When Liverpool take to the field in Madrid's Wanda Metropolitano stadium for the Champions League final, the temperature is forecast to be a roasting 27C in bright sunshine.
But whereas most of us would look to head to the bar or the beach in those conditions, the men in red instead face 90 or 120 minutes of unceasing effort against a difficult opponent in Tottenham , where the smallest margins could have a big impact.
That's why their hot weather training camp in Marbella makes perfect sense - especially with Spurs choosing to stay at home .
The weather is sunny and between 22-27C in Spain, closely replicating the conditions they will face in the final, compared to 15C and overcast back here.
Barry Drust, a professor in Applied Exercise Physiology at Liverpool John Moores University, says the body has to behave differently to cope with any rise in temperature - even before exercise.
He explained: "Humans control their body temperature, but we have relatively small limits to keep to so it still works effectively.
"When we are exposed to heat, our body has to work harder to keep itself cool. We do that by sweating more and also by redistributing our blood flow so we have more blood at the surface of the skin. That raises our skin temperature which allows heat to be offloaded into the environment.
"In order to do that our heart rate will rise and the systems that help us move oxygen around our bodies have to work harder, even before you think about supporting whatever exercise we are doing."
For the Liverpool squad, playing football means relying on general fitness to more for 90 minutes or longer, along with short bursts of explosive fitness - for instance sprinting onto a through ball.
Prof Drust said: "The body will work harder and use more energy when it is asked to perform in the heat instead of the cool. The consequences of that for footballers or athletes is that performance levels can drop.
"For footballers playing in hot weather, that may show itself through the amount of distance they run over the course of a game being lower as they have run out of energy quicker than they normally would.
"They could also be less able to sprint when called upon, be that tackling back or racing down the wing to cross the ball.
"Of course football is complicated too because the reason someone is running less could be because their manager has told them to for that specific game."
As super-fit footballers, the Liverpool squad are already better able to cope with playing in different conditions.
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However, the Reds' trip to Marbella could give them a crucial advantage in the final by getting them used to playing in the sunshine - and helping Jurgen Klopp and his team of coaches and experts fine-tune their strategy for Madrid.
"If you think an athlete's performance may be compromised by the temperature, going to a hot climate before the competition allows the body some time to adapt, which will reduce the stress it would face when it is called upon to perform - in this case in the Champions League final," said Prof Drust.
"You get the best adaptation in around 8-10 days, but Liverpool will still get some adaptation in the time they are in Marbella as they become used to the heat.
"There are probably other reasons for going as well. It has been a long season, so going away and training in different surroundings allows them to change it up and recharge their batteries, while being away from public and media scrutiny."
Prof Drust added: "The temperature could mean Liverpool will find it harder to play in their usual high-tempo and high pressing style so they could be looking at different tactics, like how football in South America or Africa is slower but more explosive than we typically see over here.
"On the other hand, they could be focusing on what they have to do to allow them to perform like normal despite the heat.
"I'm sure their sports science team will be looking at a range of strategies including fitness, drinking strategies and nutrition so the players can cope with the heat and still do what is needed in the way Liverpool play.
"Sport at this level is decided on fine margins, so camps like this certainly won't hurt."
