So, to answer the big question: yes, refrigerate your watermelon, but only after you’ve cut it. Keep the whole one on the counter at room temperature until you’re ready to dive in. That way, you get the best of both worlds—maximum sweetness and maximum safety.
In the end, watermelon is less about rules and more about joy. Warm or cold, it’s a taste of lazy afternoons and sticky fingers. But if you want to make it last longer and taste better, give that cut melon a cool home in the fridge. Your future self will thank you with every sweet, cold bite.