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This Refreshing Watermelon Mint Lemonade is The Perfect Choice for a Summer Picnic

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Do you need a refreshing drink to take along on a summer picnic? You can’t go wrong with this Watermelon Mint Lemonade recipe that the whole family will enjoy!

Watermelon Mint Lemonade

This refreshing watermelon mint lemonade is super quick and easy to prepare. It is sure to be a hit at your next summer picnic!

This is one of those recipes that you’ll want to tinker about with to find the right flavour combination for your tastebuds.

For example, the amount of water you need to add will vary depending on how juicy the watermelon is and how strong you want the flavour to be.

We have included directions for a mint-infused simple syrup, but the watermelon adds a lot of sweetness so you may not wish to sweeten it further.

It really depends on how sweet you want the final beverage to be.

If you are serving this recipe outside on a warm day, make extra so you can freeze some into ice cubes so your drinks don’t get watered-down as the day or evening progresses.

These novelty tropical ice cubes would be the perfect choice!

Watermelon Mint Lemonade

Watermelon Mint Lemonade

Prep Time: 15 minutes
Cook Time: 12 minutes
Total Time: 27 minutes

This refreshing Watermelon Mint Lemonade is super quick and easy to prepare and can be adjusted to suit your tastebuds. It's the perfect summer drink to serve at your next cookout.


  • Mint Simple Syrup (optional)
  • ½ c. granulated sugar
  • ½ c. water
  • ¼ c. tightly packed fresh mint leaves, stems removed and crushed
  • Lemonade
  • 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 Simple Syrup

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


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


If you are serving this recipe outside on a warm day, make extra so you can freeze some into ice cubes or an ice ring (if serving in a punch bowl).

Using ice cubes made of the beverage you are serving rather than plain water will prevent watered-down drinks as the day or evening progresses.

For an adults-only variation, add some citrus-flavored vodka before serving. 

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This Watermelon Mint Lemonade is easy to make and tastes delicious. It's perfect for summer picnics!

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