Mix together all ingredients except the cilantro or parsley, the watermelon, peaches, onion, jalapeno, lime juice and zest and salt and pepper to taste.
Allow to sit, refrigerated, for 30 minutes if possible. Add the cilantro or parsley just before serving.
Note: if watermelon is very juicy, add it to a strainer for few minutes.
Keywords: Appetizer, Condiments, Hot Peppers, Jalapeno, Mango, Mexican or Southwestern, Nectarines, Peach Salsa, peaches, Salsa, Watermelon