Namgaychhoeling Gewog, located in the north-western part of Samtse Dzongkhag, covers 128.49 square kilometers. It is bordered by Norbugang and Doongtoed gewogs to the east, Pemaling and Tendruk gewogs to the west, Tashichhoeling and Sangngachholing gewogs to the south, and Haa Dzongkhag to the north. The gewog experiences hot, humid summers, dry, cool winters, and annual rainfall ranging from 1200mm to 3000mm, with snowfall in the northern part. The soil types include red, alluvial, and black soils. The gewog is divided into five chiwogs: Sernyagang-Tsholingkahr, Namgaychoeling, Pagshingkah-Tshachhugang, Gyalposhing-Satsangsa, and Chhunaggang-Chhoedeling.