The best time for trekking in Nepal is spring (March–May) and autumn (October–early December) with stable weather, clear views and ideal conditions.
Autumn: Pleasant temperatures, the best long-distance views, fresh greenery.
Spring: Mild climate and spectacular rhododendron blossom (especially March/April).
Winter (December–February): Off-season with clear views and few trekkers – ideal for those who can handle the cold.
Monsoon (June–September): Trekking only possible in dry regions such as Upper Mustang and Upper Dolpo.