Air Quality in Katori-shi, Japan

Windy
23.1°C · 68.6% humidity
23.1°
Feels 23.1°
50
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast
27 6am
27
27
50 9am
41
39
42 12pm
60
58
57 3pm
56
56
55 6pm
55
28
25 9pm
34
27
27 12am
34
34
54 3am
54
54
AD 728×90

Air Quality Index Trend

47h · 22 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 2.4× the WHO annual guideline of 5 µg/m³.

68.6%
Humidity
119.9 km/h
Wind SSE
1000.0 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
50
11.97 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Katori-shi?

Temperature & Precipitation

PM2.5 Trend

47h · 22 stations
PM2.511.97 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (4 stations within 25 km)
11.97
Median
11.07
Average
8.2
Low
14.0
High
PM2.5 µg/m³ · Model: 12.85 · Bias: +0.9

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: 2.7°C

Where are air quality stations near Katori-shi?

9
Hanegawa, Katori, Chiba, Japan (香取羽根川香取市)
10.9 km PM2.5: 2.2 µg/m³
14
Shiroyama, Kashima, Ibaraki, Japan (鹿島宮中鹿嶋市)
13.5 km PM2.5: 3.4 µg/m³
34
Kamisu, Ibaraki, Japan (神栖消防神栖市)
14.9 km PM2.5: 8.2 µg/m³
42
Kamisu, Ibaraki, Japan (神栖消防神栖市)
14.9 km PM2.5: 10.1 µg/m³
46
Edosaki, Inashiki, Ibaraki, Japan (江戸崎公民館稲敷市)
18.0 km PM2.5: 11.0 µg/m³
15
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 3.6 µg/m³
65
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 18.8 µg/m³
53
Hanazakicho, Narita, Chiba, Japan (成田花崎（車）成田市)
20.9 km PM2.5: 13.1 µg/m³
13
Tsubaki, Sosa, Chiba, Japan (匝瑳椿匝瑳市)
20.9 km PM2.5: 3.1 µg/m³
38
Tsubaki, Sosa, Chiba, Japan (匝瑳椿匝瑳市)
20.9 km PM2.5: 9.1 µg/m³

What cities are near Katori-shi?

49 Sawara 54 Itako 50 Omigawa 54 Namegata 53 Kamisu 55 Kashima-shi 45 Inashiki 45 Edosaki 41 Narita 51 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 2026-05-29T00:24 UTC.