Saudi Arabia is a desert, and the weather can get very hot in the summer, reaching up to 109 degrees Fahrenheit in Riyadh in August. If you’re traveling to Saudi in the summer, make sure you have adequate protection from the sun.
January is the coldest month in Saudi, with average highs of 69 degrees Fahrenheit and lows in the 40s, especially in the desert at night. The Northwest Mountains of Saudi (Turaif, Tabuk, Arar, and Rafha) also receive some snow and will have colder temperatures. Jeddah and Riyadh locals often travel to the mountains to enjoy the snow in the winter.