Climate of Nepal

Nepal has a generally temperate climate, however altitude makes distinct variations. The monsoon sweeps up from India each summer, making mid June to mid September humid and wet. The three other distinct seasons are all suitable for trekking and each has its own advantages.

Changing global weather patterns have had their effect on the Himalayan climate and mountain weather is notoriously changeable. Always be prepared for a change in conditions and note that if severe or dangerous weather conditions occur your guide’s decision on any course of action is final.
Winter (December-February) It is cold and you will need to be prepared, but the air is very clear providing the best mountain views.
Spring (March-May) Days are increasingly warm and the rhododendrons are in bloom. Mist and clouds are not uncommon.
Summer (June-August) The monsoon season. It will rain every day, although generally in the evening and night. The hills turn lush and green and at higher elevations the alpine plants will bloom.
Autumn (September-November) The most pleasant trekking season where days are warm, but not hot; there is little chance of snow and skies are clear.