Sasseneire

Mountain Alpine peak in Valais popular with climbers

Rising above Val d’Anniviers in Valais, Sasseneire is a popular alpine summit for hikers and ski tourers; routes include grassy ridges, rock scrambles and panoramic views of surrounding 4,000‑metre peaks.

Main image

Sasseneire is a mountain in the Valais canton of Switzerland, in the Pennine Alps, rising to an elevation around 3,250 metres. It is a recognized summit for hikers and mountaineers in the Anniviers valley.

Routes to the summit run from valley villages such as Ayer and offer ridge walking and alpine terrain typical of the region, with panoramic views over neighbouring peaks and glaciers.

The mountain has been part of local alpine recreation since the development of mountaineering in the region and is a marked feature on regional hiking and climbing maps.

Sasseneire stands within the Valais Alps above the Anniviers valley and is accessed from mountain huts and valley trailheads in the district.

  • Access and conditions: The summit is commonly reached from the village of Ayer and offers panoramic views across the Valais Alps; climbs are non-technical in summer but require alpine experience and proper equipment in snowy conditions.
Sasseneire
46.1387, 7.5251
Free (mountain access); mountain huts or guides extra

How to Get to Sasseneire #

Access is most commonly from the Val d’Anniviers. Train to Sierre, then PostBus toward Grimentz (approx. 45-60 minutes). From Grimentz or Ayer follow marked alpine trails and local waymarks toward the Moiry / Sasseneire routes; alpine huts and trailheads are signposted in the valley. For technical climbs, consult local guides in Grimentz or Zinal.

Tips for Visiting Sasseneire #

  • Start from Grimentz or Ayer in Val d'Anniviers-local trail signs and alpine huts make the approach manageable.
  • Check conditions at the Cabane de Moiry or Zinal tourist office-snow can persist into July on north aspects.
  • Consider the south ridge for a non‑technical ascent in summer; crampons and rope recommended for residual snow.

Best Time to Visit Sasseneire #

Climbable in summer by hikers and scramblers; winter travel demands mountaineering experience.

Summer
June-September · 5°C to 15°C (alpine conditions)
Trail access is clearest, alpine huts open; wildflowers and stable weather make for the classic ascent window.
Late spring
May-June · -5°C to 5°C
Snow can linger; approaches are harder and require winter equipment and avalanche awareness.
Autumn
September-October · -5°C to 10°C
Shorter days and the first snows-excellent for solitude but watch for rapidly changing weather.

Weather & Climate near Sasseneire #

Climate

Sasseneire's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -12°C to 9°C. Moderate rainfall (661 mm/year), distributed fairly evenly throughout the year.

Best Time to Visit
AugustJulyJune
Temperature & Rainfall
Temperature Range
23°
Warmest Month
-29°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -6°C and lows of -12°C. Moderate rainfall (61 mm), mostly overcast skies, and breezy conditions.

29 Poor

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-12° -7°
84%
Humidity
Very Humid

Weather

61 mm
Rainfall
6.5 m/s
Wind
Breezy
0.1
UV Index
Low
8.9h daylight

February

February is the coldest month with highs of -7°C and lows of -12°C. Moderate rainfall (57 mm), mostly overcast skies, and breezy conditions.

31 Poor

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-12° -7°
84%
Humidity
Very Humid

Weather

57 mm
Rainfall
6.3 m/s
Wind
Breezy
0.3
UV Index
Low
10.2h daylight

March

March is freezing with highs of -7°C and lows of -12°C. The wettest month with 63 mm of rain, partly cloudy skies, and breezy conditions.

33 Poor

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-12° -7°
87%
Humidity
Very Humid

Weather

63 mm
Rainfall
6.4 m/s
Wind
Breezy
0.6
UV Index
Moderate
11.8h daylight

April

April is freezing with highs of -5°C and lows of -10°C. Moderate rainfall (56 mm) and partly cloudy skies.

37 Poor

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-11° -5°
83%
Humidity
Very Humid

Weather

56 mm
Rainfall
5.9 m/s
Wind
Light Breeze
1.0
UV Index
High
13.4h daylight

May

May is freezing with highs of 0°C and lows of -6°C. Moderate rainfall (57 mm) and mostly overcast skies.

37 Poor

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-6°
78%
Humidity
Very Humid

Weather

57 mm
Rainfall
5.5 m/s
Wind
Light Breeze
1.4
UV Index
High
14.8h daylight

June

June is cold with highs of 4°C and lows of -2°C. Moderate rainfall (50 mm) and partly cloudy skies.

50 Acceptable

Comfort

Feels Like Cold
C
Temperature
-2°
75%
Humidity
Very Humid

Weather

50 mm
Rainfall
5.3 m/s
Wind
Light Breeze
1.7
UV Index
Very High
15.6h daylight

July

July is cold with highs of 8°C and lows of 2°C. Moderate rainfall (49 mm) and partly cloudy skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
75%
Humidity
Very Humid

Weather

49 mm
Rainfall
5.2 m/s
Wind
Light Breeze
1.8
UV Index
Very High
15.2h daylight

August

August is cold with highs of 9°C and lows of 3°C. Moderate rainfall (53 mm) and partly cloudy skies.

60 Good

Comfort

Feels Like Cold
C
Temperature
75%
Humidity
Very Humid

Weather

53 mm
Rainfall
4.8 m/s
Wind
Light Breeze
1.5
UV Index
High
14.0h daylight

September

September is cold with highs of 6°C and lows of 0°C. Moderate rainfall (48 mm) and partly cloudy skies.

50 Acceptable

Comfort

Feels Like Cold
C
Temperature
78%
Humidity
Very Humid

Weather

48 mm
Rainfall
5.4 m/s
Wind
Light Breeze
1.0
UV Index
Moderate
12.4h daylight

October

October is freezing with highs of 2°C and lows of -3°C. Moderate rainfall (48 mm) and partly cloudy skies.

42 Poor

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-3°
80%
Humidity
Very Humid

Weather

48 mm
Rainfall
5.7 m/s
Wind
Light Breeze
0.5
UV Index
Moderate
10.7h daylight

November

November is freezing with highs of -2°C and lows of -8°C. The wettest month with 63 mm of rain, mostly overcast skies, and breezy conditions.

33 Poor

Comfort

-5°
Feels Like Freezing
-5°C
Temperature
-8° -3°
85%
Humidity
Very Humid

Weather

63 mm
Rainfall
6.4 m/s
Wind
Breezy
0.2
UV Index
Low
9.3h daylight

December

December is freezing with highs of -5°C and lows of -10°C. Moderate rainfall (56 mm), mostly overcast skies, and breezy conditions.

31 Poor

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-10° -5°
83%
Humidity
Very Humid

Weather

56 mm
Rainfall
6.6 m/s
Wind
Breezy
0.1
UV Index
Low
8.5h daylight

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