What is the air quality in Isahaya today?

The current Air Quality Index (AQI) in Isahaya is 2 (Good). PM2.5 concentration is 0.39 µg/m³.

What is the temperature in Isahaya right now?

The current temperature in Isahaya is 22.6°C (feels like 22.6°C). Humidity is 81.9% and wind speed is 57.7 km/h.

Is it safe to go outside in Isahaya?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Isahaya, Japan

Drizzle

22.6°C · 81.9% humidity

22.6°

Feels 22.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

6 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 22 stn

View full history →

Isahaya'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.

81.9%

Humidity

57.7 km/h

Wind SSW

1015.2 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

0.39 µg/m³

PM10▲

41.2 µg/m³

050100150200300500

What is the weather forecast for Isahaya?

Temperature & Precipitation

PM2.5 Trend

46h · 22 stations

PM2.50.39 µg/m³ ✓ WHO

Good

PM1041.2 µg/m³

Good

UV INDEX0.0

Low

Station readings (6 stations within 25 km)

0.39

Median

4.52

Average

0.2

Low

11.0

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +13.1

What is the 7-day forecast for Isahaya?

10-21

22.6° 17.6°

4.31 mm

10-22

27.2° 19.0°

10-23

26.0° 16.6°

1.5 mm

10-24

23.1° 18.5°

0.56 mm

10-25

20.1° 11.9°

1.06 mm

10-26

20.5° 12.6°

10-27

20.5° 14.4°

Both models agree Avg diff: 4.5°C

Where are air quality stations near Isahaya?

Mawatarimachi, Isahaya, Nagasaki, Japan (諫早諌早市)

1.8 km PM2.5: 0.2 µg/m³

Mawatarimachi, Isahaya, Nagasaki, Japan (諫早諌早市)

1.8 km PM2.5: 0.2 µg/m³

Yagamimachi, Nagasaki, Nagasaki, Japan (東長崎支所長崎市)

11.2 km PM2.5: 1.2 µg/m³

Nodago, Nagasaki, Japan (時津小学校大気測定局西彼杵郡時津町)

18.4 km PM2.5: 2.4 µg/m³

Nodago, Nagasaki, Japan (時津小学校大気測定局西彼杵郡時津町)

18.4 km PM2.5: 2.2 µg/m³

Obamacho Kitahonmachi, Unzen, Nagasaki, Japan (小浜大気測定局雲仙市)

19.8 km PM2.5: 11.0 µg/m³

Kogakuramachi, Nagasaki, Nagasaki, Japan (小ケ倉支所長崎市)

23.5 km PM2.5: 10.1 µg/m³

Kinkaimura Matsumachi, Nagasaki, Nagasaki, Japan (村松長崎市)

24.2 km PM2.5: 2.2 µg/m³

What cities are near Isahaya?

6 Ōmura 10 Obita 22 Nagasaki 10 Togitsu 43 Unzen 38 Minamishimabara 21 Kashima 19 Ureshinomachi-shimojuku 30 Shimabara 13 Saikai

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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 2026-10-21T07:41 UTC.