Air Quality in Hiroshima, Japan

Cloudy
28.4°C · 78.8% humidity
28.4°
Feels 34.5°
73
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
3 stations

Nearby Monitoring Stations

AQI Forecast
66 6am
54
34
73 9am
62
54
48 12pm
37
34
39 3pm
38
37
36 6pm
55
55
55 9pm
55
54
54 12am
54
54
54 3am
54
54
AD 728×90

Air Quality Index Trend

45h · 1 stn

Hiroshima's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions. Current PM2.5 concentration in Hiroshima is 1.5× the WHO 24-hour guideline of 15 µg/m³.

78.8%
Humidity
28.3 km/h
Wind ESE
995.1 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
73
22.52 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Hiroshima?

Temperature & Precipitation

PM2.5 Trend

45h · 1 station
PM2.522.52 µg/m³ ×1.5 WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX10.9
Extreme
AD 300×250
Station readings (3 stations within 25 km)
22.52
Median
22.37
Average
12.0
Low
28.3
High
PM2.5 µg/m³ · Model: 13.7 · Bias: -8.8

What is the 7-day forecast for Hiroshima?

07-22
30.9° 22.0°
5.0 mm
07-23
27.3° 16.5°
16.06 mm
07-24
27.1° 23.7°
6.37 mm
07-25
30.1° 20.6°
0.62 mm
07-26
32.5° 22.9°
2.5 mm
07-27
30.3° 22.0°
0.06 mm
07-28
29.6° 24.0°
1.63 mm
Both models agree Avg diff: 3.8°C

Where are air quality stations near Hiroshima?

20
Misasamachi, Hiroshima-ken, Japan (三篠小学校広島市西区)
1.1 km PM2.5: 4.8 µg/m³
68
Hiroshima (広島)
1.7 km PM2.5: 20.2 µg/m³
61
Hiroshima (広島)
1.7 km PM2.5: 16.9 µg/m³
65
Koihonmachi, Hiroshima Prefecture, Japan (庚午広島市西区)
2.5 km PM2.5: 18.8 µg/m³
57
Inokuchi, Hiroshima, Japan (井口小学校広島市西区)
6.8 km PM2.5: 15.0 µg/m³
63
Inokuchi, Hiroshima, Japan (井口小学校広島市西区)
6.8 km PM2.5: 17.8 µg/m³
36
Inokuchi, Hiroshima, Japan (井口小学校広島市西区)
6.8 km PM2.5: 8.6 µg/m³
15
Numatacho Oaza Tomo, Hiroshima Prefecture, Japan (伴小学校広島市安佐南区)
7.5 km PM2.5: 3.6 µg/m³
22
Umaki, Hiroshima-ken, Japan (福木小学校広島市東区)
9.3 km PM2.5: 5.3 µg/m³
28
Umaki, Hiroshima-ken, Japan (福木小学校広島市東区)
9.3 km PM2.5: 6.7 µg/m³

What cities are near Hiroshima?

66 Gion 62 Fuchū 64 Kaitaichi 81 Hatsukaichi 66 Kumano 77 Etajima 90 Ōno-hara 67 Kure 68 Higashihiroshima 95 Ōtake
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-22T00:21 UTC.