3D view drawn from Copernicus WorldDEM-30 (© DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA) and Sentinel-2 cloudless 2016 by EOX IT Services GmbH, CC BY 4.0
Mountain in Vietnam
Fansipan is a mountain in the Hoàng Liên Sơn mountain range (Vietnam). Its summit stands 3,147 m above sea level. It is the highest point of VN. Its prominence — how far it rises above the highest saddle linking it to a taller summit — is 1,613 m.
From the lowest point within 5 km (1,251 m), it rises 1,896 m. The steepest side is the west face: 36° on average over the first kilometre. In places the ground near the top reaches 54° — terrain for climbers, not walkers.
The nearest town is Sa Pa, 8 km away at 1,500 m: 1,647 m below the summit.
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
6.4/10
Difficulty to the top
Mountain walk
Most path sections around the top are T4 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, occasional snow in January. Month by month below, at different heights on the way up.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Summit3,147 moccasional snow in January | Snow some of the time | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow | No snow |
Halfway up2,324 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 |
Sa Pa1,500 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 June afternoon the summit reaches about 18 °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 June the 0 °C line climbs to about 6,820 m, above the summit: the top thaws on an average afternoon. Across the region, February is the driest month (23 mm) and August the wettest (330 mm).
| Month | Summit high °C | Summit low °C | Sa Pa high °C | 0 °C line (m) | Rain & snow (mm) | Wet days | Sun h/day |
|---|---|---|---|---|---|---|---|
| January | 7 | -4 | 15 | 4,480 | 41 | 6 | 3.2 |
| February | 10 | -2 | 18 | 5,160 | 23 | 6 | 4.6 |
| March | 14 | 1 | 22 | 5,880 | 53 | 9 | 4.6 |
| April | 17 | 5 | 25 | 6,480 | 110 | 15 | 5.5 |
| May | 18 | 8 | 26 | 6,780 | 173 | 20 | 5.4 |
| June | 18 | 10 | 27 | 6,820 | 214 | 23 | 3.6 |
| July | 18 | 10 | 26 | 6,720 | 287 | 25 | 3.7 |
| August | 18 | 9 | 26 | 6,680 | 330 | 24 | 4.4 |
| September | 16 | 8 | 25 | 6,460 | 190 | 19 | 4.6 |
| October | 14 | 5 | 22 | 5,900 | 96 | 14 | 3.6 |
| November | 11 | 1 | 19 | 5,300 | 50 | 8 | 4.8 |
| December | 7 | -4 | 15 | 4,520 | 33 | 5 | 3.5 |
Estimate: the NASA POWER climate of a ~55 km cell (average height 936 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. True scale: no vertical exaggeration.
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.
A lift reaches Fansipan at 3,032 m — just 115 m below the summit.
Trạm nghỉ chân Phan Xi Păng and 4 more
Cáp treo Fansipan, Tàu hoả leo núi, Tàu hỏa leo núi Mường Hoa and 10 more
Sin Chai
View Point, altitute 2143m, Trạm Tôn, Waterfall, Heaven's Gate and 39 more
Glamper Sapa Campground, Phansi
North Star Hotel, Cha Pa Garden, Sapa Horizon Hotel, Bamboo Sapa Hotel and 202 more
4 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).
Photos
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 | 7 | 10 | 14 | 17 | 18 | 18 | 18 | 18 | 16 | 14 | 11 | 7 |
| 2020 | +2.7 | −0.5 | +1.0 | −3.2 | +1.2 | +0.3 | ±0.0 | −0.3 | +0.3 | −1.2 | +0.6 | −0.8 |
| 2021 | −1.4 | +0.5 | +1.0 | −0.5 | +0.7 | −0.3 | ±0.0 | +0.6 | +0.6 | −1.3 | −1.3 | −0.2 |
| 2022 | +1.0 | −3.9 | +1.6 | −1.6 | −2.6 | −1.3 | +0.7 | +0.3 | −0.2 | −0.1 | +3.1 | −1.7 |
| 2023 | −0.1 | +0.6 | −0.2 | +1.3 | +1.3 | +0.2 | +1.1 | +0.5 | +0.9 | +0.8 | +1.4 | +1.9 |
| 2024 | +0.9 | +1.4 | +0.7 | +3.7 | −0.2 | −0.3 | +0.9 | +0.5 | +0.8 | +1.0 | +0.7 | −0.2 |
| 2025 | −0.4 | −1.3 | −0.8 | +0.2 | −0.1 | −0.2 | +0.4 | −0.2 | −0.1 | +0.4 | −1.4 | +1.5 |
+1 warmer than usual −1 cooler than usual
Nearby
| Names, elevation, prominence | Wikidata (Q123782) · 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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