What clothes should I wear when traveling to Switzerland in summer?

The average summer temperature in Switzerland is 22℃~ 12℃. The average temperature during the day is 22 degrees Celsius. It is recommended to wear short suits, T-shirts, thin jeans, casual clothes, professional suits and other comfortable clothes made of single-layer cotton and linen fabrics. The average temperature at night is 65438 02℃. It is recommended to wear warm clothes such as suits, jackets, coats, suits and thin sweaters. The cities with the highest average daily temperature in summer are Lugano (26℃), Geneva (25℃) and Zurich (23℃). The cities with the lowest daily average temperature in summer in Switzerland are Lugano (0℃), Geneva (-2℃) and Zurich (-3℃).