Nias (Sorake)
Indonesia · Indo-Pacific
Right now
DrizzleWind and swell direction
Swell: 1.0m SSW
Wind: 2 km/h S (cross-onshore)
Beach faces: W
Very light wind. Expect glassy, clean conditions.
Swell is coming in at an oblique angle, some refraction expected.
Today hour by hour
Updated 10:15Expected crowds
Prediction model v16amDawn patrol territory
7amMidweek quiet
Next 7 days
Forecast via Open-MeteoWhat to pack
- Small waves expected. Longboard or fish to make the most of it.
- Boardshorts weather. 31°C water.
- Rain jacket for between sessions.
Today's briefing
1.0m swell at 10s. Moderate winds. Water temperature 31°C.
AI-generated summary for Nias (Sorake). Always check local reports before heading out.
Forecast accuracy at Nias (Sorake)
Not enough data yet. Log a session to help build the accuracy score.
Best time to go
No great windows in the next 2 days
Best available option is Today around 7pm (score: 36). Conditions are below the Good threshold but may still be surfable.
Crowd report
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Session journal
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Create free accountTide
Approximate modelBest on mid-high tide
Swell forecast
7-day forecastDaily score breakdown
This week is looking slightly above average for late April.
Comparing the 7-day forecast to the last 5 years of marine data for the same week at Nias (Sorake).
What's driving it
Recent form
Last 3 days of logged conditions.
About Nias (Sorake)
Sorake Bay on the island of Nias, Indonesia, hosts one of the most mechanically perfect right-hand reef breaks on the planet. The geomorphology features a long, uniform live coral reef shelf extending out from a deep-water channel. This specific bathymetric alignment perfectly captures deep-water south-westerly groundswells travelling uninhibited across the Indian Ocean. As the wave energy engages the shallow reef, it pitches abruptly into a highly cylindrical, perfectly peeling tube that reels flawlessly down the line. The bay frequently benefits from glassy, windless conditions, or light northerly offshores. Because the wave breaks with intense hydraulic power over extremely shallow, sharp coral, it is strictly suited for advanced and expert surfers. The take-off is remarkably concentrated and steep, thrusting the surfer immediately into a high-speed barrel section. It demands elite tube-riding proficiency and flawless positioning, offering an ultimate test of high-consequence wave navigation in pristine tropical water.
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Create Profile →Frequently asked questions
How often is this page updated?
Current conditions refresh every 6 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.
What is the luck factor?
We compare the 7-day forecast to the last 5 years of marine data for the same week at Nias (Sorake). The delta tells you whether conditions are shaping up better, worse, or about the same as a typical late April.
How is 'best session' picked?
We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.
Where does the data come from?
Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).
Does the score capture local knowledge?
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.
When is the best time to surf Nias (Sorake)?
Check our timing score heatmap above for a week-by-week breakdown combining surf conditions with crowd pressure.