What is the air quality in Saijō today?

The current Air Quality Index (AQI) in Saijō is 34 (Good). PM2.5 concentration is 8.2 µg/m³.

What is the temperature in Saijō right now?

The current temperature in Saijō is 24.4°C (feels like 24.4°C). Humidity is 84.9% and wind speed is 73.4 km/h.

Is it safe to go outside in Saijō?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Saijō, Japan

Drizzle

24.4°C · 84.9% humidity

24.4°

Feels 24.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

27 6pm

34 9pm

27 12am

25 3am

24 6am

24 9am

24 12pm

24 3pm

Air Quality Index Trend

45h · 10 stn

View full history →

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.

84.9%

Humidity

73.4 km/h

Wind ENE

1003.2 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.2 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Saijō?

Temperature & Precipitation

PM2.5 Trend

45h · 10 stations

PM2.58.2 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (2 stations within 25 km)

8.2

Median

8.2

Average

8.2

Low

8.2

High

PM2.5 µg/m³ · Model: 6.25 · Bias: -2.0

What is the 7-day forecast for Saijō?

09-05

26.5° 23.4°

1.75 mm

09-06

28.8° 22.3°

1.0 mm

09-07

29.3° 22.9°

0.56 mm

09-08

25.0° 21.7°

7.56 mm

09-09

26.2° 21.9°

3.25 mm

09-10

27.2° 21.3°

0.31 mm

09-11

26.1° 21.2°

5.75 mm

Both models agree Avg diff: 3.3°C

Where are air quality stations near Saijō?

Omachi, Saijo, Ehime, Japan (西条西条市)

0.8 km PM2.5: 8.2 µg/m³

Hongo, Niihama, Ehime, Japan (中村新居浜市)

9.1 km PM2.5: 7.2 µg/m³

Asahimachi, Imabari, Ehime, Japan (今治旭今治市)

23.5 km PM2.5: 8.2 µg/m³

Asahimachi, Imabari, Ehime, Japan (今治旭今治市)

23.5 km PM2.5: 2.2 µg/m³

What cities are near Saijō?

30 Niihama 34 Imabari 30 Tōon 15 Shikokuchūō 23 Shinagawa 31 Hōjō 18 Kawanoechō 32 Matsuyama 30 Haramachi 13 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 2026-09-05T12:11 UTC.