Club sources said chartered planes will take the superstar and his team-mates to away games, requiring them to make long coach journeys through desert landscapes.
The Pro League season runs from August to May, avoiding the sweltering heat when temperatures regularly exceed 40 °C (104 °F).
Even evenings, when many sports are played, can stay above 30C (86 Fahrenheit) in August and September and from March until the end of the season.
“The weather will present a challenge for Ronaldo… but I think he will adapt and excel,” said Saleh Al-Khalif, deputy editor-in-chief of Al-Riyadiyah.