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Cool off with this refreshing 5-minute Watermelon Smoothie recipe! Made with juicy cubed watermelon and sweet honeydew melon, it is the ultimate thirst quencher for hot summer days.

overhead of watermelon smoothie in glasses

This recipe was written on August 11, 2022. It was updated with additional recipe information on August 9, 2024.

There is nothing more satisfying than a delicious, hydrating drink to refresh and rejuvenate you on a hot day! Watermelon smoothies offer a cool, fruity flavor and deliver a nourishing blend of nutrients to keep you feeling your best. This two-ingredient recipe is a harmonious blend of juicy watermelon and sweet honeydew melon. Each revitalizing sip features a natural sweetness and hydration that will recharge your energy and satisfy your taste buds. 

This easy watermelon smoothie recipe is a great way to use watermelon with a slightly grainy or fibrous texture, rather than the crisp and juicy texture we love for eating. Instead of throwing out watermelon with a less-than-ideal texture, freeze it and make an extra refreshing frozen watermelon smoothie! Reducing food waste while creating an irresistible summer drink is a win-win! 

For more refreshing drink recipes, try my Banana Cardamom Smoothie, Pineapple Skin Tea, or Banana Mocha Smoothie

overhead of watermelon smoothie ingredients

Ingredients

Watermelon: Choose a ripe watermelon with a firm, even texture and a deep, vibrant color. It should feel heavy for its size and have a slightly hollow sound when tapped. Select a seedless watermelon for convenience or deseed a seeded watermelon. 

Melon: Opt for a honeydew melon or canteloupe that is firm but slightly soft to the touch at the stem end and has a sweet, fruity aroma. Honeydew offers a smooth, milder sweet flavor, while cantaloupe provides a rich, more robust sweetness. Alternatively, use another type of melon, such as Juan Canary or Galia melon, if desired.

How to Make a Watermelon Smoothie

  • Combine ingredients. Add the cubed watermelon and melon to a high-speed blender. 
overhead of chopped melon in a blender
  • Blend. Cover and blend until smooth. Serve!
overhead of watermelon smoothie in a blender

Recipe Pro-Tips

  • Use a high-speed blender. A high-speed blender ensures the watermelon shake has a smooth, even consistency. If you don’t have one, blend the ingredients in small batches and consider straining the liquid if needed before serving. 
  • Use frozen fruit for a thicker texture. Freeze the watermelon and melon cubes before blending for a frostier, creamier texture without needing ice. 
  • Add a garnish. Garnish your glass with a slice of watermelon, melon, or lime for a visually appealing presentation. Or sprinkle a few pieces on the healthy watermelon smoothie for added texture and flavor. 
  • Serve chilled. For the best watermelon smoothie experience, serve in a chilled glass. You can also serve with frozen fruit, which act as flavorful ice cubes that enhance the flavor as they melt.

Recipe Variations

Below are optional variations you can make to this watermelon shake recipe to make it your own:

  • Vanilla Vegan Yogurt: Add ½ cup of vanilla vegan yogurt for an extra creamy texture and a subtle vanilla flavor. It enhances the smoothie’s richness and adds a slight tanginess. 
  • Lime Juice: Add the juice of ½ fresh lime for a refreshing, tangy kick. It brightens up the fruit flavors and adds a zesty contrast. 
  • Orange Juice: Add ¼-½ cup of fresh orange juice for a burst of citrusy sweetness and a boost of vitamin C. Adjust the amount based on your preference for sweetness and tartness. 
  • Mint: A handful of fresh mint leaves (about 6-8 leaves) adds a refreshing, tangy kick to watermelon smoothie recipes. Blend it with the fruit and garnish with extra leaves for a decorative touch. Basil is delicious too!!
  • Frozen Strawberries: Add ½-1 cup of frozen strawberries for a tasty strawberry watermelon smoothie. Or use frozen blueberries, raspberries, or a mix to give the smoothie a fruity tartness and extra thickness. This also helps keep the smoothie cold without needing ice.
  • Greens: Incorporate 1 cup of fresh spinach or 1 tablespoon of your favorite greens powder for an added nutritional boost. 
  • Protein Powder: Mix in 1 scoop of your favorite plant-based vanilla or unflavored protein powder to increase the smoothie’s protein content. This makes the smoothie more filling. 
  • Chia Seeds: Add 1 tablespoon of chia seeds to the smoothie to increase the protein and fiber content. This also contributes to hydration and makes a more filling drink. 
  • Sweetener: Add agave or maple syrup to taste to enhance the smoothie’s sweetness.
watermelon smoothie pouring into glass

Serving Suggestions

Enjoy this hydrating smoothie for breakfast, as a mid-day refresher, post-workout hydrator, or pair with some of our favorite recipes below for a brunch, light lunch, dinner, or snack spread:

Storage Directions

Smoothies with watermelon are best served right away so they maintain their texture and flavor. However, you can also make this recipe ahead of time if needed and store it in an airtight container in the refrigerator for up to 24 hours.

Frequently Asked Questions

What fruit goes well with this watermelon smoothie?

Several fruits pair well with the flavor of watermelon in a smoothie including melon, strawberries, mango, pineapple, peach, raspberries, blueberries, kiwi, lime juice, and apple. Feel free to experiment with adding different fruits with the watermelon in the smoothie to suit your taste!

Can I use frozen fruit instead of fresh?

Yes, you can use frozen fruit instead of fresh fruit in this recipe to create a thicker, frostier smoothie. It also eliminates the need for ice, which can dilute the flavor. Simply freeze the watermelon and melon before blending!

How can I make this smoothie sweeter?

Enhance the natural sweetness of this recipe by including agave nectar or maple syrup to taste.

Is this smoothie suitable for kids?

Yes! This smoothie is a great option for kids, as it is naturally sweetened and can be easily customized with additional fruits or ingredients to suit your needs and taste preferences.

More Fruity Drink Recipes

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Watermelon Smoothie

By: Jenné Claiborne
Quench your thirst with this refreshing Watermelon Smoothie! Made with two simple ingredients, this recipe is a summertime staple with plenty of customizable options to up the flavor and nutrition as desired.  
Prep Time: 5 minutes
Cook Time: 1 minute
Total Time: 6 minutes
Servings: 2

Ingredients 

  • 3 cups cubed watermelon
  • 2 cups cubed honeydew melon or cantaloupe, or another melon such as Juan canary melon
  • 6 large fresh mint and/or basil leaves, optional

Instructions 

  • Add the watermelon and melon to the blender. If you choose to add fresh mint or basil, blend it with the melon.
  • Cover and blend until smooth.

Notes

Storage Directions
Smoothies with watermelon and fresh fruit are best served right away so they maintain their texture and flavor. However, you can also make this recipe ahead of time if needed and store it in an airtight container in the refrigerator for up to 24 hours. 
Recipe Pro-Tips
  • Use a high-speed blender. A high-speed blender ensures the watermelon shake has a smooth, even consistency. If you don’t have one, blend the ingredients in small batches and consider straining the liquid if needed before serving. 
  • Use frozen fruit for a thicker texture. Freeze the watermelon and melon cubes before blending for a frostier, creamier texture without needing ice.
  • Serve chilled. For the best watermelon smoothie experience, serve in a chilled glass. You can also serve with frozen fruit, which act as flavorful ice cubes that enhance the flavor as they melt.
Like this recipe? Rate and comment below!

About Jenne

I’m a Georgia Peach living in Los Angeles (by way of NYC), with an insatiable love of sweet potatoes, travel, animals, and cooking. On Sweet Potato Soul you’ll discover hundreds of delicious and easy-to-make vegan recipes.

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7 Comments

  1. Jenne,
    I’m vegan as well and been exploring and experiencing delicious foods made by me and with the help of you . I will be making your vegan veggie salad TOnight! I saw a video of you making it and oh my gosh…. cannot wait. Hope to meet you one day on the next vegan cruise. My husband and I missed the last one.

  2. Hi jenne I have a question its more a fitness and nutrition let me just say that I’ve been plant based now for over 7 months and I love it and I workout 5 days a week but when becoming vegan I wanted to try a lot of junk food that I had never had before and and I gained about 5 pounds so I decided that I wanted to try some hard core workouts and I’ve been getting results I’ve already lost the five pounds but the portions on the work out plan are not much and I stay hungry most of the times and I wanted to know what you think about it the workout it’s called insanity max30 I’ve been adjusting most of the food to fit my plant based life style because the plan is very animal heavy but I don’t eat like that so I just wanted to know do I just keep follow the program the meals are counted in containers my plan its 3 veggies(x3-1cup) 2 fruits(x2-1cup) carbs(1/2cup x2) healthy fats1/4cup 2(tsp) nut butters 2 tbs for dressings or seeds based on my weight

    1. Hey Ashlie! If you eat more veggies, fruit, and other whole foods you’ll be good 🙂 Good luck!!