The boiling point of water is 100°C or 212° F at 1 atmosphere of pressure (sea level), but water boils at a lower temperature as you gain altitude (e.g., on a mountain) and boils at a higher temperature if you increase atmospheric pressure (lived below sea level).ere's the answer to this common question. Answer: Short Answer: The boiling point of water is 100°C or 212° F at 1 atmosphere of pressure (sea level).