ChamlangChamlang at a Glance
About Chamlang
Chamlang is a major Himalayan peak in eastern Nepal with an elevation of about 7,319 metres. It is part of the high mountain terrain of the Mahalangur Himalaya and is known to mountaineers for its steep ridges and technical climbing routes.
The peak forms part of complex glaciated terrain and is considered a demanding climb requiring advanced alpine skills. It is less frequented than many of the region’s more famous summits, so expeditions tend to be relatively small and remote.
Chamlang sits in eastern Nepal’s high mountain zone within Koshi Province and is part of the same general mountain system that includes peaks such as Makalu and Everest to the west and northwest of the massif.
- Elevation: Rises to approximately 7,319 metres, making it one of the higher seven-thousanders in the Nepal Himalaya.
Best Time to Visit Chamlang
Climbing Chamlang is seasonal: the principal windows are pre- and post-monsoon when weather and technical conditions are most favorable.
Weather & Climate near Chamlang
Chamlang's climate is classified as Ice Cap - Ice Cap climate with freezing summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -25°C to -1°C. Semi-arid with limited rainfall with a pronounced dry season.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | -25° - -13° | -29° | 23 mm | some cloud | 54% | 4.9 m/s | 1.0 moderate | 10.5h |
| February | Poor | -25° - -13° | -29° | 25 mm | partly cloudy | 59% | 5.4 m/s | 1.3 high | 11.1h |
| March | Poor | -22° - -10° | -26° | 8 mm | partly cloudy | 65% | 6.1 m/s | 1.7 very high | 11.9h |
| April | Poor | -18° - -7° | -21° | 1 mm | partly cloudy | 68% | 5.5 m/s | 2.0 very high | 12.7h |
| May | Poor | -14° - -4° | -18° | 5 mm | overcast | 72% | 7.2 m/s | 2.0 extreme | 13.4h |
| June | Poor | -10° - -2° | -14° | 5 mm | overcast | 77% | 7.9 m/s | 1.9 very high | 13.7h |
| July | Poor | -8° - -1° | -11° | 67 mm | overcast | 83% | 5.9 m/s | 1.9 very high | 13.6h |
| August | Poor | -8° - -1° | -11° | 62 mm | overcast | 85% | 5.2 m/s | 1.9 very high | 13.0h |
| September | Poor | -10° - -3° | -13° | 35 mm | overcast | 82% | 5.4 m/s | 1.7 very high | 12.2h |
| October | Poor | -16° - -6° | -19° | 31 mm | partly cloudy | 65% | 5.7 m/s | 1.6 very high | 11.4h |
| November | Poor | -21° - -10° | -23° | 5 mm | some cloud | 54% | 3.9 m/s | 1.1 high | 10.7h |
| December | Poor | -23° - -11° | -26° | 23 mm | some cloud | 48% | 4.5 m/s | 0.9 moderate | 10.3h |
How to Get to Chamlang
Standard approaches begin from Lukla or regional airstrips followed by trekking toward the eastern valleys; from Kathmandu arrange permits and a licensed expedition operator. The final approaches require several days of trekking and glacier travel; hire a Nepal-registered guide and high-altitude support.
Tips for Visiting Chamlang
- Hire a local trekking agency and a high-quality expedition guide; Chamlang is a technical peak best attempted with experienced support.
- Acclimatize properly - Chamlang's approaches involve long ascents and glacier travel at high altitude.
- The normal route is steep and glaciated; ensure up-to-date icefall and crevasse information and appropriate rescue contingency plans.
- Best climbing window is pre-monsoon (April-May) and post-monsoon (late September-October).