At the beginning in Le Puy-en-Velay, it's often cold, around -1°C to 6°C, and there can be winter weather like light freezing rain and showers.
As you go on towards Nasbinals and other mid-way places, it's still cold, around -3°C to 4°C, with mostly cloudy skies and sometimes snow showers and rain. Further on to Estaing and Espeyrac, temperatures rise a little, around 1-6°C, with cloudy skies and light rain.
When you get to warmer areas like Cajarc and Varaire, temperatures go up to 2-9°C. The sun comes out more often, but sometimes, it can rain. The same pattern happens in Figeac and Lectoure, with temperatures around 1-9°C.
In the hotter southern areas of Condom and Eauze, it can get to 10°C. Even with occasional moderate rain and sometimes heavy showers, the weather pretty much stays the same up to Arzacq-Arraziguet and Navarrenx.
The last part of the journey through Aroue, Ostabat, and ending at Saint-Jean-Pied-de-Port has a more temperate climate at around 6-12°C. Despite some moderate or heavy rain showers, there are also sunny times, making the journey go from freezing to mild.
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