Place all the ingredients in a blender. Blend for 10-20 seconds until pureed and combined.
Then place the water in a pitcher and chill for 2-3 hours. Serve over ice and enjoy!
Notes
If you prefer sweeter watermelon water, add 1/4 cup of sugar to the blender prior to pureeing.This water is best served fresh, but you can also store it in the refrigerator for up to 4 days. The water will separate some when stored, so blend or mix thoroughly before serving.