Monte San Valentín

Mountain Highest peak in Chilean Patagonia, glaciated mountain

Monte San Valentín dominates Chile’s Northern Patagonian Ice Field and attracts mountaineers for glacier travel and remote alpine ascents. The peak and surrounding ice demand technical experience and expedition planning.

Monte San Valentín is the highest mountain of the Northern Patagonian Ice Field in Chile’s Aysén Region, with an elevation of about 4,058 metres. It is a heavily glaciated peak and a major landmark in northern Patagonia.

Climbing or visiting the mountain involves long approaches across ice and crevassed terrain; ascents require glacier travel skills, route planning and self-sufficient logistics. The peak’s large ice caps and steep flanks make it a significant objective for experienced alpinists.

The mountain has been a geographic reference point for the surrounding ice field and features prominently on maps of Chilean Patagonia.

Monte San Valentín rises within the remote interior of Aysén, inland from the Pacific coast and surrounded by the vast glacial plateau of the Northern Patagonian Ice Field; the nearest settlements are small towns and outposts in the Aysén Region.

  • Highest peak of the ice field: The mountain is heavily glaciated and reaches roughly 4,058 metres, making it the highest summit of the Northern Patagonian Ice Field.
  • Technical difficulty: Approaches are long and glacial travel is required; climbs are remote and typically attempted only by experienced mountaineers.
Monte San Valentín
-46.5950, -73.3458

How to Get to Monte San Valentín #

Reaching Monte San Valentín requires a staged approach from towns in Aysén Region. Most expeditions assemble in Coyhaique (about 2-4 days by road from points north/south) or Puerto Río Tranquilo on the western side of the Northern Patagonian Ice Field. From those hubs, teams travel by 4x4 or boat to fjord or lake drop points, then proceed on skis or crampons across glaciers. Arrange transport, guides, and permits well in advance; the mountain is in remote terrain with no nearby emergency services.

Tips for Visiting Monte San Valentín #

  • Arrange transport with a local guiding company in Coyhaique or Puerto Río Tranquilo-the peak sits in the Northern Patagonian Ice Field and approaches are glacierized and remote.
  • Aim for late January to early March for the best window of stable weather and longer daylight; even then, parties often wait out storms for several days.
  • Use the Río Ibáñez or Lago General Carrera landings as access points; most routes require boat drops and multi-day glacier travel-don't attempt without crevasse-rescue skills and radios.
  • Beware of rapidly changing weather and objective hazards; carry a satellite communicator and file an itinerary with CONAF or local authorities.

Best Time to Visit Monte San Valentín #

The climbing season follows the Southern Hemisphere summer; expect only a narrow window of reasonable weather and long, committed approaches.

Austral summer
December-March · 0°C to 8°C (on lower approaches)
Longest daylight, the most reliable window for mountaineering and glacier travel; still cold and storm-prone at altitude.
Late spring/early autumn
November; April · -5°C to 5°C
Shorter windows and more unpredictable storms; routes may still be snowbound and technical.

Weather & Climate near Monte San Valentín #

Climate

Monte San Valentín's climate is classified as Ice Cap - Ice Cap climate with freezing summers (peaking in January) and freezing winters (coldest in July). Temperatures range from -18°C to -3°C. Abundant rainfall (1287 mm/year), wettest in March.

Temperature & Rainfall
Temperature Range
-3°
Warmest Month
-18°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -3°C and lows of -10°C. Regular rainfall (82 mm) and windy conditions.

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-10° -3°

Weather

82 mm
Rainfall
16.5 m/s
Wind
Windy

February

February is freezing with highs of -3°C and lows of -10°C. Significant rainfall (116 mm) and windy conditions.

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-10° -3°

Weather

116 mm
Rainfall
14.5 m/s
Wind
Windy

March

March is freezing with highs of -4°C and lows of -12°C. The wettest month with heavy rain (144 mm) and windy conditions.

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-12° -4°

Weather

144 mm
Rainfall
15.8 m/s
Wind
Windy

April

April is freezing with highs of -6°C and lows of -14°C. Significant rainfall (128 mm) and windy conditions.

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-14° -6°

Weather

128 mm
Rainfall
17.6 m/s
Wind
Windy

May

May is freezing with highs of -9°C and lows of -16°C. Regular rainfall (94 mm) and windy conditions.

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-16° -9°

Weather

94 mm
Rainfall
19.9 m/s
Wind
Windy

June

June is freezing with highs of -12°C and lows of -17°C. Significant rainfall (114 mm) and windy conditions.

Comfort

-14°
Feels Like Freezing
-14°C
Temperature
-17° -12°

Weather

114 mm
Rainfall
20.7 m/s
Wind
Windy

July

July is the coldest month with highs of -11°C and lows of -18°C. Significant rainfall (121 mm) and windy conditions.

Comfort

-15°
Feels Like Freezing
-15°C
Temperature
-18° -11°

Weather

121 mm
Rainfall
19.8 m/s
Wind
Windy

August

August is freezing with highs of -11°C and lows of -17°C. Significant rainfall (111 mm) and windy conditions.

Comfort

-14°
Feels Like Freezing
-14°C
Temperature
-17° -11°

Weather

111 mm
Rainfall
17.3 m/s
Wind
Windy

September

September is freezing with highs of -9°C and lows of -16°C. Regular rainfall (85 mm) and windy conditions.

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-16° -9°

Weather

85 mm
Rainfall
16.0 m/s
Wind
Windy

October

October is freezing with highs of -6°C and lows of -15°C. Regular rainfall (88 mm) and windy conditions.

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-15° -6°

Weather

88 mm
Rainfall
15.7 m/s
Wind
Windy

November

November is freezing with highs of -5°C and lows of -13°C. Significant rainfall (106 mm) and windy conditions.

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-13° -5°

Weather

106 mm
Rainfall
15.4 m/s
Wind
Windy

December

December is freezing with highs of -4°C and lows of -11°C. Regular rainfall (98 mm) and windy conditions.

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-11° -4°

Weather

98 mm
Rainfall
16.7 m/s
Wind
Windy

Nearby Attractions to Monte San Valentín