Weather of Siachen glacier

Winter (Oct to Jan) : Water channel freeze during this period. Snowfalls are occasional and snow bridging of crevasses takes place. Avalanches are not common. Hazards to movement continue.

Late winter (Feb to Apr) : This period is marked by heavy snowfall, bad weather conditions, frequent avalanches, snow slides and emergence of crevasses. Movement is comparatively restricted.

Summer (May to Sept) : Intensity of cold is reduced. Crevasses and glaci-fluvial streams make movement hazardous, sometimes impossible. During July - Aug, the region is prone to long spells of bad weather. The glacial region experiences wide range of temperature variations from place to place. The approximate fall in temperature of 5-7 C with an increase of 1000 m in altitude results in a temperature contrast of 20 C between sunny and shady areas.