Air Quality in Ranzan, Japan

Cloudy
26.0°C · 73.1% humidity
26.0°
Feels 26.0°
51
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
20 10am
18
18
51 1pm
42
35
30 4pm
27
24
22 7pm
21
20
20 10pm
19
19
19 1am
18
18
18 4am
18
18
18 7am
18
0
Station readings
20
CAMS model adj -36
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
34
AD 728×90

Air Quality Index Trend

4h · 2 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.

73.1%
Humidity
31.9 km/h
Wind ESE
1009.4 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
51
12.35 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Ranzan?

Temperature & Precipitation

PM2.5 Trend

4h · 2 stations
PM2.512.35 µg/m³ ✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (3 stations within 25 km)
12.35
Median
12.3
Average
8.9
Low
14.0
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +1.1

What is the 7-day forecast for Ranzan?

08-03
27.3° 22.4°
9.69 mm
08-04
35.3° 24.8°
2.63 mm
08-05
33.4° 24.7°
2.69 mm
08-06
29.9° 25.2°
26.94 mm
08-07
38.1° 24.7°
21.75 mm
08-08
34.8° 25.9°
55.44 mm
08-09
35.7° 21.9°
1.31 mm
Both models agree Avg diff: 3.4°C

Where are air quality stations near Ranzan?

21
Miyacho, Kumagaya, Saitama, Japan (熊谷熊谷市)
12.2 km PM2.5: 5.0 µg/m³
38
Sakurazawa, Saitama Prefecture, Japan (寄居桜沢自排大里郡寄居町)
12.5 km PM2.5: 9.1 µg/m³
56
Shiroishi, Saitama Prefecture, Japan (東秩父秩父郡東秩父村)
13.5 km PM2.5: 14.5 µg/m³
10
Ōtagaya, Tsurugashima-shi, Saitama-ken, Japan (鶴ヶ島自排鶴ヶ島市)
15.6 km PM2.5: 2.4 µg/m³
30
Kawajima, Saitama-ken, Japan (川島自排比企郡川島町)
15.6 km PM2.5: 7.2 µg/m³
44
Haragō, Fukaya-shi, Saitama-ken, Japan (深谷原郷自排深谷市)
16.0 km PM2.5: 10.6 µg/m³
30
Nagano, Gyōda-shi, Saitama-ken, Japan (行田行田市)
16.8 km PM2.5: 7.2 µg/m³
38
Nakakayama, Hidaka, Saitama, Japan (日高日高市)
18.2 km PM2.5: 9.1 µg/m³
42
Chuo, Konosu, Saitama, Japan (鴻巣鴻巣市)
18.7 km PM2.5: 10.1 µg/m³
36
Miyashitamachi, Kawagoe, Saitama, Japan (川越市川越川越市)
21.0 km PM2.5: 8.6 µg/m³

What cities are near Ranzan?

55 Ogawamachi 47 Yamata 51 Higashi-Matsuyama 47 Kumagaya 55 Yorii 45 Sakado 51 Fukiage-fujimi 45 Tsurugashima 53 Morohongō 49 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 2026-08-08T04:46 UTC.