What is the air quality in Muroran today?

The current Air Quality Index (AQI) in Muroran is 9 (Good). PM2.5 concentration is 2.2 µg/m³.

What is the temperature in Muroran right now?

The current temperature in Muroran is 12.8°C (feels like 12.8°C). Humidity is 67.6% and wind speed is 49.0 km/h.

Is it safe to go outside in Muroran?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Muroran, Japan

Windy

12.8°C · 67.6% humidity

12.8°

Feels 12.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

36h · 2 stn

View full history →

Muroran'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.

67.6%

Humidity

49.0 km/h

Wind SE

1018.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

2.2 µg/m³

PM10▲

13.7 µg/m³

050100150200300500

What is the weather forecast for Muroran?

Temperature & Precipitation

PM2.5 Trend

36h · 2 stations

PM2.52.2 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (1 station within 25 km)

2.2

Median

2.2

Average

2.2

Low

2.2

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +3.8

What is the 7-day forecast for Muroran?

10-21

12.8° 10.2°

0.75 mm

10-22

15.6° 6.6°

10.0 mm

10-23

10.8° 3.4°

3.75 mm

10-24

8.3° 4.9°

0.5 mm

10-25

8.2° 7.2°

4.06 mm

10-26

12.0° 2.6°

10-27

9.9° 4.3°

0.06 mm

Both models agree Avg diff: 4.6°C

Where are air quality stations near Muroran?

Gozensuichō, Muroran-shi, Hokkaidō, Japan (御前水室蘭市)

1.0 km PM2.5: 8.2 µg/m³

Muroran, Hokkaido Prefecture, Japan (御前水地区測定局室蘭市)

1.2 km PM2.5: 2.2 µg/m³

Muroran, Hokkaido Prefecture, Japan (御前水地区測定局室蘭市)

1.2 km PM2.5: 6.0 µg/m³

What cities are near Muroran?

9 Date 9 Noboribetsu 24 Shiraoi 34 Honchō 35 Yakumo 24 Tomakomai 34 Kamiiso 37 Hokuto 34 Hakodate 35 Kutchan

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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 2026-10-21T05:26 UTC.