Watermelon salsa fresca

Totally got this from Lydia at the Perfect Pantry. (One of my favorite blogs--www.theperfectpantry.com.) It's a great recipe and everything except the mango is available now at my local farmer's market. I changed one thing by substituting sea salt for the kosher salt. I served it with a simple grilled chicken. It's delicious, fresh, and beautiful. Thanks, Lydia!

Watermelon, mango, and tomato salsa fresca

1 cup watermelon, diced
1 mango, diced
1/2 cup ripe tomato, seeded and diced

1/2 cup seedless (English) cucumber, diced
1 jalapeño pepper, seeds and ribs removed, minced
Juice of 1/2 lime (or more to taste)
Sea salt to taste

Combine all ingredients in a mixing bowl. Chill until ready to use.