What is the air quality in Katori-shi today?

The current Air Quality Index (AQI) in Katori-shi is 21 (Good). PM2.5 concentration is 5.1 µg/m³.

What is the temperature in Katori-shi right now?

The current temperature in Katori-shi is 16.5°C (feels like 16.5°C). Humidity is 86.7% and wind speed is 40.7 km/h.

Is it safe to go outside in Katori-shi?

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

Air Quality in Katori-shi, Japan

Drizzle

16.5°C · 86.7% humidity

16.5°

Feels 16.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

6 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 25 stn

View full history →

Katori-shi'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.

86.7%

Humidity

40.7 km/h

Wind ESE

1021.5 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.1 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Katori-shi?

Temperature & Precipitation

PM2.5 Trend

45h · 25 stations

PM2.55.1 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (6 stations within 25 km)

5.1

Median

5.58

Average

3.1

Low

10.1

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +0.9

What is the 7-day forecast for Katori-shi?

10-21

20.2° 15.0°

0.94 mm

10-22

21.8° 16.9°

0.19 mm

10-23

22.3° 12.8°

10-24

19.0° 15.6°

0.69 mm

10-25

18.9° 13.1°

3.88 mm

10-26

19.6° 14.2°

0.06 mm

10-27

17.3° 16.1°

1.88 mm

Both models agree Avg diff: 3.1°C

Where are air quality stations near Katori-shi?

Hanegawa, Katori, Chiba, Japan (香取羽根川香取市)

10.9 km PM2.5: 6.0 µg/m³

Shiroyama, Kashima, Ibaraki, Japan (鹿島宮中鹿嶋市)

13.5 km PM2.5: 5.0 µg/m³

Kamisu, Ibaraki, Japan (神栖消防神栖市)

14.9 km PM2.5: 3.1 µg/m³

Edosaki, Inashiki, Ibaraki, Japan (江戸崎公民館稲敷市)

18.0 km PM2.5: 5.0 µg/m³

Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)

20.9 km PM2.5: 3.1 µg/m³

Tsubaki, Sosa, Chiba, Japan (匝瑳椿匝瑳市)

20.9 km PM2.5: 7.2 µg/m³

Suda, Kamisu, Ibaraki, Japan (波崎太田神栖市)

22.8 km PM2.5: 10.1 µg/m³

What cities are near Katori-shi?

21 Sawara 21 Itako 21 Omigawa 18 Namegata 13 Kamisu 21 Kashima-shi 21 Inashiki 21 Edosaki 13 Narita 30 Sōsa

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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 2026-10-21T05:27 UTC.