In a medium to large bowl, combine the diced mango, red onion, cucumber, cherry tomatoes, jalapeños, orange juice, lime juice, and cilantro. Mix to combine. Season to taste with salt and pepper.
If possible, allow the salsa to rest at room temperature (or in the fridge) for 20 to 30 minutes to allow the flavors to deepen.
Before serving, add the diced avocado and gently mix to combine, taking care to not smash the avocado. Taste for seasonings and adjust as needed.
