Air Quality in Ranzan, Japan

Partly Cloudy
22.5°C · 64.9% humidity
22.5°
Feels 22.5°
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
17 stations

Nearby Monitoring Stations

AQI Forecast
54 6am
54
54
12 9am
0
5
12 12pm
16
26
48 3pm
50
51
52 6pm
53
53
33 9pm
24
25
25 12am
25
27
27 3am
27
27
AD 728×90

Air Quality Index Trend

47h · 34 stn

Ranzan'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.

64.9%
Humidity
16.8 km/h
Wind NNE
997.1 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
12
2.96 µg/m³
PM10▲
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Ranzan?

Temperature & Precipitation

PM2.5 Trend

47h · 34 stations
PM2.52.96 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250
Station readings (17 stations within 25 km)
2.96
Median
4.12
Average
0.2
Low
11.0
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +13.4

What is the 7-day forecast for Ranzan?

05-29
25.8° 20.2°
2.5 mm
05-30
25.6° 17.5°
1.19 mm
05-31
27.7° 20.4°
0.13 mm
06-01
28.9° 21.0°
06-02
28.1° 19.8°
06-03
29.6° 23.0°
0.25 mm
06-04
28.6° 16.4°
5.38 mm
Both models agree Avg diff: 3.6°C

Where are air quality stations near Ranzan?

27
Ōtsuka, Saitama-ken, Japan (小川比企郡小川町)
4.8 km PM2.5: 6.5 µg/m³
38
Ōtsuka, Saitama-ken, Japan (小川比企郡小川町)
4.8 km PM2.5: 9.1 µg/m³
34
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
8.5 km PM2.5: 8.2 µg/m³
38
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
8.5 km PM2.5: 9.1 µg/m³
30
Goryocho, Higashimatsuyama, Saitama, Japan (東松山東松山市)
9.4 km PM2.5: 7.2 µg/m³
38
Goryocho, Higashimatsuyama, Saitama, Japan (東松山東松山市)
9.4 km PM2.5: 9.1 µg/m³
40
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
11.5 km PM2.5: 9.6 µg/m³
67
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
11.5 km PM2.5: 19.7 µg/m³
36
Ashiyamachō, Sakado-shi, Saitama-ken, Japan (坂戸坂戸市)
12.1 km PM2.5: 8.6 µg/m³
9
Ashiyamachō, Sakado-shi, Saitama-ken, Japan (坂戸坂戸市)
12.1 km PM2.5: 2.2 µg/m³

What cities are near Ranzan?

15 Ogawamachi 10 Yamata 1 Higashi-Matsuyama 11 Kumagaya 25 Yorii 15 Sakado 10 Fukiage-fujimi 16 Tsurugashima 19 Morohongō 9 Ōgushi
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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 2026-05-29T00:11 UTC.