What is the air quality in Nikkō today?

The current Air Quality Index (AQI) in Nikkō is 16 (Good). PM2.5 concentration is 3.8 µg/m³.

What is the temperature in Nikkō right now?

The current temperature in Nikkō is 17.9°C (feels like 17.9°C). Humidity is 98.7% and wind speed is 17.3 km/h.

Is it safe to go outside in Nikkō?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 19.9 (Extreme).

Air Quality in Nikkō, Japan

Heavy Rain

17.9°C · 98.7% humidity

17.9°

Feels 17.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

25 7am

16 10am

22 1pm

24 4pm

25 7pm

27 10pm

27 1am

25 4am

Air Quality Index Trend

44h · 6 stn

View full history →

Nikkō'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.

98.7%

Humidity

17.3 km/h

Wind ENE

1004.8 hPa

Pressure

19.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

3.8 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Nikkō?

Temperature & Precipitation

PM2.5 Trend

44h · 6 stations

PM2.53.8 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX19.9

Extreme

Station readings (1 station within 25 km)

3.8

Median

3.8

Average

3.8

Low

3.8

High

PM2.5 µg/m³ · Model: 5.9 · Bias: +2.1

What is the 7-day forecast for Nikkō?

07-22

22.0° 16.8°

32.75 mm

07-23

18.7° 13.1°

4.56 mm

07-24

20.1° 17.4°

3.5 mm

07-25

23.4° 15.0°

10.69 mm

07-26

24.1° 16.0°

1.25 mm

07-27

20.4° 17.5°

11.0 mm

07-28

24.9° 17.9°

7.31 mm

Both models agree Avg diff: 3.1°C

Where are air quality stations near Nikkō?

Imaichi, Nikko, Tochigi, Japan (日光市今市小学校日光市)

6.3 km PM2.5: 10.1 µg/m³

Utsunomiya (宇都宮)

32.1 km PM2.5: 6.0 µg/m³

What cities are near Nikkō?

40 Imaichi 17 Kanuma 68 Yaita 35 Utsunomiya 54 Ujiie 61 Sakura 51 Hōshakuji 68 Ōtawara 50 Mibu 52 Tochigi

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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 2026-07-22T01:11 UTC.