In reply to Fenda:
Ooooh interesting question!! Although not able to take whole years off I hope to soon be able to take reasonably large chunks of time off work to go away to cool places. The sorts of places I'd look at going if I were you would be popular "dirtbag" areas or I'd sort out a partner. Always fun thinking of amazing places to go so I'll rattle off a list for you!!
Jan-March; Spain earlier on you might want to be further south but realistically Catalunya will be climbable and can still be hot in the sun at this time of year. If you have been training hard at the wall in the build up to this, Spanish sport climbing would be a great way to convert that into rock fitness and imo wouldn't be a chore.
Other options; Tasmania + Australia - this would be amazing, dossing in the dirt at Araps climbing awesome routes everyday. Will be hot to begin with but conditions will get better and better and it will be really dry/Thailand/Scotland (if you must)
April-June; I'd probably drive home from Spain via some of the amazing French crags like St. Leger, Gorge du Tarn, etc these crags are just as good as their Spanish counterparts.
Once back in the UK I'd then make the most of what is often the best time of year here - I'd chase the weather either with a single partner or just hooking up with folk all over. South West, Pembroke, North Wales, Lakes, Scotland and Ireland. Interspersed with hanging out with friends/family and doing a bit of fell-running to mix things up a little.
Other options would be to stick around on the continent venturing higher and higher as conditions allowed. Dollies, Chamonix etc.
July-August: If I had just been in the UK I'd head to the Alps or the Dolomites to do some big routes. I'd also seriously consider going to Rocklands in SA looks amazing. Swizz bouldering also a good option. Squamish & Bugaboos would also be amazing.
Sep-October: US is an obvious one. Most places will be prime to varying degrees at this time, certainly all the classic places in California.
Other options: South Africa - Waterfall Boven and all the amazing looking trad. Font wouldn't be a bad shout.
November-December: Either go somewhere warm like Spain/Southern Hemisphere/Morrocco or head back home and enjoy good grit bouldering temps and potential scottish winter if you really must. Enjoy chrimbo with your fam + friends.
If you can do multiple years of this sort of thing a) I really envy you and b) I'd just see if you can get folk to go to a place with you and if not go wherever you will be able to find partners/not need them. I.e. Arapiles/Yosemite/Squamish/Font/Thailand etc.
I hope to do some/all of these trips over the coming years so maybe I'll see you around!