It’s been 95 with insane humidity in my part of Florida for a few weeks now. All turnouts have shade. Waters are filled and refreshed daily. Fans in stalls and aisles. I hose off everybody in the afternoon if I’m around. Non-sweating horses go in the shaded pen with the misters on. The misters make a huge difference.
I don’t do any heavy riding after 9am. I might walk someone in the back pasture, but nothing intensive. I keep rides short, maybe 30 minutes. Everyone is hosed off post-ride until they are cool. I’ve got one mare that threatens to quit sweating every summer so she is on a very light work schedule with sweating supplements. I watch her like a hawk - so far she a been doing just fine in turnout and during work.
I hate these months. I’m counting the days till October.