Is it cold to learn to swim in June?

Not cold. The best time to learn swimming is in summer, because the weather is warm and sunny and suitable for outdoor water activities. In June, especially in early summer, the temperature has started to rise, and the water temperature has gradually increased, which is suitable for learning to swim. It's not cold. The water temperature is very suitable. Swimming is a skill that people float upward under the buoyancy of water and make their bodies move regularly in the water by virtue of buoyancy.