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

7:32 PM, October 14, 2026

Last updated on: 7:32 PM

Live AQI 51

Air Quality is Moderate

PM₂.₅: 10.1µg/m³ PM₁₀: 12.97µg/m³

Moderate The air quality is generally acceptable for most people. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.

Air Quality Hourly Forecast

Min at 2:00 AM on Oct 14

Max at 7:00 PM on Oct 14, 2026

Yamanashi Prefecture Historical Air Quality Data

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

August

October

Kōfu, Yamanashi Capital Historical Air Quality Data

Explore historical AQI data and pollutant changes over time.

Oct 14, 2026 7:32 PM

SUNMONTUEWEDTHUFRISAT

Good

PM2.5: 7

AQI

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

Min at 1:00 PM on Aug 30

Max at 12:00 AM on Aug 30, 2026

Moderate

PM2.5: 16

AQI

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

Min at 7:00 PM on Aug 31

Max at 6:00 AM on Aug 31, 2026

Good

PM2.5: 8

AQI

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

Min at 7:00 PM on Sep 1

Max at 6:00 AM on Sep 1, 2026

Good

PM2.5: 5

AQI

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

Min at 6:00 AM on Sep 2

Max at 1:00 AM on Sep 2, 2026

Good

PM2.5: 6

AQI

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

Min at 3:00 AM on Sep 3

Max at 8:00 PM on Sep 3, 2026

Good

PM2.5: 6

AQI

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

Min at 7:00 AM on Sep 4

Max at 1:00 PM on Sep 4, 2026

Good

PM2.5: 3

AQI

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

Min at 12:00 AM on Sep 5

Max at 1:00 AM on Sep 5, 2026

Good

PM2.5: 2

AQI

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

Min at 8:00 AM on Sep 6

Max at 12:00 AM on Sep 6, 2026

Good

PM2.5: 4

AQI

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

Min at 5:00 AM on Sep 7

Max at 2:00 PM on Sep 7, 2026

Good

PM2.5: 6

AQI

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

Min at 10:00 AM on Sep 8

Max at 12:00 AM on Sep 8, 2026

Good

PM2.5: 9

AQI

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

Min at 12:00 AM on Sep 9

Max at 10:00 AM on Sep 9, 2026

Good

PM2.5: 4

AQI

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

Min at 1:00 AM on Sep 10

Max at 6:00 PM on Sep 10, 2026

Good

PM2.5: 4

AQI

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

Min at 2:00 AM on Sep 11

Max at 10:00 PM on Sep 11, 2026

Good

PM2.5: 9

AQI

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

Min at 1:00 AM on Sep 12

Max at 7:00 AM on Sep 12, 2026

Good

PM2.5: 10

AQI

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

Min at 7:00 PM on Sep 13

Max at 7:00 AM on Sep 13, 2026

Good

PM2.5: 2

AQI

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

Min at 5:00 PM on Sep 14

Max at 1:00 AM on Sep 14, 2026

Good

PM2.5: 2

AQI

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

Min at 1:00 AM on Sep 15

Max at 12:00 AM on Sep 15, 2026

Good

PM2.5: 3

AQI

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

Min at 5:00 AM on Sep 16

Max at 9:00 AM on Sep 16, 2026

Good

PM2.5: 6

AQI

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

Min at 1:00 AM on Sep 17

Max at 7:00 AM on Sep 17, 2026

Good

PM2.5: 4

AQI

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

Min at 7:00 PM on Sep 18

Max at 6:00 AM on Sep 18, 2026

Good

PM2.5: 3

AQI

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

Min at 9:00 AM on Sep 19

Max at 4:00 PM on Sep 19, 2026

Good

PM2.5: 2

AQI

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

Min at 2:00 PM on Sep 20

Max at 12:00 AM on Sep 20, 2026

Good

PM2.5: 3

AQI

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

Min at 2:00 PM on Sep 21

Max at 1:00 AM on Sep 21, 2026

Moderate

PM2.5: 11

AQI

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

Min at 1:00 AM on Sep 22

Max at 11:00 AM on Sep 22, 2026

Good

PM2.5: 7

AQI

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

Min at 7:00 PM on Sep 23

Max at 7:00 AM on Sep 23, 2026

Moderate

PM2.5: 13

AQI

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

Min at 2:00 AM on Sep 24

Max at 11:00 AM on Sep 24, 2026

Moderate

PM2.5: 14

AQI

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

Min at 1:00 PM on Sep 25

Max at 2:00 AM on Sep 25, 2026

Good

PM2.5: 7

AQI

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

Min at 7:00 PM on Sep 26

Max at 4:00 AM on Sep 26, 2026

Good

PM2.5: 6

AQI

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

Min at 12:00 AM on Sep 27

Max at 11:00 AM on Sep 27, 2026

Good

PM2.5: 3

AQI

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

Min at 3:00 AM on Sep 28

Max at 10:00 PM on Sep 28, 2026

Good

PM2.5: 4

AQI

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

Min at 5:00 PM on Sep 29

Max at 12:00 PM on Sep 29, 2026

Good

PM2.5: 6

AQI

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

Min at 1:00 AM on Sep 30

Max at 12:00 AM on Sep 30, 2026

Moderate

PM2.5: 11

AQI

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

Min at 12:00 AM on Oct 1

Max at 7:00 AM on Oct 1, 2026

Good

PM2.5: 9

AQI

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

Min at 4:00 PM on Oct 2

Max at 9:00 AM on Oct 2, 2026

Good

PM2.5: 7

AQI

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

Min at 1:00 PM on Oct 3

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.

Kōfu, Yamanashi CapitalOct 13, 2026

17 °C | °F

Overcast

Max 25 °

Min 11 °

Humidity 78 %	Wind 28 Km/h
Visibility 10 km	UV Index 3.4
Sunrise 5:50 AM	Sunset 5:13 PM
Moonrise 8:28 AM	Moonset 6:26 PM
Moon Phase 11	Snow 0 mm/h
Rain Chance 0%

Historical Weather from WeatherAPI

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