Air Quality in Nagasaki, Japan

Drizzle
20.7°C · 93.2% humidity
20.7°
Feels 20.7°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast
66 6am
66
83
32 9am
46
56
47 12pm
52
56
59 3pm
61
62
63 6pm
52
53
53 9pm
53
54
54 12am
54
54
54 3am
54
54
AD 728×90

Air Quality Index Trend

47h · 19 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 1.6× the WHO annual guideline of 5 µg/m³.

93.2%
Humidity
26.6 km/h
Wind ESE
1004.8 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
32
7.82 µg/m³
PM10▲
72
98.05 µg/m³
050100150200300500

What is the weather forecast for Nagasaki?

Temperature & Precipitation

PM2.5 Trend

47h · 19 stations
PM2.57.82 µg/m³ ✓ WHO
Good
PM1098.05 µg/m³
Moderate
UV INDEX10.9
Extreme
AD 300×250
Station readings (8 stations within 25 km)
7.82
Median
10.43
Average
5.5
Low
14.0
High
PM2.5 µg/m³ · Model: 20.75 · Bias: +12.9

What is the 7-day forecast for Nagasaki?

05-29
22.2° 19.8°
0.88 mm
05-30
21.4° 20.1°
05-31
21.6° 21.1°
06-01
23.3° 19.8°
2.25 mm
06-02
24.9° 21.6°
06-03
23.0° 19.6°
29.69 mm
06-04
22.0° 19.8°
92.81 mm
Both models agree Avg diff: 2.7°C

Where are air quality stations near Nagasaki?

26
Nagasaki (長崎)
0.5 km PM2.5: 6.2 µg/m³
28
Kogakuramachi, Nagasaki, Nagasaki, Japan (小ケ倉支所長崎市)
5.9 km PM2.5: 6.7 µg/m³
25
Yagamimachi, Nagasaki, Nagasaki, Japan (東長崎支所長崎市)
7.0 km PM2.5: 6.0 µg/m³
21
Yagamimachi, Nagasaki, Nagasaki, Japan (東長崎支所長崎市)
7.0 km PM2.5: 5.0 µg/m³
25
Nodago, Nagasaki, Japan (時津小学校大気測定局西彼杵郡時津町)
9.3 km PM2.5: 6.0 µg/m³
35
Kinkaimura Matsumachi, Nagasaki, Nagasaki, Japan (村松長崎市)
15.7 km PM2.5: 8.4 µg/m³
53
Mawatarimachi, Isahaya, Nagasaki, Japan (諫早諌早市)
16.7 km PM2.5: 13.1 µg/m³
38
Mawatarimachi, Isahaya, Nagasaki, Japan (諫早諌早市)
16.7 km PM2.5: 9.1 µg/m³
39
Nishisanjocho, Omura, Nagasaki, Japan (大村大気測定局大村市)
19.5 km PM2.5: 9.4 µg/m³
37
Osetocho Yukinourakamigo, Saikai, Nagasaki, Japan (雪浦大気測定局西海市)
27.8 km PM2.5: 8.9 µg/m³

What cities are near Nagasaki?

41 Obita 42 Togitsu 46 Isahaya 52 Ōmura 40 Saikai 38 Unzen 34 Minamishimabara 18 Hondomachi-hondo 35 Ureshinomachi-shimojuku 13 Amakusa
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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 2026-05-29T00:17 UTC.