Air Quality Japan Prefecture Free 2026

Japan Prefecture Historical Air Quality Data

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

August

October

Japan Historical Air Quality Data

Explore historical AQI data and pollutant changes over time.

Oct 11, 2026 7:08 AM

SUNMONTUEWEDTHUFRISAT

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 7 µg/m3

NO₂ 20 µg/m3

O₃ 41 µg/m3

CO 176 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Aug 30

Max at 10:00 PM on Aug 30, 2026

Moderate

PM2.5: 20

AQI

Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.

PM₂.₅ 20 µg/m3

PM₁₀ 26 µg/m3

SO₂ 10 µg/m3

NO₂ 30 µg/m3

O₃ 41 µg/m3

CO 219 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 AM on Aug 31

Max at 3:00 AM on Aug 31, 2026

Moderate

PM2.5: 21

AQI

Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.

PM₂.₅ 21 µg/m3

PM₁₀ 27 µg/m3

SO₂ 10 µg/m3

NO₂ 20 µg/m3

O₃ 73 µg/m3

CO 215 µg/m3

AQI Hourly Forecast Graph

Min at 2:00 AM on Sep 1

Max at 9:00 PM on Sep 1, 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 19 µg/m3

SO₂ 6 µg/m3

NO₂ 11 µg/m3

O₃ 81 µg/m3

CO 188 µg/m3

AQI Hourly Forecast Graph

Min at 2:00 PM on Sep 2

Max at 1:00 AM on Sep 2, 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 11 µg/m3

SO₂ 4 µg/m3

NO₂ 15 µg/m3

O₃ 47 µg/m3

CO 172 µg/m3

AQI Hourly Forecast Graph

Min at 8:00 AM on Sep 3

Max at 12:00 AM on Sep 3, 2026

Moderate

PM2.5: 17

AQI

Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.

PM₂.₅ 17 µg/m3

PM₁₀ 17 µg/m3

SO₂ 5 µg/m3

NO₂ 24 µg/m3

O₃ 36 µg/m3

CO 202 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 AM on Sep 4

Max at 11:00 AM on Sep 4, 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 4 µg/m3

NO₂ 14 µg/m3

O₃ 51 µg/m3

CO 171 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 AM on Sep 5

Max at 3:00 PM 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 2 µg/m3

NO₂ 7 µg/m3

O₃ 40 µg/m3

CO 156 µg/m3

AQI Hourly Forecast Graph

Min at 3:00 PM on Sep 6

Max at 1:00 AM on Sep 6, 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 6 µg/m3

SO₂ 5 µg/m3

NO₂ 18 µg/m3

O₃ 30 µg/m3

CO 212 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Sep 7

Max at 1:00 PM on Sep 7, 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 2 µg/m3

NO₂ 6 µg/m3

O₃ 34 µg/m3

CO 190 µg/m3

AQI Hourly Forecast Graph

Min at 2:00 PM on Sep 8

Max at 6:00 AM on Sep 8, 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 9 µg/m3

O₃ 41 µg/m3

CO 181 µg/m3

AQI Hourly Forecast Graph

Min at 8:00 PM on Sep 9

Max at 1:00 PM on Sep 9, 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 9 µg/m3

SO₂ 5 µg/m3

NO₂ 24 µg/m3

O₃ 32 µg/m3

CO 282 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: 8

AQI

Air Quality is Good Air quality is excellent. No health concerns for any group.

PM₂.₅ 8 µg/m3

PM₁₀ 9 µg/m3

SO₂ 5 µg/m3

NO₂ 29 µg/m3

O₃ 21 µg/m3

CO 279 µg/m3

AQI Hourly Forecast Graph

Min at 3:00 AM on Sep 11

Max at 12:00 AM on Sep 11, 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 16 µg/m3

SO₂ 6 µg/m3

NO₂ 22 µg/m3

O₃ 35 µg/m3

CO 271 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 PM on Sep 12

Max at 6:00 AM on Sep 12, 2026

Moderate

PM2.5: 15

AQI

Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.

PM₂.₅ 15 µg/m3

PM₁₀ 17 µg/m3

SO₂ 4 µg/m3

NO₂ 10 µg/m3

O₃ 55 µg/m3

CO 223 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 AM on Sep 13

Max at 10:00 AM on Sep 13, 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 2 µg/m3

NO₂ 5 µg/m3

O₃ 40 µg/m3

CO 110 µg/m3

AQI Hourly Forecast Graph

Min at 8:00 PM on Sep 14

Max at 3:00 AM on Sep 14, 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 3 µg/m3

SO₂ 4 µg/m3

NO₂ 16 µg/m3

O₃ 25 µg/m3

CO 140 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: 5

AQI

Air Quality is Good Air quality is excellent. No health concerns for any group.

PM₂.₅ 5 µg/m3

PM₁₀ 6 µg/m3

SO₂ 4 µg/m3

NO₂ 20 µg/m3

O₃ 33 µg/m3

CO 191 µg/m3

AQI Hourly Forecast Graph

Min at 6:00 PM on Sep 16

Max at 7:00 AM on Sep 16, 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 12 µg/m3

SO₂ 5 µg/m3

NO₂ 13 µg/m3

O₃ 70 µg/m3

CO 177 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Sep 17

Max at 1:00 PM on Sep 17, 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 4 µg/m3

NO₂ 11 µg/m3

O₃ 65 µg/m3

CO 151 µg/m3

AQI Hourly Forecast Graph

Min at 9:00 PM on Sep 18

Max at 3:00 AM on Sep 18, 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 4 µg/m3

NO₂ 13 µg/m3

O₃ 45 µg/m3

CO 152 µg/m3

AQI Hourly Forecast Graph

Min at 5:00 AM on Sep 19

Max at 3:00 PM on Sep 19, 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 3 µg/m3

SO₂ 2 µg/m3

NO₂ 9 µg/m3

O₃ 39 µg/m3

CO 141 µg/m3

AQI Hourly Forecast Graph

Min at 2:00 PM on Sep 20

Max at 1:00 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 3 µg/m3

SO₂ 2 µg/m3

NO₂ 8 µg/m3

O₃ 23 µg/m3

CO 131 µg/m3

AQI Hourly Forecast Graph

Min at 10:00 AM on Sep 21

Max at 2:00 AM on Sep 21, 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 9 µg/m3

NO₂ 22 µg/m3

O₃ 54 µg/m3

CO 200 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Sep 22

Max at 6:00 PM on Sep 22, 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 15 µg/m3

SO₂ 6 µg/m3

NO₂ 24 µg/m3

O₃ 40 µg/m3

CO 205 µg/m3

AQI Hourly Forecast Graph

Min at 9:00 AM on Sep 23

Max at 1:00 AM on Sep 23, 2026

109

Poor

PM2.5: 29

AQI

109

Air Quality is Poor Air may cause discomfort. Sensitive groups should reduce outdoor exposure.

PM₂.₅ 29 µg/m3

PM₁₀ 31 µg/m3

SO₂ 9 µg/m3

NO₂ 16 µg/m3

O₃ 113 µg/m3

CO 241 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Sep 24

Max at 4:00 PM on Sep 24, 2026

Moderate

PM2.5: 22

AQI

Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.

PM₂.₅ 22 µg/m3

PM₁₀ 24 µg/m3

SO₂ 7 µg/m3

NO₂ 15 µg/m3

O₃ 92 µg/m3

CO 228 µg/m3

AQI Hourly Forecast Graph

Min at 10:00 AM on Sep 25

Max at 2:00 AM on Sep 25, 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 12 µg/m3

SO₂ 4 µg/m3

NO₂ 15 µg/m3

O₃ 53 µg/m3

CO 192 µg/m3

AQI Hourly Forecast Graph

Min at 8:00 PM on Sep 26

Max at 1:00 AM on Sep 26, 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 10 µg/m3

SO₂ 5 µg/m3

NO₂ 16 µg/m3

O₃ 50 µg/m3

CO 176 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 AM on Sep 27

Max at 1:00 PM on Sep 27, 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 12 µg/m3

O₃ 19 µg/m3

CO 149 µg/m3

AQI Hourly Forecast Graph

Min at 7:00 AM on Sep 28

Max at 12:00 AM on Sep 28, 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 10 µg/m3

SO₂ 7 µg/m3

NO₂ 32 µg/m3

O₃ 31 µg/m3

CO 251 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Sep 29

Max at 6:00 PM on Sep 29, 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 13 µg/m3

SO₂ 6 µg/m3

NO₂ 25 µg/m3

O₃ 39 µg/m3

CO 215 µg/m3

AQI Hourly Forecast Graph

Min at 8:00 AM on Sep 30

Max at 3:00 PM on Sep 30, 2026

109

Poor

PM2.5: 29

AQI

109

Air Quality is Poor Air may cause discomfort. Sensitive groups should reduce outdoor exposure.

PM₂.₅ 29 µg/m3

PM₁₀ 32 µg/m3

SO₂ 7 µg/m3

NO₂ 13 µg/m3

O₃ 106 µg/m3

CO 216 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Oct 1

Max at 12:00 AM on Oct 1, 2026

Moderate

PM2.5: 19

AQI

Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.

PM₂.₅ 19 µg/m3

PM₁₀ 22 µg/m3

SO₂ 10 µg/m3

NO₂ 24 µg/m3

O₃ 53 µg/m3

CO 222 µg/m3

AQI Hourly Forecast Graph

Min at 8:00 PM on Oct 2

Max at 1:00 AM on Oct 2, 2026

Moderate

PM2.5: 12

AQI

Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.

PM₂.₅ 12 µg/m3

PM₁₀ 17 µg/m3

SO₂ 8 µg/m3

NO₂ 16 µg/m3

O₃ 59 µg/m3

CO 190 µg/m3

AQI Hourly Forecast Graph

Min at 10:00 AM on Oct 3

Max at 2:00 AM on Oct 3, 2026

Japan Prefecture Historical Weather Data

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

JapanOct 10, 2026

14 °C | °F

Sunny

Max 24 °

Min 7 °

Humidity 80 %	Wind 19 Km/h
Visibility 8 km	UV Index 3.4
Sunrise 5:46 AM	Sunset 5:14 PM
Moonrise 4:56 AM	Moonset 4:41 PM
Snow 0 mm/h	Rain Chance 0%

Historical Weather from WeatherAPI