Why swimming pools are cooler at midday and warmer in the afternoon?

Question

I’ve always wondered how come the water in a swimming pool exposed to the scorching midday summer sun feels cooler when you dive, say around 2-3 pm, and warm as tea around 7 pm when the sun has almost gone.

In: Physics

Answer 1

It takes time for the water to warm up and it retains heat. It’s generally hotter outside at 2pm than noon and water exaggerates that effect.