Chi-Hung Lin · CC BY-SA 2.0 · Wikimedia Commons
Highest mountain in Taiwan
Yushan Main Peak is a mountain in the Yushan Range (Taiwan). Its summit stands 3,952 m above sea level. It is the highest point of TW. Its prominence — how far it rises above the highest saddle linking it to a taller summit — is 3,952 m, and the nearest higher ground is 1,815 km away. It was first climbed in 1896.
From the lowest point within 5 km (1,921 m), it rises 2,031 m. The steepest side is the north-west face: 40° on average over the first kilometre. In places the ground near the top reaches 56° — terrain for climbers, not walkers.
Scores
Two scores out of 10, built only from open data — every part is shown. They describe what the mountain offers, not how safe it is.
Hiking & mountaineering
8.5/10
Difficulty to the top
Mountain walk
Most path sections around the top are T3 on the SAC hiking scale.
Indicative only — never a safety assessment. Conditions change: ask local guides and check the forecast.
Ski score
—
No ski runs within 12 km in OpenStreetMap.
Ski (where OpenStreetMap has skiing within 12 km): up to 4 points for the length of downhill runs (300 km or more = 4), 1.5 for the number of lifts (40+), 1.5 for the vertical between lift stations (1,500 m) and 3 for the snow season — a month counts when the estimated mean temperature at the height of the ski area is −1 °C or lower and snow falls or lies there (NASA POWER, 2001–2020). Hiking & mountaineering: up to 2.5 for waymarked routes and paths, 1.5 for huts, 2 for the ascent from the valley (2,000 m), 1.5 for prominence (3,000 m), 1.5 for the season (months with summit afternoons above −5 °C) and 1 for via ferratas, climbing and glaciers. OpenStreetMap is built by volunteers: where few things are mapped, a score can be lower than reality.
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Snow
At the summit, snow from December to March. Month by month below, at different heights on the way up.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Summit3,952 msnow from December to March | Snow on the ground all month | Snow on the ground all month | Snow on the ground all month | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | Snow on the ground all month |
Halfway up2,936 mno snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow |
Foot of the mountain1,921 mno snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow |
Estimate for a normal year: average temperature and precipitation from NASA POWER, carried to each height, in a simple model of snow building up and melting. In a given year snow can come earlier or stay longer. It does not replace the local snow and avalanche bulletin.
Summit weather
Not a forecast: long-term averages (1991–2020), carried up to the summit. The orange line is where an average afternoon reaches 0 °C; above the dashed blue line it freezes even at dawn.
On an average July afternoon the summit reaches about 12 °C; on January nights it falls to about -4 °C. Afternoons at the top are above freezing in every month of the average year. In July the 0 °C line climbs to about 6,390 m, above the summit: the top thaws on an average afternoon. Across the region, December is the driest month (53 mm) and August the wettest (337 mm).
| Month | Summit high °C | Summit low °C | 0 °C line (m) | Rain & snow (mm) | Wet days | Sun h/day |
|---|---|---|---|---|---|---|
| January | 2 | -4 | 4,410 | 64 | 14 | 1.9 |
| February | 4 | -4 | 4,750 | 58 | 14 | 2.1 |
| March | 6 | -2 | 5,210 | 79 | 16 | 2.0 |
| April | 9 | 1 | 5,790 | 97 | 16 | 2.5 |
| May | 11 | 4 | 6,170 | 229 | 21 | 3.9 |
| June | 12 | 5 | 6,330 | 269 | 21 | 5.9 |
| July | 12 | 6 | 6,390 | 236 | 22 | 7.8 |
| August | 11 | 6 | 6,230 | 337 | 24 | 6.4 |
| September | 10 | 5 | 6,010 | 266 | 20 | 5.4 |
| October | 8 | 2 | 5,610 | 105 | 13 | 4.5 |
| November | 6 | 0 | 5,150 | 83 | 13 | 2.9 |
| December | 3 | -3 | 4,550 | 53 | 12 | 2.2 |
Estimate: the NASA POWER climate of a ~55 km cell (average height 1,032 m), adjusted to the summit by −6.5 °C per 1,000 m. Rain, wet days and sunshine are those of the region. Mountain weather changes fast — always check a local forecast. ★ = mildest months at the top.
Relief
Two cuts through the summit, 16 km long, from the 30 m Copernicus elevation model. Heights drawn 2× taller than lengths, so the shape can be seen.
Average slope of the first kilometre from the summit. The orange petal is the steepest side.
Around the mountain
Counted around the summit in OpenStreetMap, the map anyone can edit. The satellite plate shows 14 × 14 km.
N
5 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 14 × 14 km, north up. Points © OpenStreetMap contributors.
觀高山屋 (2,588 m), 巴奈伊克營地, 排雲山莊 (3,402 m), 塔芬谷山屋 (2,605 m) and 2 more
八通關古道, 玉山東峰步道, 玉山步道, 麟趾山登山步道 and 8 more
夫妻樹, 麟趾山景觀平台, 觀景台, 八通關西峰展望 and 2 more
小營地, 杜鵑營地, 荖濃溪營地, 觀高營地 and 3 more
東埔山莊, 鹿林山莊, 蟬說雅築
18 path sections within 5 km, by SAC hiking scale (T1 easy walk … T6 difficult alpine).
OpenStreetMap is built by volunteers: a low number may just mean nobody has mapped it yet. Places © OpenStreetMap contributors (ODbL).
Recent years
Afternoon high at the summit (estimate). The first row is the reference, the 1991–2020 average in °C; the years show only the difference.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991–2020 average | 2 | 4 | 6 | 9 | 11 | 12 | 12 | 11 | 10 | 8 | 6 | 3 |
| 2020 | +2.0 | +0.8 | +2.1 | −1.3 | +1.3 | +1.3 | +1.0 | +0.2 | +0.5 | +0.2 | +0.6 | +0.8 |
| 2021 | −0.2 | +1.2 | +2.4 | +0.7 | +4.4 | +0.8 | +0.4 | +0.1 | +1.2 | +0.2 | +0.2 | −0.2 |
| 2022 | +0.7 | −0.6 | +1.3 | −0.3 | −1.1 | +0.6 | +2.0 | +1.1 | +2.1 | +0.9 | +2.6 | +0.6 |
| 2023 | +1.3 | +1.5 | +1.7 | +1.6 | +1.0 | +1.0 | +1.4 | +1.4 | +0.8 | +1.0 | +1.2 | +2.3 |
| 2024 | +1.5 | +3.3 | +2.3 | +4.2 | +0.8 | +1.9 | +2.2 | +1.4 | +1.6 | +1.1 | +0.5 | +0.2 |
| 2025 | −0.5 | −1.0 | +0.7 | +0.4 | +0.4 | +0.2 | −0.4 | ±0.0 | +0.6 | +1.4 | +0.2 | +0.8 |
+1 warmer than usual −1 cooler than usual
Nearby
| Names, elevation, prominence | Wikidata (Q500275) · CC0 |
|---|---|
| Relief, 3D view, profiles | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Climate | NASA POWER, 1991–2020 · CC BY 4.0 |
| Around the mountain | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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