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The second the temperature climbs above 90 degrees, I start craving one thing: watermelon. It’s juicy, refreshing, naturally sweet, and somehow makes even the hottest summer day feel a little more manageable.
This watermelon smoothie is my go-to when I want to cool off, stay full, and keep working toward my health goals without overthinking it. Blended with simple, nourishing ingredients, it tastes like a summer treat while still delivering the hydration, fiber, and protein. This is my favorite smoothie to make on repeat all summer long.
Table of Contents
Why You’ll Love It
Summer is overflowing with nutrient-dense produce. Take advantage of these ruby red, antioxidant-rich ingredients!
- Ready in 5 minutes. Toss everything in the blender, hit blend, and you’re sipping a refreshing smoothie in less time than it takes to slice the fruit. You can also check out my recommended smoothie blenders for the creamiest results.
- Hydrating and refreshing. Watermelon’s high water content helps support hydration, while lime adds a crisp, citrusy finish that keeps each sip light and energizing.
- Packed with real benefits. Strawberries and cherries bring fiber and antioxidants for heart and immune support, while watermelon delivers lycopene, a powerful antioxidant linked to heart health and cellular protection.
Watermelon Smoothie Ingredients
- Watermelon (fresh, chopped). Choose a heavy melon with a creamy yellow field spot for the sweetest flavor. Seedless makes prep quicker, but either works. This is how I cut melon.
- Strawberries (fresh or frozen). Look for bright red berries with green tops and no white shoulders. If using fresh, freeze extras at peak ripeness for future smoothies, or portion them into frozen meal prep smoothie packs so they’re ready to blend anytime.
- Cherries (fresh or frozen). Deep red cherries are usually the sweetest and richest in antioxidants. If buying fresh, pit and freeze them on a sheet pan so they’re ready to blend.
- Lime (fresh, peeled). Pick a lime that feels heavy for its size and has a slight give when squeezed. Lime adds a little zest and bite to make it extra refreshing.
- High-quality protein: Blend in chia seeds and collagen peptides for a protein boost along with some healthy omega-3’s and fiber to create a balanced smoothie.
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How to Make a Watermelon Smoothie
- Add ingredients to the blender. Place the chopped watermelon, frozen strawberries, frozen cherries, peeled lime, plant-based protein powder (if using), and chia seeds into a high-speed blender.
- Blend until smooth. Blend on high until the smoothie is completely smooth and creamy. Add a splash of water if needed to help it blend.
- Serve and enjoy. Pour into glasses and sprinkle extra chia seeds on top, if desired. Sip right away for the freshest flavor and best texture.
Want perfectly smooth results every time? Check out how to make a smoothie for simple blending tips before you start.
Recipe Tips
- Since watermelon is over 90% water by weight, you don’t need to add any extra liquid or ice to this smoothie.
- Use seedless watermelon for this recipe. No need to spend all day picking out watermelon seeds!
- Using frozen cherries and frozen strawberries rather than fresh ones yields a cool and frosty drink. If using fresh, add ice cubes to the blender.
- Serve this smoothie immediately after making it. The longer it sits, the more the watermelon separates from the other ingredients.
More Watermelon Smoothie Recipes
If you loved sipping my watermelon smoothie, then check out my favorite fruit smoothies and recipes with watermelon to cool down on a hot day:
- Strawberry Watermelon Smoothie that blends in spinach to get extra fiber.
- Watermelon Popsicles are such a simple summer win.
- Summer Melon Smoothie is a medley of summer melons and a hydrating sweet treat.
If you make this watermelon smoothie, I’d love to hear how it turned out in the comment box below. Your feedback helps me and all the readers in this community. And if you’re interested in more plant-based recipes (and exclusive content), sign up for my weekly recipe newsletter.
Watermelon Smoothie
Ingredients
- 2 cups watermelon chopped
- ½ cup cherries frozen
- ¼ cup strawberries frozen
- ½ lime peeled
- 2 tablespoon chia seeds
- 1 serving collagen peptides
Instructions
- Add watermelon, strawberries, cherries, lime and chia seeds to the blender.
- Blend on high speed until nice and smooth.
- Add a serving of collagen and blend on low speed until mixed in.
- Pour into cup and enjoy!
Video
Helpful Tools
Notes
- Use seedless watermelon if you don’t have time to pick out the seeds before blending.
- To lower the natural sugar, swap the cherries out for blueberries or raspberries, or add in homemade protein powder to help your body process the natural sugar.
- Feel free to add any of these low sugar fruits to change up the flavor and make it your own.
Nutrition
Did you make this recipe?
Leave a review for a chance to win signed copies of my cookbooks!My watermelon smoothie blends cherries, watermelon, strawberries and lime. It’s super refreshing and antioxidant-loaded!
Yes! When using any kind of melon in a smoothie, I cut back on the amount of liquid. Watermelon contains enough water on its own that you don’t need any more liquid. Also, don’t forget to remove the seeds!
Watermelon acts as both the liquid and fruit in a smoothie. If you freeze the watermelon, be sure to add extra liquid to help it blend well.
Delicious and refreshing is an understatement!
I’m so glad I signed up for this smoothie challenge (just now figured out where and how to post to participate). I’ve never had a smoothie without liquid or greens. I was a little nervous and had the water ready to add, but it wasn’t needed.
Great treat after my workout yesterday afternoon. This will definitely be on my regular rotation.
So glad you enjoyed this one!!!
Refreshing, easy & delishish! Great way to enjoy the warm afternoon out on the patio.
Watermelon was just the right sweetness & the lime balanced perfectly!
Definitely a great afternoon nutritious treat!
Love that this smoothie challenge encouraged me to try a watermelon smoothie. I’ve been struggling with always feeling dehydrated so watermelon was key. I’m allergic to cherries so swapped it for raspberries and used a bit of greek yogurt for some extra protein!
Way to make this work for you. So glad you tried the watermelon.
I loved it! Definitely left me full. It was sweet & delicious even though my watermelon wasn’t the nicest.
So glad you loved it!
I really like how fresh and bright this smoothie is. It was sweeter than I anticipated, and my lime was a large one – next time I will keep the size in mind and cut back accordingly. The watermelon added a fun summer flair. I usually don’t like chia seeds in my smoothies but didn’t notice them in this. Rock on!
Woohoo! So glad you loved it!
I am not certain if I posted my review in the right place yesterday but I did try the watermelon smoothie! I think if I were to make it again, I would try another melon and add protein powder like you suggested!
Let us know when you try it again. Watermelon is not everyone’s favorite.
Loved the test. Make sure to drink it soon as lime takes over if it sits too long
Great idea!
My kids and I didn’t care for this smoothie. It came out super sweet and unsatisfying. Next time, I would probably make some swaps to reduce the sweetness, possibly adding in some plain Greek yogurt to try to balance the flavors more.
Thank you for being honest. Let us know if you try it with the yogurt.
So refreshing, easy & tasty! Excellent recipe for a tailgating party blend!
Ooooh great idea!
Day 1 Smoothie Challenge-Hope I’m posting this in the correct place-Watermelon Smoothie Jun 22nd!
Love all the flavors coming together & the powerhouse chia seeds!! Wonderfully refreshing & I had all the ingredients except the watermelon on hand. Quick & easy smoothie & great for being out on the patio in sweltering heat!
Awesome!!!
I don’t like watermelon but it’s easy to swap with another fruit. Thanks for the basic recipe & motivation with this challenge!
You are so welcome!!!
Day 1 Smootie Challenge & I am loving this watermelon smoothie!! So easy, so refreshing & the only grocery item I needed was the watermelon! 5 stars!!
That is a win!!!
So very refreshing! Love love love this watermelon smoothie!!
Wooot!
Very delicious! I’m not familiar yet with all the pertinent information regarding collagen peptides so I added hemp seeds for extra protein and vitamins and it worked great! Definitely worth making again…
Perfect! So glad you liked it!
While I thought the combo was interesting, I don’t think I will put it on my rotation list. However, it was not necessarily the smoothie but just my dislike for watermelon! If I tried it again, I would definitely use another melon type and add in some protein powder to help sustain me a little longer. I had this for breakfast and was hungry after 2 hours.
Thanks for your feedback.
This smoothie was delicious! I really enjoyed how the flavor of the lime contributed to the smoothie as a whole, I will definitely make this one again!
Nice! So glad you liked it!
Is this where I comment to say I made the smoothie and get entered into the contest?
Yes.
Refreshing and light. The consistency isn’t my ideal for a smoothie, but I would make again to have on a hot summer day.
Thank you for giving your feedback!
Very refreshing smoothie after a run! The lime enhances the flavor.
So glad it was perfect for a post workout snack.
I made this for Day 1 of the Summer Smoothie Challenge. Watermelon is not a go-to fruit for me, but I liked it in this combination. Very bright flavors and refreshing for summertime.
So glad you liked the watermelon in a smoothie!