The Willkakuti or return of the sun is celebrated on June 21st in the pre-inca ruins of Tiwanaku. This ritual is known as the Aymara new year. The return of the sun symbolizes the reception of renewed cosmic energies and also the beginning of the new agriculture cycle.
In Bolivia Christmas (Navidad) continues to be deeply religious, maintaining the original meaning and purpose of the holiday. Most families set up a “pesebre” (nativity scene) in their homes and churches usually have very large ones somewhere outside the main door. The word pesebre literally means "stable". Sometimes people call them "nacimientos" (nativity scenes).
The weather in Bolivia can vary drastically from one climatic zone to another.
The summer months in Bolivia are November through March. The weather is typically warmer and wetter during these months. April through October, the winter months, are typically colder and drier.