Dammastock

Mountain Highest peak of Canton Uri, Alpine massif summit

Dammastock crowns the Uri Alps above the Damma Glacier; mountaineers and hikers come for glacier routes, alpine ridge walks and high mountain panoramas in Canton Uri.

Main image

Dammastock is the highest mountain of the Urner Alps in Switzerland, rising to an elevation of about 3,630 metres. It is a prominent alpine summit above the upper Rhone valley and is notable for its glaciated flanks.

The massif features permanent ice and snow fields and is commonly approached by mountaineers via glacier routes from the valleys below. The mountain sits on a high ridge and forms a watershed between neighbouring valleys.

The massif and its glaciers have been the subject of climbing and alpine study for over a century, and access is typically seasonal with summer the main climbing period. Mountain huts and established routes are used by parties ascending the peak.

Dammastock is located in the Swiss Alps within the Canton of Uri, near the boundary with Valais, and overlooks the headwaters of the Rhone and the surrounding high alpine terrain.

  • Elevation: At roughly 3,630 metres the peak is the highest point of the Urner Alps and is commonly climbed from glacier routes during the summer mountaineering season.

What to See #

  • Glaciers: The Rhone Glacier and other peripheral glaciers lie on the mountain's flanks and serve as the source area for streams feeding the upper Rhone valley.
Dammastock
46.6435, 8.4211

Best Time to Visit Dammastock #

Go in summer (June-August) for the most accessible conditions for hiking and glacier travel, while remembering summit conditions remain cold and changeable.

Summer (best time for hiking)
June-August · ~-5 to +5 °C at the summit (warmer in valleys)
Summer brings the most reliable window for glacier and high‑alpine hiking-longer daylight and reduced avalanche risk, but weather can change quickly and summit temperatures remain low.
Shoulder seasons (shorter, variable access)
May & September-October · summit often around -10 to 0 °C
Late spring and early autumn can offer quieter trails but more snow/ice at higher elevations and less predictable weather; some routes or huts may have limited services.

Weather & Climate near Dammastock #

Climate

Dammastock's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -15°C to 2°C. Moderate rainfall (820 mm/year), distributed fairly evenly throughout the year.

Best Time to Visit
AugustOctoberSeptember
Temperature & Rainfall
Temperature Range
26°
Warmest Month
-29°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -10°C and lows of -14°C. Moderate rainfall (75 mm), partly cloudy skies, and breezy conditions.

29 Poor

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-14° -10°
87%
Humidity
Very Humid

Weather

75 mm
Rainfall
9.3 m/s
Wind
Breezy
0.2
UV Index
Low
8.9h daylight

February

February is the coldest month with highs of -10°C and lows of -15°C. Moderate rainfall (67 mm), partly cloudy skies, and breezy conditions.

33 Poor

Comfort

-13°
Feels Like Freezing
-13°C
Temperature
-15° -11°
87%
Humidity
Very Humid

Weather

67 mm
Rainfall
8.3 m/s
Wind
Breezy
0.3
UV Index
Low
10.2h daylight

March

March is freezing with highs of -10°C and lows of -14°C. The wettest month with 79 mm of rain, partly cloudy skies, and breezy conditions.

31 Poor

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-15° -10°
87%
Humidity
Very Humid

Weather

79 mm
Rainfall
8.2 m/s
Wind
Breezy
0.7
UV Index
Moderate
11.8h daylight

April

April is freezing with highs of -9°C and lows of -13°C. Moderate rainfall (64 mm), mostly overcast skies, and breezy conditions.

29 Poor

Comfort

-11°
Feels Like Freezing
-11°C
Temperature
-13° -9°
84%
Humidity
Very Humid

Weather

64 mm
Rainfall
7.3 m/s
Wind
Breezy
1.0
UV Index
High
13.4h daylight

May

May is freezing with highs of -5°C and lows of -8°C. Moderate rainfall (55 mm), mostly overcast skies, and breezy conditions.

31 Poor

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-8° -5°
81%
Humidity
Very Humid

Weather

55 mm
Rainfall
6.6 m/s
Wind
Breezy
1.3
UV Index
High
14.8h daylight

June

June is freezing with highs of -2°C and lows of -5°C. Moderate rainfall (67 mm), mostly overcast skies, and breezy conditions.

33 Poor

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-5° -2°
78%
Humidity
Very Humid

Weather

67 mm
Rainfall
6.2 m/s
Wind
Breezy
1.7
UV Index
Very High
15.6h daylight

July

July is freezing with highs of 1°C and lows of -2°C. The wettest month with 79 mm of rain, partly cloudy skies, and breezy conditions.

36 Poor

Comfort

Feels Like Freezing
C
Temperature
-2°
77%
Humidity
Very Humid

Weather

79 mm
Rainfall
6.1 m/s
Wind
Breezy
1.7
UV Index
Very High
15.2h daylight

August

August is cold with highs of 2°C and lows of 0°C. Moderate rainfall (77 mm) and partly cloudy skies.

46 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
79%
Humidity
Very Humid

Weather

77 mm
Rainfall
5.6 m/s
Wind
Light Breeze
1.4
UV Index
High
14.0h daylight

September

September is freezing with highs of 0°C and lows of -3°C. Moderate rainfall (67 mm), partly cloudy skies, and breezy conditions.

38 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-3° -1°
81%
Humidity
Very Humid

Weather

67 mm
Rainfall
6.5 m/s
Wind
Breezy
1.0
UV Index
Moderate
12.4h daylight

October

October is freezing with highs of -3°C and lows of -6°C. Moderate rainfall (53 mm), partly cloudy skies, and breezy conditions.

39 Poor

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-6° -3°
83%
Humidity
Very Humid

Weather

53 mm
Rainfall
7.6 m/s
Wind
Breezy
0.5
UV Index
Low
10.7h daylight

November

November is freezing with highs of -7°C and lows of -10°C. Moderate rainfall (69 mm), partly cloudy skies, and breezy conditions.

33 Poor

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-11° -7°
87%
Humidity
Very Humid

Weather

69 mm
Rainfall
8.5 m/s
Wind
Breezy
0.2
UV Index
Low
9.3h daylight

December

December is freezing with highs of -8°C and lows of -13°C. Moderate rainfall (68 mm), partly cloudy skies, and breezy conditions.

31 Poor

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-13° -8°
85%
Humidity
Very Humid

Weather

68 mm
Rainfall
9.1 m/s
Wind
Breezy
0.1
UV Index
Low
8.5h daylight

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