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

The average summer temperature in Germany is 2 1℃~ 1 1℃. The average daytime temperature is 265,438 0℃. It is recommended to wear short suits, T-shirts, thin jeans, casual clothes, professional suits and other comfortable clothes made of single cotton and linen fabrics. The average temperature at night is 1 1℃. It is recommended to wear warm clothes such as suits, jackets, windbreakers, casual clothes, jackets, suits and thin sweaters. The cities with the highest daily average temperature in summer are Erfurt (22℃), Essen (22℃), Olbers Tofu (22℃) and Berlin (24℃). The cities with the lowest daily average temperature in summer in Germany are Erfurt (-3℃), Essen (0℃), Olbers Tofu (-7℃) and Berlin (-2℃).