To further your research re Walking in Winter see these earlier recent threads filled with useful links and tips.
https://www.caminodesantiago.me/community/threads/logrono-to-burgos-in-january.50991/
https://www.caminodesantiago.me/community/threads/november-december-cf.50932/
https://www.caminodesantiago.me/community/threads/walking-the-camino-in-december-january.37261/
Sillydoll who is a Forum member has in her blog compiled encyclopedic information on Winter Walking.
http://amawalker.blogspot.fr/2009/10/walking-in-winter.html?m=1
Twice during winter caminos I have sat out true blizzards; in Villafranca Montes de Oca, February 25, 26, 2006 and Foncebadón, March 5,6, 2009. Even late November 2012 the climb up to O Cebreiro was packed with snow. You can see the snow and read my blog accounts of these three memorable storms here.
http://mermore.blogspot.fr/p/memories.html
Luckily open albergues offered welcoming shelter, heat and companionship.
Most of us who walk in late autumn and winter wear and carry lightweight but warm layers which can easily be added or removed while walking. Each pilgrim develops a favorite combo. Scan the Forum's Equipment
topic http://www.caminodesantiago.me/community/forums/equipment-questions.30/
to see a multitude of varied approaches. Here's mine
http://mermore.blogspot.fr/p/kit-and-tips.html
Hi, I will be starting my fifth Camino on October 29th in SJPP. I have never done a late autumn camino before. I have always walked in trail runners before and never with boots. My Brooks have always served me well. I would love to walk in them again but I am sure that would probably be a mistake. It seems that you always do your camino at this time of the year or later. I was wondering if you could tell me what boots you use and if you got them a size larger than normal, as I do with my trail runners. I do not want a boot that is as light as possible. I also do not want a high ankle boot. Something just up to the ankle would be fine. I have bought some really good gaiters so I am hoping that those will keep snow, slush and rain out of the boot from the top. I am also torn about getting water proof boots as I am fearful of them not breathing and getting blisters on dry days. Basically any suggestions. It seems you have either stopped adding your new Caminos to your list or you have not walked for about 4 years. Any help you have would be appreciated. I know that footwear is really personal. Also what was your second pair of shoes? I have always used Toms at night as they are so comfortable and light. Thanks so much.
During past winter walks in Roncesvalles the bar and restaurant of La Poseida were usually open.
I always carried basic rations since the only shop or bar in town may NOT be open during the off season! My basics include tea bags, packets which make a cup of soup (even including croutons), firm cheese, small sausage, simple cookies and some chocolate. Often these same ingredients serve as a predawn breakfast hours before any Spanish bar would dream of opening!
I have never nor would ever walk before sunrise in winter.
For me a water coil is a must whatever the season.
Remember winter is a great time to walk, but you must be PREPARED!
Happy planning, stay safe and Buen camino!