This watermelon mint lemonade is quick and easy to make and extremely refreshing on a hot summer day. This is one of those recipes you’ll want to tinker around with to find the right flavor combination for your tastes. While the watermelon adds a lot of sweetness you may not wish to sweeten it further so I’ve included the mint-infused simple syrup recipe we use.

This watermelon mint lemonade recipe is it is great with or without alcohol making it a family-friendly beverage like the lemon herb spritzer.

Watermelon Mint Lemonade Recipe

Watermelon Mint Lemonade Ingredients

6 c. fresh watermelon, rinds removed and cut into chunks
¾ c. fresh lemon juice (6-8 medium lemons)
½ c. cold water, (plus more, if needed)
½ c. fresh mint leaves, tightly packed with stems removed
fresh mint sprigs, for garnish
lemon slices, for garnish
mint infused simple syrup, optional
Citrus flavored vodka, optional adult version

Mint Simple Syrup Ingredients

½ c. granulated sugar
½ c. water
¼ c. tightly packed fresh mint leaves, stems removed and crushed

You’ll find these kitchen tools useful (I've included affiliate links to the products I use at home):

Citrus juicer – I use this for everything and it gets every last drop of citrus juice with minimal effort.
Ceramic knife – I LOVE my knife set, they stay super sharp and are easy to store with the blade cover.

Watermelon Mint Lemonade Directions

Add watermelon chunks, lemon juice and ½ cup cold water to a blender and blend until liquefied. Pour through a fine mesh strainer to remove any larger particles. Taste and add more water, if needed. Sweeten with mint-infused simple syrup, if desired.
Bruise ½ c. fresh mint leaves with fingers to release oils and add to the bottom of a large glass pitcher or jar. If serving immediately, add ice cubes to the container and pour the watermelon mixture over top. Add fresh lemon slices to the container for garnish.
To serve, pour over ice and add a sprig of fresh mint and a lemon slice for garnish.

Mint Simple Syrup Directions

To make the simple syrup, add the sugar, water, and crushed mint leaves to a small saucepan and heat over medium-high heat. Stir until the sugar dissolves completely.
Reduce heat to low and simmer for 10 minutes.
Remove from heat and discard mint leaves. Cool completely before using.

What I like to do is make a double batch so I can freeze have into ice cubes and add to the pitcher, this way the lemonade stays cool without watering it down. Adding a little citrus infused vodka to the glass before pouring the lemonade easily takes this recipe from family-friendly to adults only!

We hope you enjoy this refreshing watermelon mint lemonade as much as we do.