What is the air quality in Chichibu today?

The current Air Quality Index (AQI) in Chichibu is 52 (Moderate). PM2.5 concentration is 12.42 µg/m³.

What is the temperature in Chichibu right now?

The current temperature in Chichibu is 11.2°C (feels like 11.2°C). Humidity is 94.3% and wind speed is 8.5 km/h.

Air Quality in Chichibu, Japan

Drizzle

11.2°C · 94.3% humidity

11.2°

Feels 11.2°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

3 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 41 stn

View full history →

Chichibu'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.

94.3%

Humidity

8.5 km/h

Wind ENE

1021.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

12.42 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Chichibu?

Temperature & Precipitation

PM2.5 Trend

45h · 41 stations

PM2.512.42 µg/m³ ✓ WHO

Moderate

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (3 stations within 25 km)

12.42

Median

9.47

Average

3.8

Low

14.5

High

PM2.5 µg/m³ · Model: 6.5 · Bias: -5.9

What is the 7-day forecast for Chichibu?

10-21

16.0° 10.1°

0.31 mm

10-22

18.1° 12.9°

0.94 mm

10-23

19.4° 7.6°

10-24

14.2° 12.8°

0.88 mm

10-25

15.5° 7.4°

7.25 mm

10-26

14.7° 8.0°

0.06 mm

10-27

13.8° 9.4°

1.37 mm

Both models agree Avg diff: 4.2°C

Where are air quality stations near Chichibu?

Shiroishi, Saitama Prefecture, Japan (東秩父秩父郡東秩父村)

9.2 km PM2.5: 14.5 µg/m³

Ōtsuka, Saitama-ken, Japan (小川比企郡小川町)

18.4 km PM2.5: 10.1 µg/m³

Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)

22.1 km PM2.5: 3.8 µg/m³

Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)

33.9 km PM2.5: 23.0 µg/m³

Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)

33.9 km PM2.5: 15.9 µg/m³

What cities are near Chichibu?

51 Yorii 42 Ogawamachi 22 Morohongō 51 Kodamachō-kodamaminami 48 Ranzan 39 Hannō 32 Hidaka 34 Ōme 52 Sakado 56 Yamata

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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.