Iruma
Japan · Nearby tracks
Iruma City is "Saitama's base city." Iruma is in Saitama Prefecture. Population is about 140,000. Iruma has Japan Air Self-Defense Force base. For Iruma residents, "airplanes" are daily life. For Iruma residents, "speed" is airplane speed. Not car speed. For Iruma residents, "cars" are unnecessary. Iruma has no circuit. Iruma residents not interested in motorsport.
Average Weather
Driving season: March–May
Iruma averages cool winters (8–11°C) and warm, humid summers (29–30°C) with peak rainfall June–September, making spring (March–May, 14–23°C, 12 rain days) the ideal track-day season.
10-yr monthly averages Rain days Driving season
map
Tracks
| Track | Location | Length km | Laps | Avg Time | Avg kph | Distance km |
|---|---|---|---|---|---|---|
| Tsukuba Circuit | Ibaraki, Japan | 2.04 | 61 | 1:02.5 | 117 | 94.9 |
| Fuji International Speedway | Shizuoka, Japan | 4.54 | 58 | 1:56.7 | 140 | 106.6 |
| Sodegaura Forest Raceway | Chiba, Japan | 2.4 | 17 | 1:16.2 | 114 | 128.4 |
| Gunma Cycle Sports Center | Minakami, Japan | 1.23 | 0 | — | — | 169.9 |
| Mobility Resort Motegi - Twin Ring Motegi | Motegi, Japan | 4.8 | 9 | 2:18.2 | 126 | 172.1 |
| Nikko Circuit | Utsunomiya, Japan | 1.03 | 7 | 0:43.4 | 85 | 178.3 |
| Ebisu Circuit | Nihommatsu, Japan | 2.06 | 9 | 1:09.7 | 107 | 351.2 |
| Spa Nishiura Motor Park | Gamagori, Japan | 1.56 | 19 | 1:00.1 | 95 | 373.3 |
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