What is the air quality in Yotsuya today?

The current Air Quality Index (AQI) in Yotsuya is 26 (Good). PM2.5 concentration is 6.15 µg/m³.

What is the temperature in Yotsuya right now?

The current temperature in Yotsuya is 15.3°C (feels like 15.3°C). Humidity is 75.2% and wind speed is 39.3 km/h.

Is it safe to go outside in Yotsuya?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Yotsuya, Japan

Drizzle

15.3°C · 75.2% humidity

15.3°

Feels 15.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

40 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings 6h ago

AQI 69

PM2.5 20.6 µg/m³ · 6h ago

Air Quality Index Trend

41h · 1 stn

View full history →

Yotsuya'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.

75.2%

Humidity

39.3 km/h

Wind N

1021.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.15 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Yotsuya?

Temperature & Precipitation

PM2.5 Trend

41h · 1 station

PM2.56.15 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (40 stations within 25 km)

6.15

Median

6.55

Average

2.9

Low

17.8

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -0.2

What is the 7-day forecast for Yotsuya?

10-21

21.6° 15.3°

0.75 mm

10-22

23.3° 18.1°

0.06 mm

10-23

22.5° 15.7°

10-24

21.9° 16.8°

0.94 mm

10-25

19.8° 14.2°

5.63 mm

10-26

20.7° 15.0°

10-27

19.2° 15.1°

0.25 mm

Both models agree Avg diff: 3.1°C

Where are air quality stations near Yotsuya?

Naitomachi, Shinjuku, Tokyo, Japan (国設新宿新宿区)

0.8 km PM2.5: 11.3 µg/m³

Shimoochiai, Shinjuku, Tokyo, Japan (新目白通り下落合新宿区)

2.9 km PM2.5: 4.1 µg/m³

Chuo, Nakano, Tokyo, Japan (山手通り東中野中野区)

3.3 km PM2.5: 3.1 µg/m³

Sasazuka, Shibuya, Tokyo, Japan (甲州街道大原渋谷区)

5.3 km PM2.5: 6.0 µg/m³

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Suginami, Izumi-3

6.4 km PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³

Takanawa, Minato, Tokyo, Japan (第一京浜高輪港区)

6.7 km PM2.5: 17.8 µg/m³

Wakamiya, Nakano, Tokyo, Japan (中野区若宮中野区)

6.9 km PM2.5: 8.2 µg/m³

Hikawachō, Itabashi-ku, Tōkyō-to, Japan (板橋区氷川町板橋区)

7.1 km PM2.5: 4.8 µg/m³

Setagaya (世田谷)

7.5 km PM2.5: 6.0 µg/m³

Nerima (練馬区)

7.8 km PM2.5: 6.0 µg/m³

What cities are near Yotsuya?

23 Shinjuku 20 Ōkubo 18 Tokyo 23 Yoyogi 34 Akasaka 32 Chiyoda 32 Shibuya 22 Shimo’ochiai 25 Ōtsuka 17 Nakano

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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 2026-10-21T05:27 UTC.