The temperature of hot water from a faucet can vary based on several factors, including the setting of the water heater and local plumbing regulations. Typically, hot water from a residential faucet ranges from about 120°F (49°C) to 140°F (60°C). In some cases, water heaters may be set to higher temperatures, but temperatures above 140°F can pose burn risks, especially for children and the elderly.
It's important to check the specific settings on your water heater for accurate information. Some safety recommendations suggest keeping the water heater set to around 120°F to prevent scalding while still providing adequately hot water for most uses.