Pashupatinath Temple, Kathmandu
HIGHLIGHTS / TOURIST CROWDS: If you like religious events: Visit during Maha Shivaratri Hindu festival (February or March each year, check dates via google) or during Shravan, the holiest month, in July/August. However, it's very crowded during these times. If you'd like to avoid crowds visit from September to November: Great weather, quieter and also the best months for trekking in Nepal
The temple is open for visitors year round.