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Simeulue is an island off western Sumatra that has emerged as an alternative to the crowded Mentawai chain, offering high-quality reef breaks at a fraction of the cost and with a fraction of the crowd. The Peak is the island's signature wave: a symmetrical A-frame breaking over a flat coral and rock reef that produces a fast, hollow right and a longer, carving left. The island retains an untouched quality with traditional fishing communities and dense tropical vegetation right to the waterline.
The dry season from April through October delivers consistent south-westerly Indian Ocean groundswells. The wave activates on 3-4ft swells and handles up to 8ft before becoming too fast. North-easterly offshore winds are typical during the dry season mornings, providing clean conditions. The monsoon season (November-March) brings variable winds and less consistent swell.
The Peak breaks as an A-frame, so you can choose the right (shorter, hollower) or the left (longer, more workable). The take-off zone is centred over the shallowest section of the reef where both directions originate. Sit on the reef edge where the deep-water channel meets the platform. The right requires immediate commitment to the barrel; the left allows a beat before setting your line down the reef.
Live coral sits below the surface and falls result in cuts. The reef is shallower than it appears from the channel due to the water clarity. Currents can develop across the reef on bigger swells. Medical facilities on the island are extremely limited; the nearest hospital is on the Sumatran mainland, hours away by boat. Bring comprehensive first aid supplies and antibiotics for coral infections.
Simeulue is accessed by ferry from Singkil on the Sumatran mainland (6-8 hours) or by small plane from Medan. Basic guesthouses and surf lodges in the village near The Peak provide accommodation. The paddle-out from the beach to the reef takes 5-10 minutes via the channel. Motorbike rental is the standard transport around the island.
Simeulue receives far fewer visitors than the Mentawais, with 5-10 surfers in the water on a good day being typical. The local community is welcoming and the atmosphere is relaxed. The A-frame naturally splits the crowd between the two directions. The island's relatively difficult access keeps numbers low.
The right-hander at The Peak is shorter but significantly hollower than the left. If you want barrels, sit slightly deeper on the right side. If you want length and carving, favour the left. The reef is most forgiving on a mid to high incoming tide. Low tide exposes coral heads and the wave becomes dangerously shallow. Bring everything you need; supplies on the island are limited. A standard shortboard works well for the right, but a slightly longer board helps generate speed on the left.
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Based on historical weekly averages
Combining historical conditions with school holiday crowd pressure to find the sweet spot.
How busy each week is based on school holiday overlap from feeder markets.
The timing score combines two signals: historical conditions quality (how good the skiing or surfing typically is in a given week, based on 5 years of weather data) and crowd pressure (how many of this destination's feeder markets have school holidays that week).
Crowd pressure is weighted by each feeder country's share of visitors. If 40% of a resort's visitors come from France and France is on holiday, that contributes 0.40 to the crowd pressure score. Crowds can reduce the timing score by up to 35%, ensuring conditions still matter most.
Scores: 5 = great conditions with low crowds (the sweet spot). 4 = great conditions with moderate crowds, or good conditions with low crowds. 3 = average. 2 = below average conditions or very crowded. 1 = poor conditions or peak holiday chaos.
Last 29 days of logged conditions.
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Create Profile →Current conditions refresh every 3 hours when the cron runs. Hourly data updates every 30 minutes. The 7-day forecast, luck factor, and packing notes are all pre-computed at the same time.
We compare the 7-day forecast to the last 5 years of marine data for the same week at Simeulue. The delta tells you whether conditions are shaping up better, worse, or about the same as a typical mid-June.
We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.
Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).
Honestly, no. Every break has tide windows, swell directions and reef contours that a global model cannot see. Treat the score as a starting point, then check a local cam.
The best week for surf at Simeulue is the week of 30 November (score 3/5) with low crowds.
Next to nothing in the water. Check back tomorrow. Reasonable period putting some grunt behind each wave. Light offshore grooming the faces nicely. Conditions improving through the afternoon.
Heads up: thunderstorms forecast, and jellyfish: peak season.
Indicators derived from forecast data, not official warnings. Always check local lifeguard or official advice.
Crystal clear water: ~21m visibility
Daily scores over the last 12 months at Simeulue