Watermelon Lemonade

This post may contain affiliate links. As an Amazon Associate, I earn from qualifying purchases.

This easy and simple watermelon lemonade tastes like summer in a cup! It uses fresh watermelon and takes only 3 minutes to make at home.

Watermelon lemonade in a glass with a black straw.

Want to save this?
Enter your email and get it sent straight to your inbox. Plus, get recipes & tips from me every week!
Please enable JavaScript in your browser to complete this form.

Homemade Watermelon Lemonade

Watermelon lemonade is a refreshing, caffeine-free fruity drink. The mild, cool flavor of watermelon complements the tartness of lemon juice.

Tasted and tested, my recipe uses fresh lemon juice and real watermelon. It tastes perfectly sweet and tart.

  • Ready in 3 minutes, this watermelon lemonade is perfect for cooling down on hot days.
  • It includes watermelon juice that’s made with a blender and strainer, so the final drink is smooth and free of chunks.
  • One batch makes 16 ounces, or 2 cups. Feel free to double or triple it for more servings.

RELATED: Pineapple Lemonade

Ingredient Notes

Water, sugar, lemon juice, watermelon, and ice in separate containers.
  • Watermelon: Since you’ll need to puree the watermelon in a blender, avoid watermelon with seeds. Use the seedless variety.
  • Lemon juice: If possible, use freshly squeezed lemon juice instead of the bottled version. Be sure to use ripe lemons, which will feel heavy and plump. This is a sign that there’s a lot of juice in the lemon.
  • Sugar: White sugar, or granulated sugar, is typically used to make simple syrup. You can also use brown sugar, but note that the simple syrup will be brown.
  • Water: For the best flavor, use filtered water to make the simple syrup and watermelon juice.
  • Ice: If possible, use ice made with filtered water the best quality drink.

Jee’s Tip

To pick the best watermelon for this recipe, go for one that has a large yellow sunspot. The larger the yellow spot, the sweeter the watermelon.

For full ingredients and detailed instructions, please see the recipe card at the bottom of the post.

Step-by-Step Instructions

Adding sugar to hot water in a measuring cup.

Step 1: Add sugar to hot water and stir until dissolved to make the simple syrup.

Watermelon lemonade ingredients in a blender.

Step 2: Put the simple syrup, cold water, lemon juice, and watermelon in a blender. Blend on low speed.

Strain watermelon lemonade into a measuring cup.

Step 3: Strain the watermelon juice through a mesh strainer.  

Watermelon lemonade in a glass with ice.

Step 4: Pour watermelon lemonade into a cup with ice. Enjoy immediately.

Recipe Notes

Use fresh lemon juice.

Avoid bottled lemon juice, which often has a poor quality flavor. Freshly squeezed lemon juice is brighter and tastier. To squeeze lemons quickly, use a citrus juicer. You’ll need to squeeze about half a lemon to get 2 tablespoons of juice.

Change the proportion of juices.

For a stronger watermelon flavor, use more watermelon. If you want a more lemon taste, increase the lemon juice.

Make the lemonade ahead of time.

You can prepare this watermelon lemonade in advance and save it in the fridge without ice. This way, it won’t become diluted. Use within 3 days and add the ice just before drinking.

Expert Tips

  • For a different flavor profile, use strawberry syrup, hibiscus syrup, or ginger syrup in this watermelon lemonade.
  • If you want a less sweet drink, skip the simple syrup.
  • Drink the watermelon lemonade right after you make it. If it sits for too long, the ice will melt and make the drink watery.
  • Add lemon slices, watermelon chunks, or fresh mint as a garnish.
Watermelon lemonade in a glass.

If you tried this Watermelon Lemonade recipe, please leave a ⭐⭐⭐⭐⭐ star rating and let me know how you like it in the comments below.

Pin this now to find it later

Pin It
No ratings yet

Watermelon Lemonade

By: Jee Choe
This 3-minute watermelon lemonade is the perfect summer drink. It's sweet, tart, and easy to make in advance.
Prep Time: 3 minutes
Total Time: 3 minutes
Yield: 1 serving (16 ounces)



Watermelon Lemonade

  • 4 teaspoons sugar
  • ¼ cup hot water
  • ½ cup cold water
  • 2 tablespoons fresh lemon juice
  • cup seedless watermelon, (chopped into small cubes)
  • 1 cup ice


  • Make the simple syrup.
    Add sugar to hot water and stir until dissolved. Use filtered water, if possible.
    4 teaspoons sugar, ¼ cup hot water
  • Blend simple syrup, cold water, lemon juice, and watermelon.
    Start the blender at LOW speed. Blend for 20 seconds.
    ½ cup cold water, 2 tablespoons fresh lemon juice, ⅔ cup seedless watermelon
  • Strain the watermelon lemonade.
    Pour the watermelon lemonade through a mesh strainer to remove the solids.
  • Pour the watermelon lemonade in a cup with ice.
    Optional: Garnish with lemon slices, watermelon cubes, or fresh mint.
    1 cup ice


  • Freshly squeezed lemon juice will have a brighter, better flavor. You can quickly squeeze lemons with a citrus juicer.
  • Skip the simple syrup for a less sweet drink.
  • The ice will melt and dilute the lemonade, so it enjoy it right away.
  • To pick the best watermelon for this recipe, go for one that has a large yellow sunspot. The larger the yellow spot, the sweeter the watermelon.
  • If you want to store the watermelon lemonade for later, keep it in the fridge without ice. Enjoy within 3 days and add ice just before drinking.


Calories: 99Carbohydrates: 26gProtein: 1gFat: 0.3gSaturated Fat: 0.03gPolyunsaturated Fat: 0.1gMonounsaturated Fat: 0.04gSodium: 22mgPotassium: 145mgFiber: 1gSugar: 23gVitamin A: 578IUVitamin C: 20mgCalcium: 21mgIron: 0.3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Tried this recipe?Mention @ohhowcivilized or tag #ohhowcivilized!

The Latest

Leave a comment

Your email address will not be published. Required fields are marked *