October to November (Autumn): Ideal season with clear skies, perfect temperatures (15-25°C), and best Himalayan visibility. Weather is stable and comfortable for sightseeing and trekking. Visibility for mountain views is excellent.
February to March (Spring): Mild temperatures (10-20°C), blooming rhododendrons, and clear mountain vistas. Slightly more rainfall than autumn but manageable. Good for trekking with fewer tourists than peak season.
December to January (Winter): Cold but clear weather (5-15°C), fewer tourists, and excellent photography conditions. Higher altitude areas may have snow limiting some activities. Winter trekking possible for experienced hikers.
Avoid: June-September (monsoon) brings heavy rainfall, landslides, poor visibility, and leeches on trekking trails. March onwards sees increasingly hazy skies affecting views.