Air Quality in Tachikawa, Japan

Drizzle
23.7°C · 83.6% humidity
23.7°
Feels 23.7°
59
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
35 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
99 5am
161
99
59 8am
70
78
85 11am
89
92
94 2pm
95
96
96 5pm
97
97
97 8pm
97
98
99 11pm
99
161
161 2am
161
99
Station readings 20h ago
AQI 84
PM2.5 27.6 µg/m³ · 20h ago
CAMS model adj +15
84
146
84
83
83
83
84
84
84
84
84
84
83
83
83
83
83
83
84
84
146
146
146
84
AD 728×90

Air Quality Index Trend

5h · 1 stn

Tachikawa'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 Tachikawa is 1.1× the WHO 24-hour guideline of 15 µg/m³.

83.6%
Humidity
54.5 km/h
Wind NNW
1002.6 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
59
16.14 µg/m³
PM10
56
66.15 µg/m³
050100150200300500

What is the weather forecast for Tachikawa?

Temperature & Precipitation

PM2.5 Trend

5h · 1 station
PM2.516.14 µg/m³ ×1.1 WHO
Moderate
PM1066.15 µg/m³
Moderate
UV INDEX4.4
Moderate
AD 300×250
Station readings (35 stations within 25 km)
16.14
Median
14.38
Average
1.9
Low
26.8
High
PM2.5 µg/m³ · Model: 23.6 · Bias: +7.5

What is the 7-day forecast for Tachikawa?

07-21
33.4° 22.1°
14.19 mm
07-22
30.2° 23.7°
3.0 mm
07-23
27.8° 22.1°
0.56 mm
07-24
29.8° 23.6°
1.56 mm
07-25
32.9° 23.6°
07-26
30.3° 26.1°
0.13 mm
07-27
33.3° 24.9°
9.94 mm
Both models agree Avg diff: 2.9°C

Where are air quality stations near Tachikawa?

30
Yaho, Kunitachi, Tokyo, Japan (甲州街道国立国立市)
3.8 km PM2.5: 7.2 µg/m³
70
府中市四谷
5.3 km 84.2% RH PM2.5: 21.0 µg/m³ PM10: 35.0 µg/m³
19
Ogawacho, Kodaira, Tokyo, Japan (小平市小川町小平市)
5.8 km PM2.5: 4.6 µg/m³
30
Ochikawa, Hino, Tokyo, Japan (川崎街道百草園日野市)
6.5 km PM2.5: 7.2 µg/m³
47
Ochikawa, Hino, Tokyo, Japan (川崎街道百草園日野市)
6.5 km PM2.5: 11.3 µg/m³
55
Honchō, Fussa-shi, Tōkyō-to, Japan (福生市本町福生市)
8.5 km PM2.5: 14.0 µg/m³
6
Honchō, Fussa-shi, Tōkyō-to, Japan (福生市本町福生市)
8.5 km PM2.5: 1.4 µg/m³
53
小金井市東町
9.7 km 93.1% RH PM2.5: 13.0 µg/m³ PM10: 35.0 µg/m³
36
Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)
10.1 km PM2.5: 8.6 µg/m³
15
Chuocho, Higashikurume, Tokyo, Japan (小金井街道東久留米東久留米市)
10.2 km PM2.5: 3.6 µg/m³

What cities are near Tachikawa?

65 Kunitachi 60 Akishima 56 Musashimurayama 64 Hino 56 Kokubunji 57 Yokota 54 Kodaira 53 Higashiyamato 52 Higashimurayama 59 Fuchū
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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 2026-07-21T23:12 UTC.