What is the air quality in Nagai today?

The current Air Quality Index (AQI) in Nagai is 21 (Good). PM2.5 concentration is 5.0 µg/m³.

What is the temperature in Nagai right now?

The current temperature in Nagai is 20.8°C (feels like 20.8°C). Humidity is 59.9% and wind speed is 6.3 km/h.

Is it safe to go outside in Nagai?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 17.4 (Extreme).

Air Quality in Nagai, Japan

Partly Cloudy

20.8°C · 59.9% humidity

20.8°

Feels 20.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 2 stn

View full history →

Nagai'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.

59.9%

Humidity

6.3 km/h

Wind N

1015.3 hPa

Pressure

17.4

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.0 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Nagai?

Temperature & Precipitation

PM2.5 Trend

46h · 2 stations

PM2.55.0 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX17.4

Extreme

Station readings (1 station within 25 km)

5.0

Median

5.0

Average

5.0

Low

5.0

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +1.0

What is the 7-day forecast for Nagai?

06-09

23.8° 13.6°

0.13 mm

06-10

16.7° 13.8°

1.94 mm

06-11

25.9° 13.4°

2.19 mm

06-12

16.5° 13.6°

1.44 mm

06-13

25.0° 10.8°

0.19 mm

06-14

27.8° 15.3°

06-15

26.1° 14.5°

2.0 mm

Both models agree Avg diff: 2.8°C

Where are air quality stations near Nagai?

Kanaike, Yonezawa, Yamagata, Japan (米沢金池米沢市)

21.6 km PM2.5: 5.0 µg/m³

What cities are near Nagai?

21 Nanyō 21 Takahata 25 Kaminoyama 21 Yonezawa 26 Yamagata 24 Sagae 25 Tendō 23 Yachi 23 Higashine 25 Murakami

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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 2026-06-09T02:13 UTC.