The temperature in Skopje, venue for Tuesday night’s Super Cup clash with Real Madrid, hit 40C today, with it still expected to be around 32C at kick-off.
UEFA have made provisions for two drinks breaks, in the 30th and 75th minutes, to ensure players from both sides do not dehydrate in the searing heat.
Mourinho admitted he tried to schedule United’s training to factor in the heat, but his plans were scuppered by the Manchester rain.
“I knew the weather was like this,” said Mourinho. “Since we were back from the States, I decided to train in Manchester every day at 4pm.
“I was trying to keep that feeling of the heat, but it was raining every day.
“But even for Madrid it has to be hard. I know that in Madrid they train in the hot weather and are more adapted than us, but we have to play and enjoy a special moment.
“It’s not many times as a player has a chance to play in the Super Cup unless, like Barcelona and Madrid, you have plenty of opportunities.
“Maybe the referee will allow the players to have some fresh water, but we have to try [and cope].”