This watermelon rum punch is going to be your new favorite party drink. It combines the perfect flavors of watermelon, pineapple, and rum for a delicious and amazing treat.

One of my favorite things to create is poolside party cocktails. Something about making a big beautiful pitcher of drinks that all my friends can enjoy with me is so fun and exciting. This watermelon rum punch drink totally fits that bill. It comes together so simply but is so delicious.
What is Rum Punch
Recently some of my friends took a vacation in the Caribbean and they all came back obsessed with rum punch . They said that each restaurant they went to had a different spin on it.
Historically speaking, rum punch fits this old rhyme: “One of Sour, Two of Sweet, Three of Strong, Four of Weak.” One of sour is one part lime juice. Two of sweet is two parts sweetener. Three of strong is three parts rum, and four of weak is water.
This version of rum punch doesn’t fit the traditional rum punch recipe, but does have all the necessary parts: lime juice, watermelon, pineapple juice to sweeten things up, rum, and some soda which helps the juice sweeten things up and also thins things out a little.
Watermelon Rum Punch Ingredients
Here are the ingredients that make up the fruity rum punch drink. For the full recipe including all ingredients and their measurements, scroll to the recipe card at the bottom of the post.
- Cubed watermelon: If you buy a big seedless watermelon from the store, you will have no problem getting six cups out of there with leftovers to make pretty wedge garnishes. Two cups will stay cubed, and four cups will get blended and strained to be the juice added to the punch.
- Pineapple chunks in juice: You can find this by all of the canned fruit at your grocery store. You are going to add the entire thing to the punch.
- Lime juice: This is our sour! We need 1/4 cup of fresh lime juice, which is approximately two freshly squeezed limes. Tip: Buy four limes in case one or two aren’t juicy enough.
- Rum: A light, clear, or white rum is the first rum in this punch recipe, adding a clean and crisp flavor. Bacardi is a popular choice for its smoothness and versatility. You could also use a coconut rum like Malibu. My classic rum punch uses spiced rum, but I wouldn’t recommend that here.
- Lemon-lime soda: Thins out the punch. I’m talking Sprite, 7Up, or something in that family.

Variations
- Make it kid friendly. If you want to make this kid-friendly, serve the alcohol on the side for adults to add to their own cup of punch.
- Make it less sweet. If you try this and it is too sweet for your liking, replace one of the cups of soda with club soda.
- Add more rum. Love this, but want to add more rum? Go for it! You could even play around with add other flavors of rum such as citrus or coconut.
- Add some fruit. Want to jazz it up a little? Slice up some kiwi and mango to throw in there too!
Leftovers
Leftover rum punch should be stored in the refrigerator for up to four days in an airtight container. As with all recipes, use your best discretion.

If you make this great rum punch recipe for your party guests, make sure to leave me a comment letting me know what you think.
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Ingredients
- 6 cups cubed watermelon
- 20 ounces pineapple chunks in their juice
- 1/4 cup lime juice
- 1 cup white rum
- 2 cups lemon lime soda chilled
Instructions
- Blend together 4 cups of the watermelon and strain to make watermelon juice.
- In a large pitcher, stir together the watermelon juice, the juice from the can of pineapple, lime juice, and white rum.
- Stir in the 2 remaining cups of cubbed watermelon and the cubed pineapple. Refrigerate the pitcher for 1 hour. (Make sure the soda is also refrigerated at this time.)
- Add the 2 cups of soda just before serving.

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Watermelon Rum Punch
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Watermelon Rum Punch
Ingredients
- 6 cups cubed watermelon
- 20 ounces pineapple chunks in their juice
- 1/4 cup lime juice
- 1 cup white rum
- 2 cups lemon lime soda chilled
Instructions
- Blend together 4 cups of the watermelon and strain to make watermelon juice.
- In a large pitcher, stir together the watermelon juice, the juice from the can of pineapple, lime juice, and white rum.
- Stir in the 2 remaining cups of cubbed watermelon and the cubed pineapple. Refrigerate the pitcher for 1 hour. (Make sure the soda is also refrigerated at this time.)
- Add the 2 cups of soda just before serving.
Nutrition
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