Air Quality in Katori-shi, Japan

Rain
24.8°C · 98.9% humidity
24.8°
Feels 24.8°
69
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
9 stations

Nearby Monitoring Stations

AQI Forecast
54 5am
54
54
69 8am
65
62
60 11am
58
57
56 2pm
67
67
67 5pm
84
66
54 8pm
54
83
83 11pm
83
83
83 2am
83
83
AD 728×90

Air Quality Index Trend

47h · 36 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. Current PM2.5 concentration in Katori-shi is 1.4× the WHO 24-hour guideline of 15 µg/m³.

98.9%
Humidity
18.3 km/h
Wind SSW
1001.8 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
69
20.8 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Katori-shi?

Temperature & Precipitation

PM2.5 Trend

47h · 36 stations
PM2.520.8 µg/m³ ×1.4 WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX9.4
Very High
AD 300×250
Station readings (9 stations within 25 km)
20.8
Median
23.11
Average
9.1
Low
50.9
High
PM2.5 µg/m³ · Model: 16.35 · Bias: -4.4

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

07-21
30.9° 23.4°
4.06 mm
07-22
26.9° 22.9°
9.88 mm
07-23
26.8° 20.6°
0.56 mm
07-24
26.2° 23.7°
0.63 mm
07-25
32.9° 21.1°
0.38 mm
07-26
29.6° 19.1°
0.31 mm
07-27
25.4° 22.9°
0.75 mm
Both models agree Avg diff: 2.8°C

Where are air quality stations near Katori-shi?

25
Hanegawa, Katori, Chiba, Japan (香取羽根川香取市)
10.9 km PM2.5: 6.0 µg/m³
38
Shiroyama, Kashima, Ibaraki, Japan (鹿島宮中鹿嶋市)
13.5 km PM2.5: 9.1 µg/m³
63
Kamisu, Ibaraki, Japan (神栖消防神栖市)
14.9 km PM2.5: 17.8 µg/m³
55
Kamisu, Ibaraki, Japan (神栖消防神栖市)
14.9 km PM2.5: 14.0 µg/m³
34
Edosaki, Inashiki, Ibaraki, Japan (江戸崎公民館稲敷市)
18.0 km PM2.5: 8.2 µg/m³
46
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 11.0 µg/m³
82
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 26.8 µg/m³
70
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 21.1 µg/m³
61
Tsubaki, Sosa, Chiba, Japan (匝瑳椿匝瑳市)
20.9 km PM2.5: 16.9 µg/m³
85
Tsubaki, Sosa, Chiba, Japan (匝瑳椿匝瑳市)
20.9 km PM2.5: 28.3 µg/m³

What cities are near Katori-shi?

68 Sawara 76 Itako 60 Omigawa 71 Namegata 62 Kamisu 95 Kashima-shi 38 Inashiki 39 Edosaki 77 Narita 63 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 2026-07-21T23:17 UTC.