Air Quality in Chiyoda, Japan

Drizzle
25.1°C · 74.6% humidity
25.1°
Feels 25.1°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
72 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
29 4pm
9
29
28 7pm
29
9
29 10pm
29
9
9 1am
2
2
0 4am
0
2
9 7am
9
29
29 10am
29
29
29 1pm
41
29
Station readings
13
11
35
CAMS model adj -25
54
34
54
54
54
34
54
54
34
34
27
27
25
25
27
34
34
54
54
54
54
54
66
54
AD 728×90

Air Quality Index Trend

40h · 1 stn

Chiyoda'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.

74.6%
Humidity
54.9 km/h
Wind ENE
1009.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
28
6.77 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Chiyoda?

Temperature & Precipitation

PM2.5 Trend

40h · 1 station
PM2.56.77 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (72 stations within 25 km)
6.77
Median
5.85
Average
1.2
Low
12.0
High
PM2.5 µg/m³ · Model: 9.65 · Bias: +2.9

What is the 7-day forecast for Chiyoda?

09-05
27.8° 21.4°
10.25 mm
09-06
31.7° 23.5°
1.37 mm
09-07
31.9° 23.8°
1.06 mm
09-08
30.5° 23.2°
1.06 mm
09-09
27.7° 22.4°
14.12 mm
09-10
29.7° 24.5°
4.31 mm
09-11
31.4° 24.2°
0.19 mm
Both models agree Avg diff: 3.6°C

Where are air quality stations near Chiyoda?

17
Hibiyakoen, Chiyoda, Tokyo, Japan (日比谷交差点千代田区)
1.7 km PM2.5: 4.1 µg/m³
34
Hibiyakoen, Chiyoda, Tokyo, Japan (日比谷交差点千代田区)
1.7 km PM2.5: 8.2 µg/m³
25
Kanda Tsukasamachi, Chiyoda, Tokyo, Japan (千代田区神田司町千代田区)
2.0 km PM2.5: 6.0 µg/m³
25
Shinkawa, Chuo, Tokyo, Japan (永代通り新川中央区)
3.4 km PM2.5: 6.0 µg/m³
21
Shinkawa, Chuo, Tokyo, Japan (永代通り新川中央区)
3.4 km PM2.5: 5.0 µg/m³
22
Naitōmachi, Shinjuku-ku, Tōkyō-to, Japan (国設東京（新宿）新宿区)
3.8 km PM2.5: 5.3 µg/m³
21
Harumi, Chuo, Tokyo, Japan (中央区晴海中央区)
4.6 km PM2.5: 5.0 µg/m³
21
Harumi, Chuo, Tokyo, Japan (中央区晴海中央区)
4.6 km PM2.5: 5.0 µg/m³
16
Takanawa, Minato-ku, Tōkyō-to, Japan (港区高輪港区)
4.9 km PM2.5: 3.8 µg/m³
17
Honkomagome, Bunkyo, Tokyo, Japan (文京区本駒込文京区)
5.2 km PM2.5: 4.1 µg/m³

What cities are near Chiyoda?

28 Akasaka 26 Akihabara 25 Chūō 26 Minato City 33 Yotsuya 25 Taito 23 Kachidoki 35 Shinjuku 33 Ōkubo 28 Ōtsuka
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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 2026-09-05T10:27 UTC.