Spring and autumn seasons are the best time to trek in Nepal. The days will be sunny and warm. The sky will be clear, and the views will be stunning. The mornings and nights might be cold as you gain altitude. During spring, the entire trekking paths will be vibrant with the blooming of Rhododendrons all around. During summer, as the temperature rises, the precipitation level will be high. Due to heavy rainfall, chances of landslides increases. While during winters, the cold becomes unbearable, which makes trekking impossible.