What should I wear when traveling to Germany in May?

The average temperature in Germany in May is 12℃~22℃. The average daytime temperature is 22°C. It is recommended to wear comfortable clothes such as short suits, T-shirts, thin jeans, casual clothes, and professional suits made of single-layer cotton and linen fabrics. The average temperature at night is 12°C. It is recommended to wear warm clothes such as suits, jackets, windbreakers, casual clothes, jackets, suits, and thin sweaters. The cities in Germany with the highest average daily temperatures in May are Bari (22°C), Florence (23°C), Cagliari (22°C), and Rome (22°C). The cities in Germany with the lowest average daily temperatures in May are Bari (13℃), Florence (11℃), Cagliari (12℃), and Rome (12℃).