Air Quality in Katori-shi, Japan

Overcast
22.6°C · 91.8% humidity
22.6°
Feels 22.6°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
44 6am
46
46
20 9am
34
40
36 12pm
39
41
42 3pm
43
44
43 6pm
43
43
44 9pm
46
46
46 12am
46
46
46 3am
46
46
Station readings 46h ago
AQI 46
PM2.5 11.0 µg/m³ · 46h ago
AD 728×90

Air Quality Index Trend

46h · 27 stn

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.

91.8%
Humidity
21.4 km/h
Wind ENE
1009.7 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
20
4.94 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Katori-shi?

Temperature & Precipitation

PM2.5 Trend

46h · 27 stations
PM2.54.94 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (7 stations within 25 km)
4.94
Median
4.97
Average
2.2
Low
9.1
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.3

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

08-03
27.2° 21.1°
6.75 mm
08-04
32.4° 22.5°
0.13 mm
08-05
28.4° 25.3°
0.69 mm
08-06
30.4° 23.6°
21.69 mm
08-07
33.5° 24.8°
6.62 mm
08-08
30.8° 26.0°
44.69 mm
08-09
30.8° 23.5°
0.63 mm
Both models agree Avg diff: 2.8°C

Where are air quality stations near Katori-shi?

17
Hanegawa, Katori, Chiba, Japan (香取羽根川香取市)
10.9 km PM2.5: 4.1 µg/m³
10
Hanegawa, Katori, Chiba, Japan (香取羽根川香取市)
10.9 km PM2.5: 2.4 µg/m³
46
Shiroyama, Kashima, Ibaraki, Japan (鹿島宮中鹿嶋市)
13.5 km PM2.5: 11.0 µg/m³
13
Shiroyama, Kashima, Ibaraki, Japan (鹿島宮中鹿嶋市)
13.5 km PM2.5: 3.1 µg/m³
14
Edosaki, Inashiki, Ibaraki, Japan (江戸崎公民館稲敷市)
18.0 km PM2.5: 3.4 µg/m³
34
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 8.2 µg/m³
30
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 7.2 µg/m³
17
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 4.1 µg/m³
13
Tsubaki, Sosa, Chiba, Japan (匝瑳椿匝瑳市)
20.9 km PM2.5: 3.1 µg/m³
21
Tsubaki, Sosa, Chiba, Japan (匝瑳椿匝瑳市)
20.9 km PM2.5: 5.0 µg/m³

What cities are near Katori-shi?

20 Sawara 27 Itako 11 Omigawa 29 Namegata 25 Kamisu 37 Kashima-shi 24 Inashiki 23 Edosaki 18 Narita 10 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 2026-08-08T00:57 UTC.