Seychelles · Beach Intelligence · For the Traveller & Advisor

Every Seychelles beach is perfect — six months a year. The question is which six.

Issue № 12 · Autumn–Winter 2026/27 · 13-minute read

The Seychelles sells itself on beach photographs — and then quietly lets travellers discover that the same beach can be a calm turquoise pool in April and a seaweed-strewn surf break in August. Two trade winds rotate around the archipelago like clock hands, flipping the good coasts twice a year. No other factor — not the hotel, not the room category — decides the quality of a Seychelles trip as much as matching the coast to the month. This is the map.

The Verdict. May–October (southeast trades): book west- and north-facing coasts — Beau Vallon, Port Launay, northwest Mahé, north Praslin coves, La Digue's sheltered bays. November–April (northwest monsoon): the map flips — south and east coasts come into their own, while Praslin's Côte d'Or collects seaweed. April and November, the windless transition months, everything works at once — these are the two best beach months of the year, and the market prices only one of them.

01 — The machine behind the map

From May to early October the southeast trade winds blow cool and dry: lively seas on south- and east-facing shores, seaweed (harmless, natural — and unphotogenic) washing up on exposed coasts, most visibly on Praslin's southern beaches and Mahé's southwest. From November to April the northwest monsoon reverses the flow: warm, humid, calmer on the southern coasts, but bringing weed to Praslin's famous Côte d'Or and stronger currents to northwest Mahé. April and November are the pivots — no wind, 30-metre underwater visibility, every coast open. Three structural facts soften all of this: the coves of Mahé and La Digue are far less affected than Praslin's long open beaches; granite headlands mean a sheltered beach is rarely more than ten minutes away; and distances are trivial — a "wrong-coast" booking is a day-trip problem, not a ruined holiday.

Read this honestly. Wind and weed patterns are climatology, not a timetable. The month-by-month guidance below reflects the long-observed pattern as reported by operators, dive centres and local guides — in any given week, the ocean does what it does. The right way to use this report: pick the coast with two good months of margin, not the single perfect month.

02 — Mahé, coast by coast

North & northwest — the May–October winners

Beau Vallon: the island's most reliable all-rounder — a long, sheltered bay, swimmable year-round, best in SE-trade months; currents strengthen Oct–Apr. Base: STORY, Savoy.
Port Launay (Ephelia): marine-park cove, calm and shallow when the south runs surf — the family-safe default May–Oct.
Northolme headland: snorkelling off the rocks, sunset side.

South & west — the November–April winners

Petite Anse (Four Seasons, Baie Lazare): a protected granite cove that behaves when exposed beaches don't — one of Mahé's best swimming coves in calmer months.
Anse Intendance (Cheval Blanc): the postcard — wide, wild, reef-less; surf most of the year, strongest May–Oct. Spectacular to look at, serious to swim. Not a beginner's sea.
Anse Louis (MAIA): small, private-feeling, swimmable cove.

03 — Praslin, coast by coast

Côte d'Or / Anse Volbert (northeast): the island's resort beach — long, shallow, family-friendly — but the archipelago's most seaweed-prone famous beach: affected roughly December–February under the northwest monsoon (with year-to-year variation); clearest in the SE-trade season. Base: Paradise Sun, Le Duc, and — from autumn 2026 — La Réserve Private Homes on this coast. South and east coasts: the mirror image — weed risk shifts here May–October. Anse Lazio (northwest): the counter-proof that coves beat coasts: hemmed by granite, it stays swimmable and largely weed-free almost year-round — the single most reliable famous beach in the country. Anse Georgette (Lemuria): same granite-cove logic on the northwest tip; access controlled through the resort, which keeps it empty. The advisor's rule for Praslin: in NW-monsoon months, sleep anywhere but swim at Lazio and Georgette; in SE months, Côte d'Or is at its best.

04 — La Digue and the granite coves

Anse Source d'Argent: the most photographed beach on earth is a shallow lagoon behind a reef — wading-calm at high tide, knee-deep flats at low tide; swimming is lagoon-style, not ocean-style. The granite coves around it (Anse Pierrot, Anse aux Cèdres) rotate shelter with the wind. Grand Anse / Petite Anse / Anse Cocos (southeast coast): dramatic, powerful, beautiful — and dangerous in SE-trade swells; these are walking-and-photographing beaches most of the year, with natural rock pools at Cocos for safe bathing. Anse Severe (northwest): the island's easy swimming beach. La Digue's honest summary: come for the granite theatre, pick your swim cove by the wind, and never fight the east coast in July.

05 — The private and outer islands

Own-island resorts sell an underrated feature: multiple coasts in one address. North Island, Fregate, Zil Pasyon (Félicité), Platte and Desroches each hold beaches on several orientations — when the wind turns, the resort simply moves your day to the leeward side. This is the quiet mechanical advantage behind their pricing: they are the only inventory in the country that cannot be caught on the wrong coast. The Outer Islands (Issue № 10) follow their own calendar — expedition season runs October–April, when the Inner Islands' northwest coasts are at their liveliest.

06 — The month-by-month cheat sheet

Apr–Mayeverything works; visibility peaks
Jun–Augwest/north coasts; surf south
Sep–Octtransition begins; seas settle
Novsecond perfect month
Dec–Febsouth/east coasts; weed on Côte d'Or
Marwinds die; all coasts improving

07 — Final outlook

The Maldives asks you to choose a resort; the Seychelles asks you to choose a coast and a month — and rewards the traveller who does both. The two transition months, April and November, are the destination's best-kept pricing secret: every beach open, peak visibility, and only December-level demand at one of them. Choose the hub before the hotel (Issue № 03) — and the coast before the room.

Sources: SeyVillas coastal seaweed guidance; Expert Africa climate and seasonal seaweed notes; Go2Africa seasonal coastal guidance; Seychelles monsoon and trade-wind climatology as reported by local operators and dive centres; TIO Issue № 07 Seasonality & Booking Windows. Wind and seaweed patterns are long-observed tendencies, not guarantees — conditions vary year to year. Verified as of August 6, 2026.

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