Air Quality in Hikari, Japan

Drizzle
25.9°C · 91.7% humidity
25.9°
Feels 25.9°
57
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
4 stations

Nearby Monitoring Stations

AQI Forecast
34 7am
34
34
57 10am
60
61
63 1pm
64
64
53 4pm
53
53
54 7pm
54
34
54 10pm
54
54
54 1am
54
54
54 4am
54
54
AD 728×90

Air Quality Index Trend

43h · 10 stn

Hikari'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 Hikari is 1.0× the WHO 24-hour guideline of 15 µg/m³.

91.7%
Humidity
61.5 km/h
Wind ENE
994.2 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
57
15.05 µg/m³
PM10
38
41.2 µg/m³
050100150200300500

What is the weather forecast for Hikari?

Temperature & Precipitation

PM2.5 Trend

43h · 10 stations
PM2.515.05 µg/m³ ✓ WHO
Moderate
PM1041.2 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (4 stations within 25 km)
15.05
Median
16.77
Average
13.1
Low
20.2
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +1.3

What is the 7-day forecast for Hikari?

07-22
26.5° 23.1°
1.25 mm
07-23
28.3° 18.2°
17.37 mm
07-24
27.6° 24.7°
5.63 mm
07-25
31.3° 21.8°
1.19 mm
07-26
32.0° 23.5°
7.0 mm
07-27
28.2° 22.6°
07-28
28.7° 23.7°
6.69 mm
Both models agree Avg diff: 3.5°C

Where are air quality stations near Hikari?

20
Mitsui, Hikari, Yamaguchi, Japan (光高校光市)
0.9 km PM2.5: 4.8 µg/m³
25
Otemachi, Kudamatsu, Yamaguchi, Japan (下松市役所下松市)
9.9 km PM2.5: 6.0 µg/m³
72
Otemachi, Kudamatsu, Yamaguchi, Japan (下松市役所下松市)
9.9 km PM2.5: 22.1 µg/m³
25
Minamimachi, Yanai, Yamaguchi, Japan (柳井市役所柳井市)
14.0 km PM2.5: 6.0 µg/m³
18
Mōrichō, Shūnan-shi, Yamaguchi-ken, Japan (周南総合庁舎周南市)
17.0 km PM2.5: 4.3 µg/m³
42
Mōrichō, Shūnan-shi, Yamaguchi-ken, Japan (周南総合庁舎周南市)
17.0 km PM2.5: 10.1 µg/m³
26
Miyanomae, Shunan, Yamaguchi, Japan (宮の前児童公園周南市)
21.6 km PM2.5: 6.2 µg/m³
9
Yamatemachi, Iwakuni, Yamaguchi, Japan (麻里布小学校岩国市)
34.3 km PM2.5: 2.2 µg/m³

What cities are near Hikari?

65 Kudamatsu 68 Yanai 59 Tokuyama 58 Shūnan 74 Iwakuni 72 Hōfu 98 Ōtake 89 Ōno-hara 56 Kunisaki 80 Yamaguchi
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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 2026-07-22T01:18 UTC.