Here are top beachfront hotels in Sri Lanka, grouped by region with a short note on why each is recommended:

South & South‑West coast (Mirissa / Weligama / Galle / Koggala)

• Cape Weligama (Weligama) — cliff‑top villas, dramatic infinity pool and easy access to whale‑watching and surfing. (tripadvisor.com)
• Weligama Bay Marriott Resort & Spa (Weligama/Mirissa) — large beachfront resort with family facilities, surf access and multiple pools/spa. (marriott.com)
• Amanwella (Tangalle) — minimalist luxury, private‑feeling beach and an intimate, design‑led resort experience. (travelplusstyle.com)
• The Fortress Resort & Spa (Koggala, near Galle) — modern beachfront hotel with strong family amenities and easy access to Galle Fort. (oyster.com)
• KK Beach (near Galle / Ahangama) — small boutique art hotel with ocean‑facing suites for a design‑forward, intimate stay. (thetimes.co.uk)

Bentota & West coast (family friendly / easy from Colombo)

• Taj Bentota Resort & Spa (Bentota) — long-established beachfront resort, good family facilities and watersports on Bentota Beach. (booking.com)
• Cinnamon Bentota Beach — classic Geoffrey Bawa–designed hotel on Bentota’s sand (good for architecture and location). (en.wikipedia.org)

Tangalle & South‑east (quiet beaches, turtle nesting)

• Anantara Peace Haven Tangalle Resort — cliff and coconut‑grove resort popular for families, spa and turtle‑conservation activities. (thenationalnews.com)

East coast & surf (best May–Oct)

• Uga Jungle Beach / Jungle Beach by Uga Escapes (Trincomalee / Nilaveli) — jungle‑meets‑beach resort with great snorkeling, whale/dolphin excursions and relaxed atmosphere. (ugaescapes.com)
• Jetwing Surf / Hideaway and other Arugam Bay beachfront stays — surf‑town hotels and surf camps for the active/surfing crowd (Arugam Bay is Sri Lanka’s surf hub). (thehotelguru.com)

Colombo / near airport (convenient starts/ends)

• Galle Face Hotel (Colombo) — historic seafront landmark hotel right on Colombo’s Galle Face Green (good for a night near the city). (en.wikipedia.org)
• Sentido Heritance Negombo (Negombo) — modern beachfront option minutes from Bandaranaike International Airport (handy for arrivals/departures). (heritancehotels.com)

Quick planning tips

• Sri Lanka has two monsoon seasons: south/west coast (including Galle, Mirissa, Bentota, Tangalle) is best roughly November–April; the east coast (Trincomalee, Arugam Bay) is best roughly May–October. Plan regionally for the right season. (thetimes.co.uk)
• Beaches in Sri Lanka are public; many resorts have beach access but conditions (surf, currents) vary—check whether the stretch is safe for swimming on your dates. (See hotel pages/reviews for notes on surf and safety.) (tripadvisor.com)

If you’d like, I can:

• Narrow these to your travel dates, budget and travel style (family, honeymoon, surfing), or
• Check current prices/availability for 2–3 properties you’re most interested in.