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Live conditions

Nihiwatu

Indonesia Β· Indo-Pacific

Updated 56 min ago
🌧️
Type:reef
Shelter:exposed
Difficulty:advanced
Tide:mid
Facing:SW

Forecast accuracy at Nihiwatu

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Best time to go

Today 8am-12pm

Clean cross-offshore winds, quiet before the morning rush, conditions building through the session

75
Chest to head highCross-offshoreQuiet
Today 4pm-7pm

Clean offshore winds, quiet evening session

Chest to head highOffshoreEmpty
73
Today 12pm-4pm

Clean offshore winds, uncrowded conditions

Chest to head highOffshoreQuiet
68

Crowd report

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Session journal

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Recent form

Last 18 days of logged conditions.

30-day average
4.6/10
Days firing
7
Score 6 or higher
Best day recently
8.6/10
30 Apr
Days logged
18

Spot guide

This guide was generated from conditions data. Know this spot? Submit your own tips below.

## The spot Nihiwatu (now Nihi Sumba) is a legendary left-hand reef break on the remote island of Sumba, Indonesia. The wave breaks over an extremely shallow volcanic coral shelf, producing fast, barreling lefts of extraordinary quality. Access was historically controlled by the adjacent luxury resort, making it one of surfing's most exclusive waves. The surrounding coastline is wild and undeveloped, with traditional Sumbanese villages and dense savannah providing a dramatically different landscape to typical Indonesian surf destinations. ## When it works South-westerly Indian Ocean groundswells from May through October deliver the goods. The wave needs 4ft-plus swell and handles up to 10ft. Easterly trade winds blow offshore during the dry season. The wave is tide-sensitive: mid-tide provides the safest barrel with adequate water over the reef. Low tide exposes the coral dangerously. ## Where to sit The take-off zone is concentrated on the outside reef ledge where the swell jacks abruptly from deep to shallow water. The barrel begins immediately from the drop. Position yourself on the boil at the reef edge. The deep-water channel provides entry and exit. ## Hazards Extremely shallow coral reef with severe laceration risk on any wipeout. The wave is fast, powerful, and breaks very close to the reef surface. Hold-downs drive you across sharp coral. The remote location means limited medical facilities. Infections develop rapidly from untreated cuts. ## Parking and access Access is via the Nihi Sumba resort or by boat from other accommodation on the island. Sumba is reached by flight from Bali to Tambolaka airport. The resort manages numbers in the water. Independent access requires local knowledge and boat hire. ## The crowd The controlled access keeps numbers very low (typically 5-10 surfers maximum). Guests at the resort have priority. The experience is as close to a private wave as exists in Indonesia. ## Local tips The wave is faster and shallower than it appears. A step-up board with extra speed handles the pace. Reef boots, helmet, and full first aid kit are non-negotiable. Mid-tide sessions only unless you have extensive shallow reef experience. Respect the Sumbanese culture; the island has deep traditional beliefs that should be honoured.

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Frequently asked questions

How often is this page updated?

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.

What is the luck factor?

We compare the 7-day forecast to the last 5 years of marine data for the same week at Nihiwatu. The delta tells you whether conditions are shaping up better, worse, or about the same as a typical late May.

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 Nihiwatu?

Check our timing score heatmap above for a week-by-week breakdown combining surf conditions with crowd pressure.