The more often you wash your face it will make skin irritation and stimulate excess oil production. Limit rituals to wash your face quite twice a day, morning and evening. If you just move indoors, do not wear makeup, and do not sweat too much, just rinse face with warm water at night.
Does this mean you can skip face wash in the morning? Certainly not. As you sleep, your facial skin performs a self-cleansing ritual, pushing waste and dirt out through the sweat glands and pores. Keep any residual garbage left on your skin in the morning. So yes, you have to wash your face twice a day.