Itchy face in summer may be caused by ultraviolet allergy, sunscreen product irritation, excessive sweating and so on. 1. Ultraviolet allergy: due to the summer sunshine, the face is exposed to ultraviolet radiation for too long when you go out, which may cause mild inflammation of the skin on the face, triggering itching. 2. Sunscreen product irritation: If the sunscreen product used contains irritating ingredients, it can also irritate the skin and cause itching sensation. 3. Excessive sweating: summer temperatures are too high, sun exposure, sweat secretion is more vigorous, not timely cleanup will also appear itching. Itchy face in summer may also be other reasons, itching is serious and timely to go to the hospital for examination and treatment, to avoid aggravation of the condition.