Air Quality in Tomakomai, Japan

Drizzle
17.7°C · 94.0% humidity
17.7°
Feels 17.7°
58
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
3 stations

Nearby Monitoring Stations

AQI Forecast
83 4pm
83
83
58 7pm
65
70
57 10pm
76
78
80 1am
81
82
82 4am
82
82
83 7am
83
66
54 10am
54
54
54 1pm
54
66
AD 728×90

Air Quality Index Trend

45h · 4 stn

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

94.0%
Humidity
44.1 km/h
Wind SSE
1014.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
58
15.48 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Tomakomai?

Temperature & Precipitation

PM2.5 Trend

45h · 4 stations
PM2.515.48 µg/m³ ✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (3 stations within 25 km)
15.48
Median
17.3
Average
12.0
Low
21.1
High
PM2.5 µg/m³ · Model: 16.55 · Bias: +1.1

What is the 7-day forecast for Tomakomai?

09-05
20.9° 14.6°
23.31 mm
09-06
23.9° 15.1°
0.25 mm
09-07
21.4° 15.1°
0.38 mm
09-08
22.8° 11.4°
7.63 mm
09-09
21.5° 17.4°
3.81 mm
09-10
21.5° 15.6°
2.25 mm
09-11
19.6° 13.6°
20.5 mm
Both models agree Avg diff: 2.0°C

Where are air quality stations near Tomakomai?

63
Nisshinchō, Tomakomai-shi, Hokkaidō, Japan (糸井苫小牧市)
5.6 km PM2.5: 17.8 µg/m³
63
Nisshinchō, Tomakomai-shi, Hokkaidō, Japan (糸井苫小牧市)
5.6 km PM2.5: 17.8 µg/m³
50
Nisshinchō, Tomakomai-shi, Hokkaidō, Japan (糸井苫小牧市)
5.6 km PM2.5: 12.0 µg/m³
55
Nisshinchō, Tomakomai-shi, Hokkaidō, Japan (糸井苫小牧市)
5.6 km PM2.5: 14.0 µg/m³
70
Numanohata, Tomakomai, Hokkaido Prefecture, Japan (沼ノ端公園苫小牧市)
8.9 km PM2.5: 21.1 µg/m³
70
Numanohata, Tomakomai, Hokkaido Prefecture, Japan (沼ノ端公園苫小牧市)
8.9 km PM2.5: 21.1 µg/m³
65
Numanohata, Tomakomai, Hokkaido Prefecture, Japan (沼ノ端公園苫小牧市)
8.9 km PM2.5: 18.8 µg/m³
65
Numanohata, Tomakomai, Hokkaido Prefecture, Japan (沼ノ端公園苫小牧市)
8.9 km PM2.5: 18.8 µg/m³

What cities are near Tomakomai?

64 Chitose 50 Shiraoi 62 Eniwa 55 Kitahiroshima 70 Noboribetsu 34 Sapporo 48 Ebetsu 70 Muroran 70 Date 46 Iwamizawa
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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 2026-09-05T10:27 UTC.