Here is a post I did for a specific question on a different forum. Perhaps some of it will be of use. Regarding November weather - it will be starting to get cooler in the mountains - think normal uk temps - but still much warmer in the lower lands. I'd still camp (have decent bag, and thermal sleeping map). Cheers
I'm back and forth the UK / Barcelona every month for work - and have done the trip by bike loads of times. In summer I always ride down through France, but use the Santander/Bilbao ferry in autumn / spring. So here is a suggested route across from Cantabria to Catalonia:
Santander CA141 to Bilbao (if coming into Santander) the coast road.
Worth a couple of hours in Bilbao - bike parking in centre really easy.
N634 to Donostia (San Sebastian) - beach/food/town fantastic.
If July then google "Langostino Moto" nearer the date and look for the date of the July bike meet in Ibarra, Basque Country. For 30€ you'll get Sat night camping, 3 course dinner (with wine), breakfast, 3 course Sun lunch (with wine!), bike show, games, ride out and loads of good music/entertainment on Sat eve. I guarantee you will be made welcome - and have the opportunity to see true Basque culture and hospitality (all bike types welcomed). To get there use E80/E5 south of Donastia. Ibarra is just passed Tolosa.
From Ibarra - or Donastia - N121A to Pamplona - again worth a few hours in the old part, and bike parking is easy.
A21 - N240 passed Yesa (ride around nice lake) and to Puente la Reina de Jaca
Turn south on A132 to Santa Maria (la pena lake) then A1205 to Anzanigo (8kms)
last bit road is poor, but will take you to a bike campsite (just passed the town, you'll know it when you see it) run by Emilio and his family. Cheap, and with pool. Must include dinner (3 courses with wine) which will be with all the other bikers staying there and his family - very sociable, very friendly, very knowledgeable about bikes and bike routes in the area (off and on road) - ask him for maps and rutas - and follow the finger!
A1205 on to Jaca (optional side track to Alto Monastry)
N330 to Sabinanigo
N260 to Biescas to Broto to Ainsa to Castejon de Sos and then to N230
2 options - north on N230 through tunnel to Vielha, Val d'Aran (fantastic - with lots of good camping just north of the town) then C28/C13 to Sort - N260 to La Seu D'Urgell; or
- south on N230 into Pont de Suert to Senterada to Segur to La Seu D'Urgell
From there you are around half hour from Andorra (north on N145) if you feel like a further detour - Andorra la Vella CG1 to CG2 to Pas de la Casa (some good shops for bike kit - long lunch breaks though) then N320 into France, N20 back into Spain at Puigcerda.
If you want a shorter route, N260 to Puigcerda.
Then you must do my most fav bike road - the N152 to Ribes de Freser. Remember to take some breaks to capture the scenery (completely covered in snow in winter), and chat the many other bikers who will also be parked up doing likewise (also one of the few roads where you'll find police bike spot checks!)
The N152 south to Ripoll and N260 east to Olot
C152 / C63 / N141 will get you close to Girona - don't miss this fab city. You can get right into the city centre, with a bike park on the river next to the jewish quarter, well worth a visit (and good place to lunch).
From there, and if interested in camping in the Costa Brava, take the C63 to Sant Feliu de Guixols - very pretty, like a Spanish Tenby!
There are loads of camp sites just north or south from there - just ask in the tourist information centre (in town hall on the prom) - you can park outside.
GI682 coast road south to Tossa is great (you'll find the start of it tucked behind the church/monastry in Sant Feliu). Tossa also has good coastal camping.
You can ride most of the way down to Barcelona on the N11 coast road, passing through some nice towns - but I don't recommend entering the city on anything other than motorway (it just gets too complicated). Take your time coming in, stick to speed limits,and follow signs to the centre. There is plenty of free bike parking right in the centre, but also plenty of bikes! So expect to have to look for a few minutes before finding a slot.
These are the best roads I've found for my style of riding across from Santander. I wouldn't recommend crossing further south (eg via motorway through Zaragoza) - it just gets hotter and windier! In general you can cross this route in July reasonably comfortably with standard bike gear - but expect to toast a bit from Girona onwards. I don't wear leathers at all from May to Nov - just highly vented textiles. You'll see plenty of 140kph t-shirts, shorts and flip-flops here at that time of the year!