Temperature (and rain) is certainly a big influence if you plan to work outside (it's another lousy UK summer here so the chances to work outside without it threatening to rain, if not actually raining, have been very few). And Ontario winters generally get a lot colder than here. Spray finishes need warm conditions otherwise condensing moisture fogs the finish.

But there are finishes that you can apply inside, so you can stain, rather than paint the body, and use clear wipe-on poly rather than a polyurethane spray for protection, or use Tru-Oil or Tung-Oil, which take a lot of coats to build up a thick enough protective layer, but at least it gives you something to do if the weather's bad.