If you walk the Camino del Salvador in December, you'll find different weather at different places. It's mostly cool, with highs of 8 to 13°C, and lows of 0 to 5°C.
The path starts in León, goes through La Robla, and you'll usually see some clouds and sometimes rain. Often, mornings are cloudy, but it gets sunny later.
When you reach the mountains in Poladura de la Tercia and Pajares, expect both sunny and rainy days. In Pajares, it can often be rainy.
As you continue to Pola de Lena, Mieres, and finish in Oviedo, it gets slightly warmer but usually wetter, with heavy rain sometimes. However, you'll also have lots of partly sunny days.
So, be ready for any weather and changes in temperature.
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