Air Quality in Niiza, Japan

Cloudy
21.5°C · 71.7% humidity
21.5°
Feels 21.5°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
33 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
43 5am
43
43
18 8am
13
18
22 11am
24
26
28 2pm
29
29
30 5pm
30
42
43 8pm
43
43
43 11pm
31
31
31 2am
31
11
Station readings
2
CAMS model adj -23
66
66
66
66
54
54
54
54
54
54
54
54
54
54
66
66
66
66
66
54
54
54
54
34
AD 728×90

Air Quality Index Trend

38h · 1 stn

Niiza'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.

71.7%
Humidity
29.8 km/h
Wind S
1015.4 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
18
4.18 µg/m³
PM10▲
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Niiza?

Temperature & Precipitation

PM2.5 Trend

38h · 1 station
PM2.54.18 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (33 stations within 25 km)
4.18
Median
4.65
Average
0.48
Low
9.1
High
PM2.5 µg/m³ · Model: 12.85 · Bias: +8.7

What is the 7-day forecast for Niiza?

06-08
27.7° 18.6°
5.75 mm
06-09
23.3° 21.5°
0.13 mm
06-10
28.6° 19.0°
3.81 mm
06-11
26.3° 19.7°
0.38 mm
06-12
24.3° 19.6°
1.0 mm
06-13
30.7° 21.4°
3.69 mm
06-14
29.7° 18.3°
39.69 mm
Both models agree Avg diff: 2.3°C

Where are air quality stations near Niiza?

45
Higashitokorozawa, Tokorozawa, Saitama, Japan (所沢市東所沢所沢市)
4.0 km PM2.5: 10.8 µg/m³
16
Higashitokorozawa, Tokorozawa, Saitama, Japan (所沢市東所沢所沢市)
4.0 km PM2.5: 3.8 µg/m³
25
Tsuruma, Fujimi-shi, Saitama-ken, Japan (富士見富士見市)
4.1 km PM2.5: 6.0 µg/m³
35
Honda, Niiza-shi, Saitama-ken, Japan (新座新座市)
4.6 km PM2.5: 8.4 µg/m³
55
Niikura, Wakō-shi, Saitama-ken, Japan (和光新倉自排和光市)
5.5 km PM2.5: 14.0 µg/m³
37
Niikura, Wakō-shi, Saitama-ken, Japan (和光新倉自排和光市)
5.5 km PM2.5: 8.9 µg/m³
25
Suwa, Wakō-shi, Saitama-ken, Japan (和光和光市)
7.2 km PM2.5: 6.0 µg/m³
54
Suwa, Wakō-shi, Saitama-ken, Japan (和光和光市)
7.2 km PM2.5: 13.5 µg/m³
53
Chuocho, Higashikurume, Tokyo, Japan (小金井街道東久留米東久留米市)
8.6 km PM2.5: 13.1 µg/m³
30
Shakujiimachi, Nerima, Tokyo, Japan (練馬区石神井台練馬区)
9.7 km PM2.5: 7.2 µg/m³

What cities are near Niiza?

18 Miyoshidai 19 Shiki 19 Asaka 20 Ōi 17 Kiyose 18 Ōizumi-gakuenchō 18 Wako 24 Kamifukuoka 18 Ōizumimachi 18 Narimasu
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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 2026-06-08T23:19 UTC.