Mount Iboiwa
疣岩山
Aga, Niigata / Nishiaizu, Fukushima / Kitakata, Fukushima · Elevation 1,654 m
Mount Iboiwa is a 1,654 m mountain shared by Aga in Niigata Prefecture and Nishiaizu and Kitakata in Fukushima Prefecture. It lies on the approach from the Yaheishiro trailhead toward Mikunidake and Mount Iide in the Iide range, within Bandai-Asahi National Park.
Mount Iboiwa at a glance
- Weather: The most settled day in the next 7 days is Wed, November 4: clear, gusts up to 6 m/s. Fri, Nov 6, Sat, Nov 7: strong wind (gusts up to 22 m/s).
Mount Iboiwa weather (hourly, 14 days)
Sunrise today 06:08, sunset 16:42
| Tue, 11/3 | Wed, 11/4 | Thu, 11/5 | Fri, 11/6 | Sat, 11/7 | Sun, 11/8 | Mon, 11/9 | Tue, 11/10 | Wed, 11/11 | Thu, 11/12 | Fri, 11/13 | Sat, 11/14 | Sun, 11/15 | Mon, 11/16 | Tue, 11/17 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Japan time | 15 | 17 | 19 | 21 | 23 | 1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 18 | 21 | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 0 | 3 | 6 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | |
| Temperature | °C | 3° | -1° | -3° | -3° | -3° | -3° | -3° | -3° | -1° | 4° | 6° | 7° | 6° | 2° | 2° | 3° | 3° | 5° | 5° | 6° | 7° | 6° | 6° | 6° | 5° | 6° | 7° | 7° | 6° | 4° | 2° | -1° | -2° | -3° | -3° | -3° | -4° | -5° | -5° | -5° | -5° | -5° | -2° | -2° | -3° | -4° | -4° | -4° | -4° | -5° | -2° | -1° | -6° | -9° | 0° | 3° | -2° | -3° | -2° | -1° | -3° | -4° | 0° | 0° | -3° | -2° | -2° | -2° | -4° | -5° | 0° | 3° | -2° | -1° | 5° | 5° | 2° | 4° | 5° | 1° | -4° | -5° | -3° | 0° |
| Precipitation | mm | 2.9 | 13 | 2.8 | 3.0 | 0.2 | 0.3 | 1.8 | 2.0 | 2.7 | 3.5 | 1.2 | 3.2 | 2.5 | 3.4 | 3.8 | 4.4 | 3.8 | 2.3 | 1.7 | 1.2 | 0.4 | 0.7 | 0.3 | 0.3 | 1.1 | 2.5 | 2.4 | 1.5 | 0.2 | 0.2 | 0.9 | 1.4 | 1.7 | 9 | 3.9 | 2.2 | 3.7 | 2.2 | 0.6 | 0.2 | 3.0 | 4.6 | 0.8 | 0.8 | 0.1 | 4.2 | 8 | 4.4 | 8 | 6 | 0.9 | 0.2 | ||||||||||||||||||||||||||||||||
| New snow | cm | 0.4 | 2.0 | 3.2 | 3.4 | 2.0 | 1.7 | 1.2 | 0.4 | 0.7 | 0.3 | 0.3 | 1.0 | 2.1 | 1.8 | 1.2 | 0.2 | 0.1 | 0.8 | 1.4 | <.1 | 0.5 | 3.6 | 3.8 | 1.0 | 2.0 | 1.4 | 1.0 | 0.3 | 0.6 | 0.8 | <.1 | 1.4 | 0.7 | <.1 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Snow depth | cm | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 5 | 5 | 6 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 8 | 7 | 7 | 7 | 6 | 6 | 8 | 10 | 8 | 9 | 9 | 9 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 3 | 3 | 2 | 2 | <1 | 1 | 2 | 2 | 1 |
| Wind | m/s | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 2 | 3 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 3 | 4 | 4 | 3 | 3 | 2 | 3 | 3 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 4 | 2 | 1 | 2 | 2 | 1 | 2 | 4 | 5 | 2 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 2 | 1 | 1 | 5 | 3 | 2 | 2 | 1 |
| Wind gusts | m/s | 14 | 11 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 6 | 9 | 12 | 14 | 13 | 12 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 11 | 15 | 18 | 17 | 15 | 14 | 13 | 13 | 14 | 16 | 21 | 22 | 17 | 15 | 14 | 14 | 14 | 15 | 15 | 13 | 11 | 9 | 8 | 8 | 7 | 6 | 7 | 7 | 6 | 6 | 10 | 13 | 13 | 15 | 18 | 18 | 11 | 8 | 9 | 8 | 11 | 15 | 17 | 17 | 11 | 8 | 7 | 6 | 7 | 8 | 7 | 10 | 10 | 10 | 18 | 20 | 15 | 11 | 6 |
| Wind dir. | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | |
Huts, campsites and lodging near Mount Iboiwa
Mountain huts
- 三国岳避難小屋 2026: open July 3–October 11 · sleeps 50
- 秡川山荘 unstaffed
- Kiriawasegoya 2025: open July 1–October 12 · reservation required
- Honzan Hut 2026: open July 3–October 12 · sleeps 50
Campsites
- 御沢野営場
Mount Iboiwa facts
- Elevation
- 1,654 m
- Location
- Aga, Niigata / Nishiaizu, Fukushima / Kitakata, Fukushima
37.813797, 139.730279 - National Park
- 磐梯朝日国立公園