Air Quality in Katori-shi, Japan

Cloudy
17.2°C · 86.9% humidity
17.2°
Feels 17.2°
59
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
3 stations

Nearby Monitoring Stations

AQI Forecast
25 9pm
34
27
59 12am
57
50
66 3am
62
60
58 6am
57
56
36 9am
35
35
35 12pm
54
54
54 3pm
54
54
54 6pm
34
54
AD 728×90

Air Quality Index Trend

47h · 1 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 3.2× the WHO annual guideline of 5 µg/m³.

86.9%
Humidity
16.0 km/h
Wind SSW
1021.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
59
16.03 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Katori-shi?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.516.03 µg/m³ ×1.1 WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (3 stations within 25 km)
16.03
Median
14.87
Average
8.6
Low
25.9
High
PM2.5 µg/m³ · Model: 12.85 · Bias: -3.2

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

05-29
23.1° 17.2°
0.06 mm
05-30
20.9° 17.1°
3.81 mm
05-31
24.7° 17.6°
0.13 mm
06-01
23.9° 19.3°
06-02
22.4° 17.3°
06-03
27.2° 21.1°
0.31 mm
06-04
24.0° 16.7°
0.06 mm
Both models agree Avg diff: 2.8°C

Where are air quality stations near Katori-shi?

21
Hanegawa, Katori, Chiba, Japan (香取羽根川香取市)
10.9 km PM2.5: 5.0 µg/m³
38
Shiroyama, Kashima, Ibaraki, Japan (鹿島宮中鹿嶋市)
13.5 km PM2.5: 9.1 µg/m³
25
Kamisu, Ibaraki, Japan (神栖消防神栖市)
14.9 km PM2.5: 6.0 µg/m³
38
Kamisu, Ibaraki, Japan (神栖消防神栖市)
14.9 km PM2.5: 9.1 µg/m³
55
Edosaki, Inashiki, Ibaraki, Japan (江戸崎公民館稲敷市)
18.0 km PM2.5: 14.0 µg/m³
50
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 12.0 µg/m³
61
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 16.9 µg/m³
50
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 12.0 µg/m³
30
Tsubaki, Sosa, Chiba, Japan (匝瑳椿匝瑳市)
20.9 km PM2.5: 7.2 µg/m³
59
Tsubaki, Sosa, Chiba, Japan (匝瑳椿匝瑳市)
20.9 km PM2.5: 15.9 µg/m³

What cities are near Katori-shi?

58 Sawara 64 Itako 36 Omigawa 62 Namegata 36 Kamisu 35 Kashima-shi 80 Inashiki 80 Edosaki 42 Narita 36 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 2026-05-29T15:09 UTC.