Air Quality in Iyo, Japan

Heavy Rain
18.8°C · 90.9% humidity
18.8°
Feels 18.8°
43
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast
54 6am
54
54
43 9am
58
77
79 12pm
63
64
65 3pm
65
65
53 6pm
54
66
66 9pm
54
54
54 12am
54
54
54 3am
54
34
AD 728×90

Air Quality Index Trend

47h · 9 stn

Iyo'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 Iyo is 2.1× the WHO annual guideline of 5 µg/m³.

90.9%
Humidity
85.5 km/h
Wind SSE
1003.3 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
43
10.33 µg/m³
PM10▲
44
48.05 µg/m³
050100150200300500

What is the weather forecast for Iyo?

Temperature & Precipitation

PM2.5 Trend

47h · 9 stations
PM2.510.33 µg/m³ ✓ WHO
Good
PM1048.05 µg/m³
Good
UV INDEX7.9
Very High
AD 300×250
Station readings (10 stations within 25 km)
10.33
Median
9.63
Average
7.2
Low
12.0
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +6.0

What is the 7-day forecast for Iyo?

05-29
19.9° 18.7°
16.06 mm
05-30
21.1° 19.2°
0.62 mm
05-31
19.9° 19.0°
06-01
21.0° 17.9°
2.81 mm
06-02
21.4° 19.7°
06-03
23.0° 18.2°
6.06 mm
06-04
21.5° 18.9°
0.88 mm
Both models agree Avg diff: 1.2°C

Where are air quality stations near Iyo?

64
Kitakuroda, Ehime, Japan (松前伊予郡松前町)
3.3 km PM2.5: 18.3 µg/m³
42
Nishihabumachi, Matsuyama, Ehime, Japan (垣生小学校松山市)
6.7 km PM2.5: 10.1 µg/m³
53
Tomihisamachi, Matsuyama, Ehime, Japan (富久町松山市)
8.3 km PM2.5: 13.1 µg/m³
53
Asodamachi, Matsuyama, Ehime, Japan (朝生田松山市)
9.5 km PM2.5: 13.1 µg/m³
17
Kitasayacho, Matsuyama, Ehime, Japan (味生松山市)
10.3 km PM2.5: 4.1 µg/m³
17
Kitasayacho, Matsuyama, Ehime, Japan (味生松山市)
10.3 km PM2.5: 4.1 µg/m³
23
Matsuyama (松山)
11.4 km PM2.5: 5.5 µg/m³
1
Matsuyama (松山)
11.4 km PM2.5: 0.2 µg/m³
21
Taisanjicho, Matsuyama, Ehime, Japan (和気松山市)
15.5 km PM2.5: 5.0 µg/m³
47
Kuma, Ehime, Japan (久万高原上浮穴郡久万町)
21.5 km PM2.5: 11.3 µg/m³

What cities are near Iyo?

44 Masaki-chō 40 Haramachi 30 Matsuyama 39 Tōon 32 Uchiko 40 Hōjō 41 Shinagawa 31 Ōzu 28 Yawatahama 29 Imabari
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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 2026-05-29T00:10 UTC.