Great — here are highly recommended places to stay along Sri Lanka’s South Coast, arranged by town/area and travel style so you can pick what fits you best. I included a short note on why each is popular (location, vibe or standout feature). If you want prices, availability for specific dates, or a shorter shortlist for romance/family/surfing/budget, I can check that next.

Galle / Unawatuna area

• Amangalla (inside Galle Fort) — heritage, exceptional service and a peaceful, luxury stay right in the Fort (great if you want culture + easy access to restaurants/shops). (brandradar.org)
• Jetwing Lighthouse (near Galle) — iconic coastal hotel, good for families and reliable resort facilities close to Galle attractions. (brandradar.org)
• KK Beach (near Galle) — small boutique beachfront hotel with contemporary design and ocean views, good for couples wanting a modern boutique vibe. (thetimes.co.uk)

Weligama / Mirissa (surfing, whale-watching, lively beach scene)

• Cape Weligama — cliff-top Relais & Châteaux resort with dramatic ocean views and large villas/suites; excellent for romantic, upscale stays and sunsets. (brandradar.org)
• Boutique guesthouses and surf-side hotels in Weligama / Mirissa — excellent mid-range and budget options if you want surf/whale-watching bases; book early in high season (Dec–Apr). (brandradar.org)

Koggala / Habaraduwa (close to Galle, easy mix of beach + Fort)

• The Fortress Resort & Spa (Koggala) — modern luxury beachfront resort with strong dining & spa offerings; good for couples and families who want resort amenities near Galle. (en.wikipedia.org)

Tangalle / Mawella (quieter beaches, seclusion)

• Amanwella (Tangalle) — ultra-luxury, minimalist resort on a quiet crescent beach with private pools in suites; top choice for privacy and design-led luxury. (brandradar.org)
• Anantara Peace Haven Tangalle — larger luxury resort on a rocky headland offering spa/Ayurveda and family-friendly facilities; good if you want full-resort services and activities. (brandradar.org)

Bentota / South‑West (if you’re combining south and southwest coast)

• Saman Villas (Bentota) — an early boutique classic with villas and private-pool options; great for a stylish, tranquil beachfront stay. (en.wikipedia.org)

If you want:

• A 1–3 hotel shortlist matched to your travel style (romance, family, surf, wildlife), or
• Current availability and typical nightly rates for a set date range,

tell me your travel style and dates and I’ll check live availability and price comparisons.