Air Quality in Saijō, Japan

Drizzle
20.5°C · 77.0% humidity
20.5°
Feels 20.5°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast
27 9am
27
34
42 12pm
45
48
30 3pm
31
32
32 6pm
53
53
53 9pm
54
54
54 12am
54
54
54 3am
54
54
54 6am
34
34
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
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
42
10.17 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Saijō?

Temperature & Precipitation

PM2.5 Trend

46h · 14 stations
PM2.510.17 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX24.9
Extreme
AD 300×250
Station readings (7 stations within 25 km)
10.17
Median
11.63
Average
10.1
Low
15.0
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -2.8

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?

46
Omachi, Saijo, Ehime, Japan (西条西条市)
0.8 km PM2.5: 11.0 µg/m³
46
Hongo, Niihama, Ehime, Japan (中村新居浜市)
9.1 km PM2.5: 11.0 µg/m³
24
Hongo, Niihama, Ehime, Japan (中村新居浜市)
9.1 km PM2.5: 5.8 µg/m³
38
Hongo, Niihama, Ehime, Japan (中村新居浜市)
9.1 km PM2.5: 9.1 µg/m³
37
Nyugawa, Saijo, Ehime, Japan (東予西条市)
9.7 km PM2.5: 8.9 µg/m³
38
Nyugawa, Saijo, Ehime, Japan (東予西条市)
9.7 km PM2.5: 9.1 µg/m³
28
Kubotacho, Niihama, Ehime, Japan (金子新居浜市)
10.0 km PM2.5: 6.7 µg/m³
53
Kubotacho, Niihama, Ehime, Japan (金子新居浜市)
10.0 km PM2.5: 13.1 µg/m³
30
Kubotacho, Niihama, Ehime, Japan (金子新居浜市)
10.0 km PM2.5: 7.2 µg/m³
7
Asahimachi, Imabari, Ehime, Japan (今治旭今治市)
23.5 km PM2.5: 1.7 µg/m³

What cities are near Saijō?

45 Niihama 42 Imabari 47 Tōon 38 Shikokuchūō 30 Shinagawa 45 Hōjō 52 Kawanoechō 42 Matsuyama 47 Haramachi 26 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 2026-05-30T03:00 UTC.