We’ve been on holiday with two dogs. The last few days have been so hot that we could go out with them only early in the morning. Thankfully the place we are staying has stone walls and seemingly good loft insulation that moderate temperature fluctuations.
How have you been coping?
Get up early and open all the windows before the sun comes up above the trees. That reduces the temperature by about 5c. Beyond that, cool showers are nice.