Air Quality in Chiyoda, Japan

Rain
23.6°C · 87.1% humidity
23.6°
Feels 23.6°
62
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
47 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
132 6am
70
69
62 9am
64
66
67 12pm
68
69
69 3pm
69
69
69 6pm
69
69
69 9pm
69
70
70 12am
132
132
132 3am
70
70
Station readings
10
CAMS model adj -14
146
84
83
83
83
84
84
84
84
84
84
83
83
83
83
83
83
84
84
146
146
146
84
84
AD 728×90

Air Quality Index Trend

6h · 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 1.2× the WHO 24-hour guideline of 15 µg/m³.

87.1%
Humidity
63.6 km/h
Wind NNW
1002.4 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
62
17.41 µg/m³
PM10▲
63
79.9 µg/m³
050100150200300500

What is the weather forecast for Chiyoda?

Temperature & Precipitation

PM2.5 Trend

6h · 1 station
PM2.517.41 µg/m³ ×1.2 WHO
Moderate
PM1079.9 µg/m³
Moderate
UV INDEX14.9
Extreme
AD 300×250
Station readings (47 stations within 25 km)
17.41
Median
16.91
Average
3.8
Low
26.0
High
PM2.5 µg/m³ · Model: 27.55 · Bias: +10.1

What is the 7-day forecast for Chiyoda?

07-22
29.8° 23.6°
5.38 mm
07-23
28.0° 22.2°
0.75 mm
07-24
28.9° 24.4°
1.06 mm
07-25
31.9° 23.3°
0.06 mm
07-26
30.0° 24.7°
0.19 mm
07-27
32.5° 24.9°
6.06 mm
07-28
29.4° 26.0°
13.88 mm
Both models agree Avg diff: 2.5°C

Where are air quality stations near Chiyoda?

34
Hibiyakoen, Chiyoda, Tokyo, Japan (日比谷交差点千代田区)
1.7 km PM2.5: 8.2 µg/m³
63
Shinkawa, Chuo, Tokyo, Japan (永代通り新川中央区)
3.4 km PM2.5: 17.8 µg/m³
74
Naitomachi, Shinjuku, Tokyo, Japan (国設新宿新宿区)
3.8 km PM2.5: 23.0 µg/m³
65
Harumi, Chuo, Tokyo, Japan (中央区晴海中央区)
4.6 km PM2.5: 18.8 µg/m³
–
Takanawa, Minato-ku, Tōkyō-to, Japan (港区高輪港区)
4.9 km
27
Takanawa, Minato-ku, Tōkyō-to, Japan (港区高輪港区)
4.9 km PM2.5: 6.5 µg/m³
27
Takanawa, Minato, Tokyo, Japan (第一京浜高輪港区)
5.7 km PM2.5: 6.5 µg/m³
70
スカイツリー３２５ｍ
6.1 km 78.8% RH PM2.5: 21.0 µg/m³ PM10: 36.0 µg/m³
80
スカイツリー１５０ｍ
6.1 km 82.3% RH PM2.5: 26.0 µg/m³ PM10: 44.0 µg/m³
61
Minowa, Taito, Tokyo, Japan (明治通り大関横丁台東区)
6.2 km PM2.5: 16.9 µg/m³

What cities are near Chiyoda?

61 Akasaka 64 Akihabara 69 Chūō 62 Minato City 59 Yotsuya 64 Taito 66 Kachidoki 59 Shinjuku 59 Ōkubo 55 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 2026-07-22T00:22 UTC.