For a seafood meal right in the middle of Patong, compare Bubbles Restaurant at Grand Mercure Phuket Patong first. Set inside a hotel in central Patong, it's an easy stop before or after the festivities, with a seafood-led dinner BBQ as the draw. Check indoor versus outdoor seating and available booking times.
For a more formal evening, Blue Elephant Restaurant - Phuket is a great choice. This fine-dining restaurant serves authentic Thai cuisine inside a colonial-era Old Town building, with the neighborhood's own character as part of the experience.
For an easygoing meal, look at Set Lunch and Set Dinner at Three Monkeys Restaurant. It serves approachable Thai cooking in a relaxed indoor setting, suiting travelers who'd rather skip the formality.
For dinner with Andaman views from a clifftop, compare Set Menu at Sea Salt Lounge & Grill by Diamond Cliff Resort & Spa. It's a strong pick when the view and setting matter most, and the same resort's Afternoon Tea Set is a relaxed way to fill an afternoon between island days.
For a casual beach club meal, Set Menu at FUGA Beach Club by Diamond Cliff Resort & Spa fits well, with an open, easy-going mood at the resort's own beach club.
For a more local mood away from the tourist center, look at Set Menu at Kan Eang at Pier, a long-standing local seafood restaurant near Chalong Pier.
For one standout evening during the trip, [Royal Phuket Cruise] Sunset Dining Cruise is a great option, letting you enjoy an Andaman sunset and dinner aboard the boat.
Before booking, check indoor versus outdoor seating, what's included in the buffet or set menu, any dress code, and available booking times. Songkran combines international demand with Thai domestic holiday travel, so popular restaurants can book out first — use the current product details as the final reference.