Great — here are top beach wedding venues across Sri Lanka (grouped by region) with why couples choose them, practical notes (capacity / access / vibe), and the best season for each area. I’ve cited recent venue and travel sources so you can check details and contact the hotels for current availability and packages.

South & Galle coast (popular for dramatic sunsets, colonial charm)

• Jetwing Lighthouse (near Galle) — dramatic headland location with ocean lawns, colonial style event spaces; suitable for intimate to mid‑sized weddings and larger receptions. Easy drive from Galle; very photogenic rocky promontory. (marriage.market)
• The Fortress Resort & Spa (Koggala/Galle) — contemporary boutique luxury, multiple beachfront and lawn settings, great for stylish seaside ceremonies and photos. Short drive from Galle Fort. (marriage.market)
• KK Beach / boutique villas near Galle — small luxury hotels and private villas (ideal for intimate weddings or exclusive buyouts) offering direct beach access and personalized service. Great for couples wanting privacy and design-led settings. (thetimes.co.uk)

Weligama / Mirissa area (surfing, whale‑watching photo ops; relaxed luxury)

• Weligama Bay Marriott / boutique coastal villas — modern resorts with beach ceremony packages, good for medium to larger groups, spectacular ocean backdrops at sunset. Good choice if you want a contemporary resort feel near surf spots. (marriage.market)

Bentota & West Coast (convenient, resort‑heavy, family friendly)

• Jetwing Saman Villas (Bentota) — classic beachfront resort with purpose-built beach canopy and garden pavilions for ceremonies; established wedding packages and on‑site registration options. Very popular for traditional and western-style beach weddings. (jetwinghotels.com)
• Taj Bentota Resort & Spa (Bentota) — large beachfront property with extensive event spaces, polished service and those wide sandy beaches good for larger guest lists. (thetimes.co.uk)

South‑east & Tangalle (secluded, luxe private beaches)

• Anantara Tangalle Resort / Anantara Peace Haven (Tangalle area) — high-end private beach resorts with villas, secluded coastal lawns and concierge wedding planning. Favoured for privacy and luxury. (marriage.market)

East coast (Passikudah / Trincomalee — best in different season)

• Anantaya Resort & Spa / Passikudah and Kalkudah hotels — calm shallow waters and long crescents of sand ideal for daytime beach ceremonies; best for couples who want gentle sea conditions and snorkeling. Note: east coast is a different seasonality window. (thetimes.co.uk)

Heritage / design-led beachfront options

• Heritance Ahungalla (Ahungalla) — Geoffrey Bawa–inspired beachfront resort with refined architecture and expansive lawn/beach areas for ceremonies and receptions; classic choice for elegant beach weddings. (marriage.market)

Quick planning notes (important)

• Best months by coast: south & west coasts (Galle, Bentota, Mirissa, Tangalle) — November to April; east coast (Passikudah, Trincomalee) — May to October. Book early for November–March (peak season). (marriage.market)
• Airport access: Negombo/Bandaranaike (Colombo) is closest international hub; Negombo and Bentota are easiest for short transfers; Galle/Tangalle require longer transfers from Colombo or a domestic flight/transfer. (thetimes.co.uk)
• Packages & legal/registration: many large hotels (Jetwing, Taj, Anantara, Marriott) offer wedding packages that include on‑site registration, décor, photographers, traditional ceremonies and accommodation deals — request their wedding brochure for full pricing and what’s included. (jetwinghotels.com)

If you’d like, I can:

• Narrow these to a short list by budget (budget / mid / luxury) and guest count; or
• Pull current wedding packages and sample pricing from 3–4 specific hotels you like (I’ll fetch the latest details and contact info).