the water collects the heat in the daytime and releases heat at night... so it feels like in the day its cold (cuz it is collecting and not releasing) and in the night it is warm (the warmth is being released)
Also besides the other answers, there is the difference between the water temperature and air temperature, which makes the water feel cool on a warm day, and warmer at night than the cool night air with no sun.
Chat with our AI personalities
No, it does not.. the contrast of the cold rain and the warm water makes it feel like the water is warm. But it is not.