Air Quality in Chiyoda, Japan

Windy
23.5°C · 63.0% humidity
23.5°
Feels 23.5°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
57 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
43 6am
43
43
22 9am
28
32
35 12pm
37
39
52 3pm
53
54
71 6pm
72
71
55 9pm
43
43
43 12am
43
23
23 3am
23
23
Station readings
25
11
CAMS model adj -11
54
54
54
54
54
54
54
54
54
66
66
66
83
84
83
66
54
54
54
54
34
34
34
34
AD 728×90

Air Quality Index Trend

29h · 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. Current PM2.5 concentration in Chiyoda is 1.1× the WHO annual guideline of 5 µg/m³.

63.0%
Humidity
172.2 km/h
Wind S
999.5 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
22
5.25 µg/m³
PM10▲
56
66.15 µg/m³
050100150200300500

What is the weather forecast for Chiyoda?

Temperature & Precipitation

PM2.5 Trend

29h · 1 station
PM2.55.25 µg/m³ ✓ WHO
Good
PM1066.15 µg/m³
Moderate
UV INDEX14.9
Extreme
AD 300×250
Station readings (57 stations within 25 km)
5.25
Median
5.85
Average
1.4
Low
13.1
High
PM2.5 µg/m³ · Model: 20.3 · Bias: +15.1

What is the 7-day forecast for Chiyoda?

05-29
24.8° 20.0°
05-30
24.6° 19.9°
0.94 mm
05-31
26.4° 20.6°
0.19 mm
06-01
27.3° 21.3°
06-02
26.6° 21.3°
06-03
27.7° 22.7°
0.06 mm
06-04
26.2° 19.4°
Both models agree Avg diff: 2.4°C

Where are air quality stations near Chiyoda?

10
Hibiyakoen, Chiyoda, Tokyo, Japan (日比谷交差点千代田区)
1.7 km PM2.5: 2.4 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
11
Naitomachi, Shinjuku, Tokyo, Japan (国設新宿新宿区)
3.8 km PM2.5: 2.6 µg/m³
7
Harumi, Chuo, Tokyo, Japan (中央区晴海中央区)
4.6 km PM2.5: 1.7 µg/m³
33
Takanawa, Minato-ku, Tōkyō-to, Japan (港区高輪港区)
4.9 km PM2.5: 7.9 µg/m³
5
Takanawa, Minato-ku, Tōkyō-to, Japan (港区高輪港区)
4.9 km PM2.5: 1.2 µg/m³
13
Takanawa, Minato, Tokyo, Japan (第一京浜高輪港区)
5.7 km PM2.5: 3.1 µg/m³
21
スカイツリー１５０ｍ
6.1 km 75.5% RH PM2.5: 5.0 µg/m³ PM10: 10.0 µg/m³
17
スカイツリー３２５ｍ
6.1 km 88.2% RH PM2.5: 4.0 µg/m³ PM10: 8.0 µg/m³
17
Minowa, Taito, Tokyo, Japan (明治通り大関横丁台東区)
6.2 km PM2.5: 4.1 µg/m³

What cities are near Chiyoda?

22 Akasaka 22 Akihabara 21 Chūō 23 Minato City 25 Yotsuya 22 Taito 17 Kachidoki 26 Shinjuku 15 Ōkubo 18 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 2026-05-29T00:17 UTC.