I prefer leaving my horses out 24/7 unless it's storming or snowing... however it's going to be 103 this whole week. Today I left them out, I'm curious... Which do you think is cooler? The stalls or the outside. I have not run electricity yet so I do not have fans... I need to get that done ASAP.....
It really-really depends how cool it is in your stalls. I don't, but they stayed in shed whole weekend (we have really bad heat outbreak Sat - Tue). I did put big fan there (my qh kept her bum next it it all the time). If you have nice shed or enough trees - outside is OK. If it's all opened, I'd put in stall.
Sonny is out 24/7 even in the heat. He has a run-in-shed and if he thinks it's hot he goes in there...and it's a good 10-15 degrees cooler in his shed...yes I even hide in there if it's too hot for me hehe).
Sonny is a weaver and more than likely would weave his feet down if left in a stall. The lower stalls are cooler than the upper ones...but his stall is in use anyways......hehe
Sonny is happier outside and isn't sweating even with this fly sheet on...if he starts sweating with it on I'll take that off and that will help.
I personally think it's healthier even in the really hot parts of the day for them to be outside all the time. They get fresh air and they seem to be happier (at least all of the horses at the barn seem happier)
Leave them out. Unless you have a small pen with NO SHELTER and the only other option is the stall. Even then, most barns, without the benefit of a fan can become sweltering quickly.
If there's any shade anywhere in the pen, let them out! They will find where the best shade and breeze is, plus they can see the rest of the world, which horses prefer to being locked up anyways. The social interaction, the freedom to move and the buddy system they have of swishing flies (standing nose to tail) would make them much more comfortable than just being stall bound. Just make sure they can reach fresh water and a salt.
I have an overhang and 2 stalls propped open. The rest of the stalls are inside, I only have 2 dutch doors. I have them out, I thought that would be better too... and if I get the electricity run I can hang fans in those two stalls...
I would leave them out too. Especially since they have shelter there that they can use if they want. Once you get your barn wired I would definitely put some fans out, it helps a lot for both the horses and you. Also, if your horses are sweating a lot I would suggest hosing them off, it'll help to cool them down for a little while. Another thing is to use lots of fly spray and even a fly sheet (they even make some that reflect the sun too to keep your horse cooler) to keep the bugs away because if they're not stomping or running around trying to keep the bugs off they'll stay much cooler.
Can't really answer that question. I don't know what your barn is made of and the location of it will affect how the sun hits it so...If your horse has access to a shelter with shade and lots of fresh water,there is not reason why he couldn't stay outside.