Air Quality in Nagasaki, Japan

Drizzle
23.7°C · 83.6% humidity
23.7°
Feels 23.7°
82
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
42 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
68 8am
68
68
82 11am
78
76
74 2pm
72
71
70 5pm
69
69
69 8pm
68
68
69 11pm
69
131
131 2am
131
69
69 5am
69
69
Station readings 4h ago
AQI 10
PM2.5 2.4 µg/m³ · 4h ago
CAMS model adj -15
83
83
83
84
84
84
84
84
84
83
83
83
83
83
83
84
84
146
146
146
84
84
84
84
AD 728×90

Air Quality Index Trend

6h · 1 stn

Nagasaki'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. Current PM2.5 concentration in Nagasaki is 1.8× the WHO 24-hour guideline of 15 µg/m³.

83.6%
Humidity
54.5 km/h
Wind NNW
1002.6 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
82
26.76 µg/m³
PM10
51
54.9 µg/m³
050100150200300500

What is the weather forecast for Nagasaki?

Temperature & Precipitation

PM2.5 Trend

6h · 1 station
PM2.526.76 µg/m³ ×1.8 WHO
Moderate
PM1054.9 µg/m³
Moderate
UV INDEX24.9
Extreme
AD 300×250
Station readings (42 stations within 25 km)
26.76
Median
22.5
Average
4.3
Low
57.4
High
PM2.5 µg/m³ · Model: 27.55 · Bias: +0.8

What is the 7-day forecast for Nagasaki?

07-22
30.2° 23.7°
3.0 mm
07-23
27.8° 22.1°
0.56 mm
07-24
29.8° 23.6°
1.56 mm
07-25
32.9° 23.6°
07-26
30.3° 26.1°
0.13 mm
07-27
33.3° 24.9°
9.94 mm
07-28
29.6° 26.3°
12.63 mm
Both models agree Avg diff: 2.9°C

Where are air quality stations near Nagasaki?

74
Nerima (練馬区)
3.4 km PM2.5: 23.0 µg/m³
72
Yamatocho, Itabashi, Tokyo, Japan (中山道大和町板橋区)
3.6 km PM2.5: 22.1 µg/m³
50
Wakamiya, Nakano, Tokyo, Japan (中野区若宮中野区)
4.0 km PM2.5: 12.0 µg/m³
65
Naitomachi, Shinjuku, Tokyo, Japan (国設新宿新宿区)
5.1 km PM2.5: 18.8 µg/m³
6
Oji, Kita, Tokyo, Japan (北本通り王子北区)
5.9 km PM2.5: 1.4 µg/m³
84
Suginami, Izumi-3
6.6 km PM2.5: 27.6 µg/m³ PM10: 31.5 µg/m³
46
Shakujiimachi, Nerima, Tokyo, Japan (練馬区石神井台練馬区)
7.7 km PM2.5: 11.0 µg/m³
21
Suwa, Wakō-shi, Saitama-ken, Japan (和光和光市)
8.4 km PM2.5: 5.0 µg/m³
51
Suwa, Wakō-shi, Saitama-ken, Japan (和光和光市)
8.4 km PM2.5: 12.1 µg/m³
80
Hibiyakoen, Chiyoda, Tokyo, Japan (日比谷交差点千代田区)
9.2 km PM2.5: 25.9 µg/m³

What cities are near Nagasaki?

87 Shimo’ochiai 81 Ikebukuro 76 Sakuradai 78 Itabashi 109 Ōkubo 81 Nakano 82 Ōtsuka 80 Sugamo 114 Tokyo 148 Shinjuku
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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 2026-07-22T02:18 UTC.