg/m3
O₃ 31 µg/m3
CO 122 µg/m3
AQI Hourly Forecast Graph
9
Min at 3:00 AM on Sep 28
22
Max at 10:00 PM on Sep 28, 2026
29
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 4 µg/m3
SO₂ 2 µg/m3
NO₂ 10 µg/m3
O₃ 54 µg/m3
CO 180 µg/m3
AQI Hourly Forecast Graph
15
Min at 5:00 PM on Sep 29
24
Max at 12:00 PM on Sep 29, 2026
30
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 8 µg/m3
SO₂ 3 µg/m3
NO₂ 10 µg/m3
O₃ 73 µg/m3
CO 166 µg/m3
AQI Hourly Forecast Graph
18
Min at 1:00 AM on Sep 30
43
Max at 12:00 AM on Sep 30, 2026
01
54
Moderate
PM2.5: 11
AQI
54
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 11 µg/m3
PM₁₀ 16 µg/m3
SO₂ 3 µg/m3
NO₂ 5 µg/m3
O₃ 106 µg/m3
CO 156 µg/m3
AQI Hourly Forecast Graph
32
Min at 12:00 AM on Oct 1
72
Max at 7:00 AM on Oct 1, 2026
02
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 12 µg/m3
SO₂ 3 µg/m3
NO₂ 6 µg/m3
O₃ 88 µg/m3
CO 170 µg/m3
AQI Hourly Forecast Graph
29
Min at 4:00 PM on Oct 2
55
Max at 9:00 AM on Oct 2, 2026
03
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 14 µg/m3
SO₂ 4 µg/m3
NO₂ 4 µg/m3
O₃ 96 µg/m3
CO 157 µg/m3
AQI Hourly Forecast Graph
23
Min at 1:00 PM on Oct 3
48
Max at 4:00 AM on Oct 3, 2026

Yamanashi Prefecture Historical Weather Data

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

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

Kōfu, Yamanashi CapitalOct 10, 2026
weather image
16 °C | °F
Sunny
Max 25 °
Min 8 °
Humidity 76 %
Wind 24 Km/h
Visibility 10 km
UV Index 3.6
Sunrise 5:48 AM
Sunset 5:17 PM
Moonrise 4:58 AM
Moonset 4:44 PM
Snow 0 mm/h
Rain Chance 0%
Historical Weather from WeatherAPI

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