Air Quality in Saijō, Japan

Drizzle
20.5°C · 77.0% humidity
20.5°
Feels 20.5°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast
54 6am
34
27
28 9am
27
34
54 12pm
54
54
34 3pm
34
34
34 6pm
54
54
54 9pm
54
54
54 12am
54
54
54 3am
54
54
AD 728×90

Air Quality Index Trend

46h · 14 stn

Saijō'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.

77.0%
Humidity
24.5 km/h
Wind ENE
1013.5 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
28
6.8 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Saijō?

Temperature & Precipitation

PM2.5 Trend

46h · 14 stations
PM2.56.8 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (6 stations within 25 km)
6.8
Median
9.7
Average
6.7
Low
15.0
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +3.2

What is the 7-day forecast for Saijō?

05-30
23.6° 17.0°
3.31 mm
05-31
22.4° 16.6°
06-01
24.4° 17.8°
06-02
22.8° 19.2°
0.19 mm
06-03
25.2° 16.2°
2.06 mm
06-04
24.2° 15.4°
0.13 mm
06-05
26.8° 16.6°
1.63 mm
Both models agree Avg diff: 3.2°C

Where are air quality stations near Saijō?

34
Omachi, Saijo, Ehime, Japan (西条西条市)
0.8 km PM2.5: 8.2 µg/m³
33
Hongo, Niihama, Ehime, Japan (中村新居浜市)
9.1 km PM2.5: 7.9 µg/m³
23
Hongo, Niihama, Ehime, Japan (中村新居浜市)
9.1 km PM2.5: 5.5 µg/m³
25
Hongo, Niihama, Ehime, Japan (中村新居浜市)
9.1 km PM2.5: 6.0 µg/m³
21
Nyugawa, Saijo, Ehime, Japan (東予西条市)
9.7 km PM2.5: 5.0 µg/m³
38
Nyugawa, Saijo, Ehime, Japan (東予西条市)
9.7 km PM2.5: 9.1 µg/m³
25
Kubotacho, Niihama, Ehime, Japan (金子新居浜市)
10.0 km PM2.5: 6.0 µg/m³
25
Kubotacho, Niihama, Ehime, Japan (金子新居浜市)
10.0 km PM2.5: 6.0 µg/m³
30
Kubotacho, Niihama, Ehime, Japan (金子新居浜市)
10.0 km PM2.5: 7.2 µg/m³
34
Asahimachi, Imabari, Ehime, Japan (今治旭今治市)
23.5 km PM2.5: 8.2 µg/m³

What cities are near Saijō?

45 Niihama 34 Imabari 37 Tōon 50 Shikokuchūō 33 Shinagawa 35 Hōjō 44 Kawanoechō 30 Matsuyama 35 Haramachi 30 Innoshima
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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 2026-05-30T00:49 UTC.