I just finished walking the
Via de la Plata and
San Salvador in March, and Primitivo in early April, where I spend consecutive 37 nights over the distance of about 1200 km. The conditions in albergues should be more or less similar to del Norte in October - but me, with a few notable exceptions I was almost
always cold, I almost
always wished I had a better sleeping bag (not a cheap summer decathlon sleeping bag) and except for the last 100 km, there were almost never more than 2 or 3 or sometimes 4 people in a usually big dormitory room. That's typical for off-season, non-Frances Camino during pandemic (yes covid may be back in the fall). Very often you have a big room with a small heater just for yourself, and heating almost always is on timer, which means it goes on for maybe 2-3 hours in the evening and goes off
completely at night. When you go to bathroom at night, your teeth chatter. And heaters are turned off at night not only in albergues, but also in cheaper private rooms (those 30 euros and under). Well in private albergues and pensions you have blankets, but you don't spend 100% of time in bed, right? You want to do your chores, hand-wash your clothes, take a shower, shave your face if you are a man, make some food, eat it, socialize if there is another pilgrim (s) and if you are in a cold, cold place all those things are just not fun.
Oh and I forgot to say that hand-washed clothes don't dry at night in cold albergues. That's rather obvious.