Refresh post-workout or on a hot day in just minutes with this simple hydrating watermelon cucumber smoothie. The addition of lime juice and fresh mint will transport you to a tropical destination. Disclaimer: This post is sponsored by the National Watermelon Promotion Board. All opinions are our own.

Refreshing Watermelon Cucumber Smoothie

Smoothies are an easy way to get in nutrients in just minutes! There are so many different combinations you can use to create the perfect smoothie, and we really love this Watermelon Cucumber Smoothie. Especially post-workout or on a hot summer day. Did you know watermelon is 92% water? That makes it perfect for hydration! Pair that with another water-rich fruit (yep, like tomatoes, cucumbers are also technically a fruit!) and you have a match made in hydration heaven.

For more delicious flavor combinations featuring watermelon, check out this post.

Hydrating Watermelon Cucumber Smoothie

Here’s what you’ll need to make the perfect watermelon cucumber smoothie:

  • Frozen Watermelon: See below for tips on how to freeze your watermelon. No frozen watermelon on hand? Add 1/2 to 1 cup of ice to your blender.
  • Cucumber: Opt for a seedless cucumber for a smoother texture. Look for the long, skinny cucumbers wrapped in plastic.
  • Coconut water: You could use your favorite milk, juice or regular water in place of coconut water, but then you’d miss out on all that potassium, which helps your muscles work.
  • Fresh lime juice: Add more or less to your liking.
  • Mint: If you don’t have fresh mint on hand, you can skip but it does enhance the flavor of this smoothie.
Easy Watermelon Cucumber Smoothie

Add all your ingredients to the blender and blend until smooth! If you prefer a creamier smoothie, you can add in a banana (yay for more potassium!) or an avocado.

If you’re looking for other yummy smoothie combinations, here are a few of our favorites:

Best Watermelon Cucumber Smoothie

How to Freeze Watermelon:

  1. Chop watermelon into desired size. I like smaller 1 or 2-inch cubes for easy blending.
  2. Lay watermelon single layer on a baking sheet and place in freezer for 1-2 hours. Freezing individually will prevent the watermelon from clumping together.
  3. Once frozen, transfer to Ziplock freezer bag for storage.
Watermelon Cucumber Smoothie
Refreshing Watermelon Cucumber Smoothie pin

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Watermelon Cucumber Smoothie

Amanda Keefer
Refresh post-workout or on a hot day with this simple hydrating watermelon cucumber smoothie. The addition of coconut water, lime juice and fresh
mint will transport you to a tropical destination.

Prep Time 10 minutes
Total Time 10 minutes
Course Drinks
Servings 2 servings
Calories 44 kcal


  • 1 cups frozen watermelon
  • ½ cup chopped seedless cucumber
  • ½ cup coconut water
  • ½ lime juiced
  • 2-3 fresh mint leaves


  • Add watermelon, cucumbers, coconut water, lime juice and mint to blender. Blend until smooth.


  • If you prefer a creamy smoothie, add a banana before blending.
  • No frozen watermelon? Use fresh and add 1/2 – 1 cup of ice.


Calories: 44kcalCarbohydrates: 11gProtein: 1gFat: 1gSaturated Fat: 1gPolyunsaturated Fat: 1gMonounsaturated Fat: 1gSodium: 65mgPotassium: 296mgFiber: 2gSugar: 7gVitamin A: 511IUVitamin C: 14mgCalcium: 32mgIron: 1mg
Keyword cucumber, healthy drinks, hydration, smoothie, watermelon
Tried this recipe?Let us know how it was!