What is the air quality in Yamaguchi today?

The current Air Quality Index (AQI) in Yamaguchi is 54 (Moderate). PM2.5 concentration is 13.5 µg/m³.

What is the temperature in Yamaguchi right now?

The current temperature in Yamaguchi is 18.0°C (feels like 18.0°C). Humidity is 95.9% and wind speed is 41.5 km/h.

Air Quality in Yamaguchi, Japan

Rain

18.0°C · 95.9% humidity

18.0°

Feels 18.0°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

Model forecast

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 16 stn

View full history →

Yamaguchi'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.

95.9%

Humidity

41.5 km/h

Wind SE

1016.3 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

13.5 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Yamaguchi?

Temperature & Precipitation

PM2.5 Trend

45h · 16 stations

PM2.513.5 µg/m³ ✓ WHO

Moderate

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Yamaguchi?

10-21

19.0° 14.8°

15.06 mm

10-22

21.3° 14.6°

10-23

22.1° 11.9°

0.56 mm

10-24

17.9° 16.7°

1.56 mm

10-25

19.1° 8.2°

0.56 mm

10-26

18.1° 9.0°

0.06 mm

10-27

17.6° 10.9°

0.5 mm

Both models agree Avg diff: 4.4°C

Where are air quality stations near Yamaguchi?

Kotobukicho, Hofu, Yamaguchi, Japan (防府市役所防府市)

17.2 km PM2.5: 17.8 µg/m³

Kotobukicho, Hofu, Yamaguchi, Japan (防府市役所防府市)

17.2 km PM2.5: 6.0 µg/m³

Emukai, Hagi, Yamaguchi, Japan (萩健康福祉センター萩市)

25.4 km PM2.5: 2.4 µg/m³

Higashisue, Ube, Yamaguchi, Japan (厚南市民センター宇部市)

31.1 km PM2.5: 3.8 µg/m³

Higashisue, Ube, Yamaguchi, Japan (厚南市民センター宇部市)

31.1 km PM2.5: 2.2 µg/m³

Higashisue, Ube, Yamaguchi, Japan (厚南市民センター宇部市)

31.1 km PM2.5: 10.1 µg/m³

What cities are near Yamaguchi?

20 Ogōri-shimogō 9 Hōfu 20 Mine 9 Hagi 29 Sanyōonoda 31 Onoda 9 Nagato 10 Ube 9 Shūnan 9 Tokuyama

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T08:29 UTC.