Air Quality in Onomichi, Japan

Cloudy
23.1°C · 85.9% humidity
23.1°
Feels 23.1°
16
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
16 7am
16
16
16 10am
18
25
25 1pm
45
45
45 4pm
45
45
45 7pm
45
45
25 10pm
25
25
25 1am
25
25
25 4am
25
25
Station readings 47h ago
AQI 16
PM2.5 3.8 µg/m³ · 47h ago
AD 728×90

Air Quality Index Trend

43h · 14 stn

Onomichi'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.

85.9%
Humidity
26.1 km/h
Wind NE
1006.3 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
16
3.94 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Onomichi?

Temperature & Precipitation

PM2.5 Trend

43h · 14 stations
PM2.53.94 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (8 stations within 25 km)
3.94
Median
4.72
Average
2.4
Low
11.0
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +2.1

What is the 7-day forecast for Onomichi?

08-03
33.7° 23.1°
08-04
33.3° 24.2°
2.5 mm
08-05
28.8° 24.0°
6.88 mm
08-06
26.1° 23.8°
0.13 mm
08-07
31.3° 22.6°
2.31 mm
08-08
33.9° 22.5°
0.88 mm
08-09
32.0° 22.4°
0.19 mm
Both models agree Avg diff: 4.0°C

Where are air quality stations near Onomichi?

18
Fukuyama, Hiroshima Prefecture, Japan (松永小学校福山市)
6.0 km PM2.5: 4.3 µg/m³
11
Miyaoki, Mihara, Hiroshima, Japan (三原宮沖町三原市)
11.7 km PM2.5: 2.6 µg/m³
14
Fukuyama (福山)
16.8 km PM2.5: 3.4 µg/m³
13
Fukuyama (福山)
16.8 km PM2.5: 3.1 µg/m³
14
Fukuyama (福山)
16.8 km PM2.5: 3.4 µg/m³
14
Higashisakuramachi, Fukuyama, Hiroshima, Japan (福山市役所福山市)
16.8 km PM2.5: 3.4 µg/m³
13
Higashisakuramachi, Fukuyama, Hiroshima, Japan (福山市役所福山市)
16.8 km PM2.5: 3.1 µg/m³
46
向丘中学校
16.8 km PM2.5: 11.0 µg/m³ PM10: 21.0 µg/m³
16
Akebonocho, Fukuyama, Hiroshima Prefecture, Japan (曙小学校福山市)
18.8 km PM2.5: 3.8 µg/m³
16
Akebonocho, Fukuyama, Hiroshima Prefecture, Japan (曙小学校福山市)
18.8 km PM2.5: 3.8 µg/m³

What cities are near Onomichi?

10 Mihara 12 Innoshima 23 Shin’ichi 12 Fukuyama 22 Fuchūchō 12 Kōzan 20 Kannabechō-yahiro 11 Takehara 20 Kasaoka 21 Ibara
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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 2026-08-08T01:55 UTC.