Join Date: Jul 2009
Location: In a land far far away, or so I wish.
• Horses: 0
I do not think anyone can answer this question for you. It depends totally on the horse and what your blanket routine was, etc.
12degC = approx 54degF.
That is pretty warm if you did not rug until it got really cold and your horse had on minimal blanketing all winter.
If you rugged as soon as the temps dropped even slightly and you have added layer during the colder weather and modified layers depending on the temp then that is probably not warm enough for your horse to go totally naked outside.