Volcano·Peru

Chachani

6,057m

Cordillera Volcanic

Alexandre Buisse ( Nattfodd ) · CC BY-SA 3.0 · Wikimedia Commons

Elevation: 6,057m
Prominence: 1,963m
Relief: 2,069mabove the lowest point within 5 km
Steepest slope: 47°within 1 km of the summit
Snow at the summit: Jan–AugSee month by month ↓
First ascent: 1901
Summit: 16.1950°S, 71.5319°W

Volcano in Peru

Chachani is a volcano in the Cordillera Volcanic (Peru). Its summit stands 6,057 m above sea level. Its prominence — how far it rises above the highest saddle linking it to a taller summit — is 1,963 m. It was first climbed in 1901.

From the lowest point within 5 km (3,988 m), it rises 2,069 m. The steepest side is the south-east face: 36° on average over the first kilometre. In places the ground near the top reaches 47° — terrain for climbers, not walkers.

The nearest town is Cono Norte, 15 km away at 2,705 m: 3,352 m below the summit.

Chachani for skiers and climbers

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

5.4/10

Difficulty to the top

Mountain walk

Most path sections around the top are T3 on the SAC hiking scale. Glaciers around the top.

Indicative only — never a safety assessment. Conditions change: ask local guides and check the forecast.

0.1/2.50 waymarked routes and 2 path sections nearby
0.0/1.50 huts and shelters
2.0/23,352 m of ascent from the valley
1.4/1.51,963 m of prominence
1.5/1.512 months with summit afternoons above −5 °C
0.3/1via ferratas, climbing and glaciers

Ski score

—

No ski runs within 12 km in OpenStreetMap.

How these scores are made

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.

Plan your visit

Stay, climb and get there

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Snow

When there is snow on Chachani

At the summit, snow from January to August (some years all year). Month by month below, at different heights on the way up.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Summit6,057 msnow from January to August (some years all year)	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow some of the time	Snow some of the time	Snow some of the time	Snow some of the time
Halfway up4,381 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
Cono Norte2,705 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

Snow on the ground all month
Snow some of the time
No snow
This month

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

Chachani, month by month

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 November afternoon the summit reaches about 4 °C; on July nights it falls to about -16 °C. In 1 months of the year it stays below freezing at the top even in the afternoon. In November the 0 °C line climbs to about 6,660 m, above the summit: the top thaws on an average afternoon. Across the region, June is the driest month (1 mm) and February the wettest (59 mm).

0 °C on an average afternoon 0 °C at dawn the summit

Month	Summit high °C	Summit low °C	Cono Norte high °C	0 °C line (m)	Rain & snow (mm)	Wet days	Sun h/day
January	2	-12	24	6,420	46	12	8.0
February	2	-12	24	6,370	59	11	7.7
March	2	-12	24	6,420	33	8	8.3
April	2	-13	24	6,370	10	3	9.4
May	1	-15	22	6,160	4	0	11.1
June	0	-16	22	6,060	1	0	11.1
July	0	-16	21	6,000	2	0	11.1
August	1	-16	23	6,200	2	0	11.4
September	2	-15	24	6,390	6	1	10.8
October	3	-14	25	6,540	14	3	10.8
November	4	-13	26	6,660	7	2	10.9
December	3	-12	25	6,520	27	6	9.2

Estimate: the NASA POWER climate of a ~55 km cell (average height 4,232 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

The mountain in profile

Two cuts through the summit, 16 km long, from the 30 m Copernicus elevation model. True scale: no vertical exaggeration.

West – east

South – north

Steepness by direction

Average slope of the first kilometre from the summit. The orange petal is the steepest side.

Around the mountain

Huts, lifts and trails around Chachani

Counted around the summit in OpenStreetMap, the map anyone can edit. The satellite plate shows 14 × 14 km.

N 5 km

Other summitsCampsites

Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 14 × 14 km, north up. Points © OpenStreetMap contributors.

—mountain huts and shelters
—cable cars, gondolas, chairlifts and rack railways
—ski areas
—waymarked hiking routes
—via ferratas
—climbing crags and routes
—named glaciers
—viewpoints
2campsites
Acampamiento base de Chachani, campamento base
—hotels, B&Bs and chalets
—restaurants and cafés

Towns at the foot

Cono Norte15 km · 2,705 m
Cono Norte15 km · 2,593 m
Yura17 km · 2,598 m
Selva Alegre20 km · 2,455 m
La Libertad21 km · 2,393 m
Cayma21 km · 2,381 m
Yanahuara21 km · 2,371 m
Miraflores23 km · 2,403 m

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OpenStreetMap is built by volunteers: a low number may just mean nobody has mapped it yet. Places © OpenStreetMap contributors (ODbL).

Photos

Seen by climbers and visitors

Chachani (6075m) (5619838885) — Bas Wallet from Rhenen, Netherlands · CC BY 2.0

Mount Chachani, Arequipa, Peru 001 — Haylli · CC BY-SA 4.0

Recent years

How each month compared at the summit

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	2	2	2	1	0	0	1	2	3	4	3
2020	−0.2	−0.5	−0.4	−0.3	−0.3	+0.1	+0.5	+0.8	+0.8	+0.6	+1.1	−0.2
2021	−0.4	+0.9	−1.0	−0.1	+0.2	−0.7	+0.8	+0.4	+1.2	+0.6	−0.5	−0.3
2022	−0.6	+0.9	−0.1	+0.3	+0.3	−0.8	+1.5	+0.1	+0.1	+0.4	+0.7	−0.2
2023	+1.0	+0.9	−0.1	+1.2	+0.6	+1.1	+2.0	+0.8	+1.2	+1.6	+0.9	+1.3
2024	+2.8	+1.4	+1.0	+2.0	+1.6	+1.7	+1.8	+0.9	+2.0	+1.3	+0.4	+1.5
2025	+0.3	+0.4	−0.9	−0.7	+0.5	−1.6	±0.0	−0.9	−0.2	−0.6	−0.1	+0.2

+1 warmer than usual −1 cooler than usual

Nearby

More mountains nearby

About these numbers

Names, elevation, prominence	Wikidata (Q1058424) · 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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