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.
50 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
31 8am
19
19
18 11am
19
19
19 2pm
19
19
19 5pm
19
31
31 8pm
31
31
31 11pm
19
19
19 2am
19
0
0 5am
0
0
Station readings
4
4
CAMS model adj -35
66
54
54
54
54
54
54
54
54
54
54
66
66
66
66
66
54
54
54
54
34
27
25
27
AD 728×90

Air Quality Index Trend

37h · 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
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
18
4.35 µg/m³
PM10▲
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Niiza?

Temperature & Precipitation

PM2.5 Trend

37h · 1 station
PM2.54.35 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (50 stations within 25 km)
4.35
Median
4.59
Average
0.94
Low
11.0
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +6.5

What is the 7-day forecast for Niiza?

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
06-15
27.2° 21.0°
12.0 mm
Both models agree Avg diff: 2.3°C

Where are air quality stations near Niiza?

22
Higashitokorozawa, Tokorozawa, Saitama, Japan (所沢市東所沢所沢市)
4.0 km PM2.5: 5.3 µg/m³
21
Higashitokorozawa, Tokorozawa, Saitama, Japan (所沢市東所沢所沢市)
4.0 km PM2.5: 5.0 µg/m³
–
Tsuruma, Fujimi-shi, Saitama-ken, Japan (富士見富士見市)
4.1 km
25
Honda, Niiza-shi, Saitama-ken, Japan (新座新座市)
4.6 km PM2.5: 6.0 µg/m³
16
Niikura, Wakō-shi, Saitama-ken, Japan (和光新倉自排和光市)
5.5 km PM2.5: 3.8 µg/m³
28
Niikura, Wakō-shi, Saitama-ken, Japan (和光新倉自排和光市)
5.5 km PM2.5: 6.7 µg/m³
23
Suwa, Wakō-shi, Saitama-ken, Japan (和光和光市)
7.2 km PM2.5: 5.5 µg/m³
54
Suwa, Wakō-shi, Saitama-ken, Japan (和光和光市)
7.2 km PM2.5: 13.5 µg/m³
25
Chuocho, Higashikurume, Tokyo, Japan (小金井街道東久留米東久留米市)
8.6 km PM2.5: 6.0 µg/m³
65
Shakujiimachi, Nerima, Tokyo, Japan (練馬区石神井台練馬区)
9.7 km PM2.5: 18.8 µg/m³

What cities are near Niiza?

17 Miyoshidai 18 Shiki 19 Asaka 17 Ōi 20 Kiyose 19 Ōizumi-gakuenchō 19 Wako 18 Kamifukuoka 19 Ōizumimachi 20 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 2026-06-09T02:21 UTC.