When the water from the Niagara River plunges over the falls, it creates a lot of turbulence and friction. This causes the water to break up into tiny droplets that are blown around by the wind. The sun then shines through the mist, creating a beautiful rainbow effect.
The amount of mist at Niagara Falls can vary depending on the time of year and the weather conditions. In the summer, when the water flow is at its highest, the mist can be very heavy and even create a fog. In the winter, when the water flow is lower, the mist is usually lighter.
The wind speed also plays a role in how much mist there is at Niagara Falls. When the wind is blowing strongly, it can help to disperse the mist and make it less noticeable. When the wind is calm, the mist can be more concentrated and even hang in the air for a longer period of time.
Finally, the humidity in the air can also affect the visibility of the mist at Niagara Falls. When the humidity is high, the mist can be more difficult to see. When the humidity is low, the mist can be more visible.