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A mountaineering calendar of the world’s greatest mountains and the optimal time of year at which to climb them, listed month by month
Since I first started climbing, I must have spent hours typing “when is the best time to climb…” into search engines and then crawling through websites to find the key piece of information I needed. Only when I have a date in mind can I start to think about the practicalities of actually trying to climb a mountain (i.e. booking time off work, flights, budget, gear etc).
To solve this problem once and for all, we have put together a mountaineering calendar of the world’s greatest mountains and the optimal time of year at which to climb them. Drawing on Adventure Consultants’ expedition calendar, we list the world’s major mountains and ranges month by month.
The list on our mountaineering calendar is not entirely inclusive as it would take too long to record every mountain on the planet. Likewise, to avoid repetition we list select mountains in a range, considering the world’s 100 highest mountains lie within the Himalaya and Karakoram ranges.
We have also excluded winter ascents from the list because, well, if you’re that guy, you probably don’t need a mountaineering calendar.
Finally, our mountaineering calendar is an evolving project so please send us any suggestions and we’ll continue to add mountains and ranges over time.
JANUARY
| 1 | Aconcagua, Argentina | Seven summits. Highest non-technical mountain in the world. |
| 1 | Mount Kenya (south-face), Kenya | Seven second summits. Best time to climb south face. |
| 1 | Chimborazo, Cotopaxi and Cayambe, Ecuador | Farthest point from Earth’s core. Dry period with low winds. |
| 1 | Puncak Mandala, Indonesia | Seven second summits. January is dry season in Papua Province. |
| 1 | Mount Tyree, Antarctica | Seven second summits. |
| 6-31 | Vinson Massif, Antarctica | Seven summits. |
| 16-30 | Carstensz Pyramid, Indonesia | Seven summits (Messner list). Can be climbed year-round but January is dry season in Papua Province. |
Dreamstime Mount Whitney is the highest summit in the contiguous United StatesMount Whitney can be climbed anytime during the mountaineering calendar. It is the highest summit in the contiguous United States (i.e. excluding Hawaii and Alaska) as well as the highest peak in the Sierra Nevada.
It looks intimidating at first sight but the popular Mount Whitney Trail starts at an elevation of 2,550m (8,360ft) meaning the summit can be reached in just a day (albeit a challenging one).
Most hikers prefer to ascend between late May and October while mountaineers prefer the months of January and February as they provide an exceptional training ground for those looking to gain experience in winter conditions.
FEBRUARY
| 1 | Antarctic Peninsula voyages, Antarctica | Possible ship-based expeditions to the Antarctic Peninsula. |
| 1 | Kilimanjaro, Tanzania | Seven summits. A popular month to climb due to moderate conditions. |
| 1 | Antisana, Ecuador | Ecuador’s 4th highest and most challenging volcano. Best time to climb. |
| 14 | Mount Cameroon Race of Hope, Cameroon | West Africa’s highest mountain. |
| 26 | North Pole skiing expedition, Arctic | Departs late February (56 days). |
Kilimanjaro is Africa’s highest mountain and one of the seven summits. It is also a year-round trekking mountain. It is most popular in February but July too is an excellent time to visit as the climb can be combined with safari and wildlife spotting.
Antisana offers something different to Ecuador’s three higher and more popular volcanos. It requires some technical skills with a challenging bergschrund near the summit. Although it’s a year-round mountain, February is the driest and least windy month.
MARCH
| 6-20 | Ojos del Salado expedition, Chile / Argentina | Seven second summits. |
| 25 | First Everest expeditions begin, Nepal | Seven summits. Eight-thousanders. Highest mountain in the world. |
| 27 | Everest base camp treks begin, Nepal | Trek to the base of the highest mountain in the world. |
Those who travel to mountain-tops are half in love with themselves, and half in love with oblivion.
– Robert MacfarlaneAPRIL
| 1 | Mount Cook & Southern Alps, New Zealand | New Zealand’s highest mountain. Good time to climb in the Southern Alps. |
| 1 | Canadian Rockies, Canada | Best month for winter mountaineering. |
| 1 | Everest expeditions begin, Nepal | Seven summits. Eight-thousanders. Highest mountain in the world. |
| 1 | Everest / Lhotse combined expeditions begin, Nepal | Seven summits, eight-thousanders. 1st & 4th highest mountains in the world. |
| 1 | First Manaslu expeditions, Nepal | Eight-thousanders. 8th highest mountain in the world. Pre-monsoon expedition. |
| 1 | First Makalu expeditions, Nepal / China | Eight-thousanders. 5th highest mountain in the world. Pre-monsoon expedition. |
| 1 | Kanchenjunga expeditions begin, Nepal / India | Eight-thousanders. 3rd highest mountain in the world. |
| 2 | Attempts on Annapurna I usually begin, Nepal | Eight-thousanders. 10th highest mountain in the world. Arguably most dangerous eight-thousander. |
| 8 | Lhotse expeditions begin, Nepal | Eight-thousanders. 4th highest mountain in the world. |
| 12 | Ama Dablam expeditions begin, Nepal | Exposed technical Alpinism at altitude. |
| 13 | Shishapangma expeditions begin, China | Eight-thousanders. 14th highest mountain in the world. |
| 14 | Greenland crossing, Greenland | Expeditions begin. |
| 15 | Alaska Range, USA | Climbing season begins. |
| 16 | Dhaulagiri expeditions begin, Nepal | Eight-thousanders. 7th highest mountain in the world. |
| 23 | First Mera Peak expedition, Nepal | Nepal’s highest trekking peak. |
| 23 | First Baruntse expedition, Nepal | 7,000m+ non-technical climbing. |
| 26 | First Island Peak expedition, Nepal | Ideal first Himalayan climb. |
Dreamstime The Everest massif has several peaks on our mountaineering calendarThe Everest massif includes Lhotse (centre), the impressive Nuptse ridge (right) and Mount Everest itself (left). Lhotse and Everest can be climbed together as part of a “combo climb”. The routes follow the Khumbu Icefall up to camp four where they part.
Despite how it looks in the photo above, the Nuptse ridge is the lowest peak at 7,861m (25,791ft) while the others are both eight-thousanders and the highest and fourth-highest mountains in the world.
MAY
| 1 | Central-European Alps, Europe | European Alpine season begins. |
| 1 | Mount Toubkal & Atlas Mountains, Morocco | Climbing season begins. |
| 1 | Sierra Nevada, White Mountains & Cascade Range, USA | California fourteeners. California climbing season begins. Mount Whitney is the tallest mountain in contiguous USA. |
| 1 | Colorado ranges, USA | Colorado fourteeners. Colorado climbing season begins. |
| 1 | Mount Rainier & Cascade Range, USA | Climbing season begins. |
| 1-31 | Inca Trail, Peru | Best month for hiking Inca Trail and visiting Machu Picchu. |
| 2-31 | Denali expeditions begin, USA | Seven summits. Colder in early May. |
| 13-25 | Everest summit bids, Nepal | Seven summits. Eight-thousanders. Highest mountain in the world. |
| 14 | Mount Logan expeditions begin, Canada | Seven second summits. |
| 15 | Nanga Parbat attempts usually begin, Pakistan | Eight-thousanders. 9th highest mountain in the world. Never climbed in winter. |
| 16-25 | Lhotse summit bids, Nepal | Eight-thousanders. 4th highest mountain in the world. |
| 21 | Bolivian Alpine season begins, Bolivia | 6,000m peaks of the Andes. |
| 30 | Mount Gunnbjorn, Greenland | Highest mountain in Greenland. |
In 2024, I climbed Denali in late May/early June. The climbing season on Denali starts in late April and continues through the middle of July. Although it’s colder earlier in the season, May and June are considered the best times to climb as they can still offer milder temperatures with fewer crevasses. By late July, the lower glacier is more dangerous due to melting snow bridges over crevasses while planes may not be able to land at base camp.
JUNE
| 1 | Scandinavian Mountains, Norway / Sweden / Finland | Scandinavian mountaineering season begins. |
| 1-15 | Mount Gunnbjorn, Greenland | Highest mountain in Greenland. |
| 1-30 | Denali expeditions, USA | Seven summits. Most successful summits in mid-late June. |
| 1-30 | Bolivia Alpine season, Bolivia | 6,000m peaks of the Andes. |
| 10 | Mount Kenya (north-face), Kenya | Best time to climb north face. Seven second summits. |
| 11 | Gasherbrum I, II & Broad Peak expeditions begin, Pakistan / China | Eight-thousanders. 11th, 12th & 13th highest mountains in the world. Climbing season in the Karakoram begins. |
| 12 | K2 expeditions begin, Pakistan / China | Seven second summits. Eight-thousanders. 2nd highest mountain in the world. Never climbed in winter. |
| 15 | Three-thousanders in Japan, Japan | Climbing season begins in Japan. |
The Gasherbrum group of mountains is located in the Karakoram mountain range of the Himalayas on the Pakistan-China border.
The group includes three of the 14 eight-thousanders, Gasherbrum I, Gasherbrum II and Broad Peak, as well as the unclimbed Gasherbrum VI. Nearby is the imposing K2, the second-highest mountain in the world.
The majority of expeditions on these mountains commence in June with summits taking place in late July / early August.
JULY
| 1 | Mont Blanc and Alpine four-thousanders, France / Switzerland / Italy | Best time to climb in the European Alps. Alpine four-thousanders. |
| 1 | Canadian Rockies, Canada | Climbing (dry) season begins. |
| 1 | Kilimanjaro, Tanzania | Seven summits. Weather is cooler and dry – good time for climbing and wildlife spotting in Tanzania. |
| 1 | Eiger, Switzerland | Great north faces of the Alps. |
| 1 | Matterhorn, Italy / Switzerland | Alpine four-thousanders. Great north faces of the Alps. |
| 1 | Chimborazo, Cotopaxi and Cayambe, Ecuador | Farthest point from the Earth’s core. Driest month although possibility of strong winds. |
| 1 | Bolivia Alpine season, Bolivia | 6,000m peaks of the Andes. |
| 9 | Mount Khuiten and Tavan Bogd range, Mongolia | Remote mountaineering. |
| 11 | Elbrus expeditions begin, Russia | Seven summits. |
| 11 | Dykh-Tau expeditions begin, Russia | Seven second summits. |
| 16-31 | Carstensz Pyramid, Indonesia | Seven summits (Messner list). Can be climbed year-round but July-August is the peak season in Indonesia. |
| 23 | Alpamayo, Artesonraju & Peruvian Andes, Peru | Best time to climb is in late July / early August. |
It’s a round trip. Getting to the summit is optional, getting down is mandatory.
– Ed ViestursAUGUST
| 1 | Mont Blanc and Alpine four-thousanders, France / Switzerland / Italy | Best time to climb in the European Alps. Alpine four-thousanders. |
| 1 | Eiger, Switzerland | Great north faces of the Alps. |
| 1 | Matterhorn, Italy / Switzerland | Alpine four-thousanders. Great north faces of the Alps. |
| 1 | Elbrus expeditions, Russia | Seven summits. |
| 1 | Dykh-Tau expeditions, Russia | Seven second summits. |
| 1 | Bolivia Alpine season ends, Bolivia | 6,000m peaks of the Andes. |
| 15 | Everest autumn summit season, Nepal | Seven summits. Highest mountain in the world. |
| 30 | Cho Oyu expedition begins, Nepal / China | Eight-thousanders. 6th highest mountain in the world. |
Matterhorn
Dreamstime EigerDreamstime
The towering and near-symmetrical pyramidal peak of the Matterhorn is one of Europe’s (and perhaps the world’s) most iconic mountains. The summer months of July and August are without doubt the best time to climb.
The formidable North face of the Eiger has made the mountain world famous, often because of tragic summit attempts. Known as one of Alpine ‘big three’ alongside the Matterhorn and Mont Blanc, the Eiger is also best approached in July and August.
SEPTEMBER
| 1 | Second Manaslu expedition, Nepal | Eight-thousanders. 8th highest mountain in the world. Post-monsoon expedition. |
| 1 | Second Makalu expedition, Nepal / China | Eight-thousanders. 5th highest mountain in the world. |
| 1 | Khan Tengri, Kazakhstan / Kyrgyzstan | Best time to climb in the range. |
| 14 | Himlung & Saribung, Nepal | Late season mountaineering. |
| 15 | Pamir Mountains, Afghanistan / China / Kyrgyzstan / Tajikistan / Uzbekistan | Best time to climb in the range. |
| 24 | Second Mera Peak expedition, Nepal | Nepal’s highest trekking peak. |
| 24 | Second Baruntse expedition, Nepal | 7,000m+ non-technical climbing. |
Eraqusty/Shutterstock The Pamir Mountains of Central AsiaOCTOBER
| 1 | Tian Shan, China, Kazakhstan / Kyrgyzstan / Uzbekistan | Best time to climb in the range. |
| 1 | Meru Peak’s Shark’s Fin | One of the hardest routes in the world. First climbed in October 2011. |
| 15 | Ama Dablam, Nepal | Exposed technical Alpinism at altitude. |
| 21 | Cholatse, Nepal | Exposed technical Alpinism at altitude. |
NOVEMBER
| 1 | Patagonia, Argentina / Chile | Climbing season begins. |
| 1 | Monte Fitz Roy & Cerro Torre, Argentina | Ascents usually begin in November. |
| 1 | Cordillera Paine, Torres del Paine, Chile | Ascents usually begin in November. |
| 1 | Pico de Orizaba and Iztaccihuatl, Mexico | Dry season begins in November through to March. Pico de Orizaba is the highest mountain in Mexico & the third highest in North America. |
| 1 | Mount Cook & Southern Alps, New Zealand | New Zealand’s highest mountain. Southern Alps climbing season begins. |
| 1 | Antarctic Peninsula voyages, Antarctica | Possible ship-based expeditions to the Antarctic Peninsula. |
| 10 | Three Peaks Nepal, Nepal | Three moderate-altitude summits in one expedition. |
| 16 | South Pole skiing expedition, Antarctica | Polar skiing expedition (67 days). |
| 23 | Vinson Massif, Antarctica | Seven summits. |
| 24 | Aconcagua expeditions begin, Argentina | Seven summits. Climbing season in surrounding Andes range begins. |
Dreamstime Cerro Torre in PatagoniaIn a cold and windswept corner of Argentine Patagonia sits Cerro Torre with its terrifying serrated summits. Since it was first (supposedly) climbed in 1959, the mountain has been dogged by controversy thanks to disputed summit claims, questionable climber ethics and the contentious use of bolts.
Patagonia is famous for its tempestuous weather, so even during the summer months of November, December and January, the conditions can be torrid.
DECEMBER
| 1 | Mount Cook & Southern Alps, New Zealand | New Zealand’s highest mountain. Good time to climb in Southern Alps. |
| 1 | Monte Fitz Roy & Cerro Torre, Argentina | Good time to climb. |
| 1 | Cordillera Paine, Torres del Paine, Chile | Good time to climb. |
| 1 | Antisana climbs begin, Ecuador | Ecuador’s 4th highest and most challenging volcano. Ecuadorian Alpine season begins. |
| 1 | Pico de Orizaba, Mexico | Best month to climb. Highest mountain in Mexico & the third highest in North America. |
| 1 | Antarctic Peninsula voyages, Antarctica | Possible ship-based expeditions to the Antarctic Peninsula. |
| 1 | Mount Tyree, Antarctica | Seven second summits. |
| 1 | Aconcagua, Argentina | Seven summits. |
| 4 | Vinson Massif, Antarctica | Seven summits. |
| 15 | Cordillera Central, Colombia | Best time to climb in Colombia. |
Mountains are not fair or unfair, they are just dangerous.
– Reinhold MessnerEnjoyed this post? pin it for later…
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