Late October to February is extremely harsh in Spiti Valley. Temperatures plummet below freezing, roads become dangerous, and most homestays shut for winter. The Manali–Kaza road closes, and only the Shimla route remains, often snow-covered. For regular tourists, it's not a recommended time to visit. However, if you're an experienced traveler, well-prepared for high-altitude condition... https://www.captureatrip.com/blog/best-time-to-visit-spiti-valley