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Sasebo (Nagasaki) (JP)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Partly cloudy
3°C
Partly cloudy
Humidity
57.4%
Wind
6 m/s
Pressure
1025.5 hPa
Direction
313°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
1° / 7°
Precip.
0.3mm
Max wind
10.6 m/s

Hourly Forecast

01.02
Now
Weather
6
01.02
18:00
Weather
7
01.02
19:00
Weather
7
01.02
20:00
Weather
6
01.02
21:00
Weather
6
01.02
22:00
Weather
6
01.02
23:00
Weather
02.02
00:00
Weather
02.02
01:00
Weather
6
02.02
02:00
Weather
6
02.02
03:00
Weather
0.3
9
02.02
04:00
Weather
8
02.02
05:00
Weather
11
02.02
06:00
Weather
10
02.02
07:00
Weather
10
02.02
08:00
Weather
10
02.02
09:00
Weather
9
02.02
10:00
Weather
9
02.02
11:00
Weather
8
02.02
12:00
Weather
8
02.02
13:00
Weather
7
02.02
14:00
Weather
7
02.02
15:00
Weather
7
02.02
16:00
Weather
7

Temperature

7°C
1°C
17:00
3°C
18:00
3°C
19:00
3°C
20:00
3°C
21:00
2°C
22:00
2°C
23:00
3°C
00:00
5°C
01:00
6°C
02:00
7°C
03:00
7°C
04:00
6°C
05:00
6°C
06:00
6°C
07:00
5°C
08:00
4°C
09:00
3°C
10:00
3°C
11:00
2°C
12:00
2°C
13:00
3°C
14:00
2°C
15:00
1°C
16:00
1°C
17:00 04:00 16:00

Precipitation

0.3mm
0mm
03:00
0.3mm
17:00 04:00 16:00

Wind

10.6m/s
0m/s
17:00
6.4 m/s
18:00
6.7 m/s
19:00
6.8 m/s
20:00
6.4 m/s
21:00
6.2 m/s
22:00
5.6 m/s
23:00
4.6 m/s
00:00
5 m/s
01:00
5.9 m/s
02:00
6.3 m/s
03:00
8.5 m/s
04:00
8.4 m/s
05:00
10.6 m/s
06:00
10.3 m/s
07:00
10.4 m/s
08:00
9.9 m/s
09:00
9.4 m/s
10:00
9 m/s
11:00
8.4 m/s
12:00
7.5 m/s
13:00
6.9 m/s
14:00
7.1 m/s
15:00
7.2 m/s
16:00
6.6 m/s
17:00 04:00 16:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
80.1 km
136
45.3%

Measurement time: 2026-02-01 16:00

Calculated from PM2.5/PM10

PM2.5
80.1 km
50 µg/m3
59.5%

Measurement time: 2026-02-01 16:00

source: Aqicn

O3
80.1 km
36.1 µg/m3
22.6%

Measurement time: 2026-02-01 16:00

source: Aqicn

PM10
80.1 km
14 µg/m3
10%

Measurement time: 2026-02-01 16:00

source: Aqicn

NO2
80.1 km
6.5 µg/m3
3.3%

Measurement time: 2026-02-01 16:00

source: Aqicn

SO2
80.1 km
1.5 µg/m3
0.4%

Measurement time: 2026-02-01 16:00

source: Aqicn

CO
80.1 km
0.0034 mg/m3
0%

Measurement time: 2026-02-01 16:00

source: Aqicn

Info


Country: Japan
Region: Nagasaki
Latitude: 33.16834
Longitude: 129.72502


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About Air Quality in Sasebo

Air quality in Sasebo is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Sasebo

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Sasebo?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Sasebo

If you're planning outdoor activities in Sasebo, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.