What should I wear when traveling to Colombo, Sri Lanka in May?

The average temperature in Colombo in May is 26℃~31℃. The average daytime temperature is 31°C. It is recommended to wear cool and breathable clothes such as shorts, skirts, thin skirts and shorts made of light cotton fabrics. The average temperature at night is 26°C. It is recommended to wear cool and breathable clothes such as cotton and linen shirts, thin long skirts, and thin T-shirts. The cities with the highest average daily temperature in Colombo in May are Anuradhapura (33℃), Batticaloa (33℃), Galle (31℃), and Jaffna (33℃). The cities with the lowest daily average temperature in Colombo in May are Anuradhapura (25℃), Batticaloa (26℃), Galle (26℃), and Jaffna (27℃).