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Hiroshima Prefecture Air Quality

ByPaul (Poison Fish) Manjyu Woodman

Aug 30, 2026 #Air, #Air Quality, #Hiroshima, #Hiroshima Prefecture, #Hiroshima Prefecture Air Quality, #Japan, #Japanese, #Prefecture, #Quality, #Weather

Hiroshima Prefecture Air Quality

Hiroshima Prefecture AQI – Detailed Air Quality

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

Today’s Air Quality Index (AQI)

Real-time PM2.5, PM10 air pollution level in Hiroshima, Hiroshima Capital

1:53 AM, September 12, 2026

Last updated on: 1:49 AM

Live AQI 73

Air Quality is Moderate

PM₂.₅: 16.82µg/m³ PM₁₀: 20.19µg/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 12:00 AM on Sep 12

Max at 9:00 AM on Sep 12, 2026

Hiroshima Prefecture Historical Air Quality Data

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

July

September

Hiroshima, Hiroshima Capital Historical Air Quality Data

Explore historical AQI data and pollutant changes over time.

Sep 12, 2026 1:53 AM

SUNMONTUEWEDTHUFRISAT

171

Unhealthy

PM2.5: 60

AQI

171

Air Quality is Unhealthy Health risks increase. Everyone should limit the time spent outdoors.

PM₂.₅ 60 µg/m3

PM₁₀ 66 µg/m3

SO₂ 5 µg/m3

NO₂ 5 µg/m3

O₃ 96 µg/m3

CO 209 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 AM on Aug 2

Max at 1:00 AM on Aug 2, 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 23 µg/m3

SO₂ 3 µg/m3

NO₂ 3 µg/m3

O₃ 96 µg/m3

CO 165 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 AM on Aug 3

Max at 1:00 AM on Aug 3, 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 15 µg/m3

SO₂ 3 µg/m3

NO₂ 3 µg/m3

O₃ 85 µg/m3

CO 120 µg/m3

AQI Hourly Forecast Graph

Min at 8:00 PM on Aug 4

Max at 1:00 AM on Aug 4, 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 3 µg/m3

O₃ 80 µg/m3

CO 117 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Aug 5

Max at 6:00 AM on Aug 5, 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 2 µg/m3

O₃ 37 µg/m3

CO 86 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 PM on Aug 6

Max at 1:00 AM on Aug 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 2 µg/m3

O₃ 28 µg/m3

CO 79 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 PM on Aug 7

Max at 6:00 PM on Aug 7, 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 8 µg/m3

SO₂ 1 µg/m3

NO₂ 2 µg/m3

O₃ 33 µg/m3

CO 72 µg/m3

AQI Hourly Forecast Graph

Min at 7:00 PM on Aug 8

Max at 1:00 AM on Aug 8, 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 2 µg/m3

NO₂ 3 µg/m3

O₃ 38 µg/m3

CO 78 µg/m3

AQI Hourly Forecast Graph

Min at 10:00 AM on Aug 9

Max at 12:00 AM on Aug 9, 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 15 µg/m3

SO₂ 6 µg/m3

NO₂ 8 µg/m3

O₃ 59 µg/m3

CO 129 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Aug 10

Max at 8:00 PM on Aug 10, 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 15 µg/m3

SO₂ 4 µg/m3

NO₂ 3 µg/m3

O₃ 90 µg/m3

CO 115 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 AM on Aug 11

Max at 1:00 AM on Aug 11, 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 9 µg/m3

SO₂ 4 µg/m3

NO₂ 3 µg/m3

O₃ 77 µg/m3

CO 104 µg/m3

AQI Hourly Forecast Graph

Min at 2:00 AM on Aug 12

Max at 12:00 AM on Aug 12, 2026

103

Poor

PM2.5: 26

AQI

103

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

PM₂.₅ 26 µg/m3

PM₁₀ 29 µg/m3

SO₂ 6 µg/m3

NO₂ 3 µg/m3

O₃ 66 µg/m3

CO 98 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Aug 13

Max at 10:00 AM on Aug 13, 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 3 µg/m3

NO₂ 2 µg/m3

O₃ 55 µg/m3

CO 83 µg/m3

AQI Hourly Forecast Graph

Min at 9:00 AM on Aug 14

Max at 1:00 AM on Aug 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 4 µg/m3

SO₂ 2 µg/m3

NO₂ 2 µg/m3

O₃ 54 µg/m3

CO 83 µg/m3

AQI Hourly Forecast Graph

Min at 8:00 AM on Aug 15

Max at 1:00 AM on Aug 15, 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 2 µg/m3

NO₂ 2 µg/m3

O₃ 51 µg/m3

CO 79 µg/m3

AQI Hourly Forecast Graph

Min at 7:00 AM on Aug 16

Max at 1:00 AM on Aug 16, 2026

Good

PM2.5: 1

AQI

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

PM₂.₅ 1 µg/m3

PM₁₀ 2 µg/m3

SO₂ 2 µg/m3

NO₂ 2 µg/m3

O₃ 44 µg/m3

CO 79 µg/m3

AQI Hourly Forecast Graph

Min at 8:00 AM on Aug 17

Max at 1:00 AM on Aug 17, 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 2 µg/m3

O₃ 51 µg/m3

CO 85 µg/m3

AQI Hourly Forecast Graph

Min at 6:00 AM on Aug 18

Max at 12:00 AM on Aug 18, 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 5 µg/m3

SO₂ 2 µg/m3

NO₂ 2 µg/m3

O₃ 53 µg/m3

CO 87 µg/m3

AQI Hourly Forecast Graph

Min at 10:00 AM on Aug 19

Max at 12:00 AM on Aug 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 5 µg/m3

SO₂ 2 µg/m3

NO₂ 3 µg/m3

O₃ 49 µg/m3

CO 93 µg/m3

AQI Hourly Forecast Graph

Min at 8:00 AM on Aug 20

Max at 11:00 PM on Aug 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 6 µg/m3

SO₂ 2 µg/m3

NO₂ 3 µg/m3

O₃ 48 µg/m3

CO 98 µg/m3

AQI Hourly Forecast Graph

Min at 7:00 AM on Aug 21

Max at 1:00 AM on Aug 21, 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 7 µg/m3

SO₂ 2 µg/m3

NO₂ 2 µg/m3

O₃ 57 µg/m3

CO 89 µg/m3

AQI Hourly Forecast Graph

Min at 10:00 AM on Aug 22

Max at 12:00 AM on Aug 22, 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 7 µg/m3

SO₂ 2 µg/m3

NO₂ 3 µg/m3

O₃ 50 µg/m3

CO 87 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 PM on Aug 23

Max at 12:00 AM on Aug 23, 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 5 µg/m3

SO₂ 2 µg/m3

NO₂ 2 µg/m3

O₃ 56 µg/m3

CO 89 µg/m3

AQI Hourly Forecast Graph

Min at 9:00 AM on Aug 24

Max at 1:00 AM on Aug 24, 2026

Good

PM2.5: 0

AQI

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

PM₂.₅ 0 µg/m3

PM₁₀ 0 µg/m3

SO₂ 0 µg/m3

NO₂ 0 µg/m3

O₃ 2 µg/m3

CO 4 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Aug 25

Max at 1:00 AM on Aug 25, 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 10 µg/m3

SO₂ 2 µg/m3

NO₂ 2 µg/m3

O₃ 38 µg/m3

CO 102 µg/m3

AQI Hourly Forecast Graph

Min at 2:00 AM on Aug 26

Max at 3:00 PM on Aug 26, 2026

Good

PM2.5: 0

AQI

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

PM₂.₅ 0 µg/m3

PM₁₀ 0 µg/m3

SO₂ 0 µg/m3

NO₂ 0 µg/m3

O₃ 1 µg/m3

CO 4 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Aug 27

Max at 1:00 AM on Aug 27, 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 4 µg/m3

O₃ 25 µg/m3

CO 85 µg/m3

AQI Hourly Forecast Graph

Min at 7:00 AM on Aug 29

Max at 12:00 AM on Aug 29, 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 25 µg/m3

SO₂ 6 µg/m3

NO₂ 6 µg/m3

O₃ 39 µg/m3

CO 103 µg/m3

AQI Hourly Forecast Graph

Min at 4:00 PM on Aug 30

Max at 7:00 AM on Aug 30, 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 11 µg/m3

SO₂ 3 µg/m3

NO₂ 3 µg/m3

O₃ 44 µg/m3

CO 86 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 AM on Aug 31

Max at 1:00 AM on Aug 31, 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 2 µg/m3

NO₂ 2 µg/m3

O₃ 41 µg/m3

CO 84 µg/m3

AQI Hourly Forecast Graph

Min at 5:00 AM on Sep 1

Max at 1:00 AM on Sep 1, 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 4 µg/m3

O₃ 39 µg/m3

CO 90 µg/m3

AQI Hourly Forecast Graph

Min at 2:00 AM on Sep 2

Max at 12:00 AM on Sep 2, 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 2 µg/m3

NO₂ 7 µg/m3

O₃ 30 µg/m3

CO 100 µg/m3

AQI Hourly Forecast Graph

Min at 11:00 PM on Sep 3

Max at 1:00 AM on Sep 3, 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 9 µg/m3

O₃ 29 µg/m3

CO 117 µg/m3

AQI Hourly Forecast Graph

Min at 1:00 AM on Sep 4

Max at 12:00 AM on Sep 4, 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 5 µg/m3

O₃ 64 µg/m3

CO 130 µg/m3

AQI Hourly Forecast Graph

Min at 12:00 AM on Sep 5

Max at 1:00 AM on Sep 5, 2026

Hiroshima Prefecture Historical Weather Data

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

Hiroshima, Hiroshima CapitalSep 11, 2026

22 °C | °F

Patchy rain possible

Max 27 °

Min 20 °

Humidity 85 %	Wind 23 Km/h
Visibility 9 km	UV Index 1.7
Sunrise 5:50 AM	Sunset 6:23 PM
Moonrise 5:25 AM	Moonset 6:13 PM
Precipitation 2.01 mm	Snow 0 mm/h
Rain Chance 100%

Historical Weather from WeatherAPI

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Author

Paul (Poison Fish) Manjyu Woodman

Weather Radar

Weather Forecast

London, GB

5:53 PM Sep 11, 2026

°C | °F

L: 20 ° H: 22 °

Feels like 21 °

broken clouds

Humidity 58 %

Pressure 1021 hPa

Wind 3 mph NW

Wind Gust 0 mph

UV Index 0

Precipitation 0 mm

Clouds 60%

Rain Chance 0%

Snow 0 mm/h

Visibility 6 mi

Sunrise 6:28 AM

Sunset 7:25 PM

Sunrise 6:28 AM

Sunset 7:25 PM

Daily
Hourly

Daily Forecast Hourly Forecast

Temperature

Temperature
Precipitation
Rain Chance
Wind
Humidity
Pressure

Today broken clouds

20 ° / 22 ° 0 mm 0% 6 mph 58 % 1022 hPa 0 mm/h

Tomorrow light rain

14 ° / 24 ° 0.2 mm 20% 12 mph 79 % 1023 hPa 0 mm/h

Sunday light rain

18 ° / 23 ° 0.65 mm 65% 10 mph 91 % 1023 hPa 0 mm/h

Monday light rain

16 ° / 26 ° 0.2 mm 20% 9 mph 80 % 1024 hPa 0 mm/h

Tuesday light rain

15 ° / 20 ° 1 mm 100% 10 mph 92 % 1020 hPa 0 mm/h

Weather AI Assistant

Ask me anything about the weather!

Weather Air Quality

Today’s Air Quality

London, GB

5:53 PM , Sep 11, 2026

AQI

Air Quality Good

Air is clean and safe. No health risks expected. Everyone can enjoy outdoor activities without concern.

PM2.5

3.64 µg/m³

PM10

7.75 µg/m³

SO2

6.36 µg/m³

NO2

9.1 µg/m³

71.59 µg/m³

114.14 µg/m³

AQI Forecast

Today Sep 11

Tomorrow Sep 12

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Latest Post

Hiroshima Prefecture Air Quality

ByPaul (Poison Fish) Manjyu Woodman