Crowd & Localism
Rarely crowded, partly by design, low consistency and a demanding skill threshold keep the lineup thin. Expert-only conditions do the filtering naturally. Respect the remote setting and the reef.
Kabupaten Sumba Timur, East Nusa Tenggara, Indonesia
Five-O
-10.259, 120.591
Edited by Tom Jackson
Verified May 2026
Cross-referencedCross-checked against Stormrider
At a glance
- Five-O is a left over reef, heavy hollow reef barrel, tide-dependent.
- Suits advanced surfers, working 3-10 ft.
- Peak May to September.
Left · ReefAdvanced3–10 ftMay – Sep
Five-O detonates over a submerged reef bend on the south coast of Sumba, East Nusa Tenggara, throwing heavy lips and proper shacks for surfers willing to gamble on the right conditions. It needs S to W swell in the 3-10ft range, NE offshore winds, and critically, high tide only, at lower water the reef becomes an unworkable hazard. Consistency is low, so expect to combine a visit here with nearby Sumba alternatives rather than basing an entire trip around it. Skilled surfers who time it correctly get barreling sections over the submerged reef with 100-200m of potential ride length when everything clicks. Bottom: submerged reef. Season: austral winter south swells, May through September. Consistency: low. Pack a step-up and check the tide chart before paddling out, a missed high-tide window means sitting on dry reef waiting hours for another shot.
Wave fit
Skill suited
Advanced
BegIntAdv
Best months
May – Sep
J
F
M
A
M
J
J
A
S
O
N
D
Character
Heavy hollow reef barrel, tide-dependent.
Conditions
When it worksSwell window
S
S - W
Offshore wind
NE
North easterly
Optimum tide
High tide only
Size range
3-10ft
Low
Hazards
No concerns
Trip planning
Quick facts
Wetsuit
Boardies
What to bring
- Step-up 6ft 4in to 7ft for solid swell days
- Shortboard 6ft to 6ft 2in on the smaller end of the range
Lineup
Mellow lineup
Where it sits
Location
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About this break
What it's actually like
Access & Facilities
No parking facilities and no amenities on-site. Sumba's surf zones require forward planning: bring water, food, and first aid. The nearest access hub is Waingapu, roughly a long drive away. This is a self-sufficient operation.
Nearby Alternatives
When Five-O isn't firing, Miller's Rights at Tarimbang (about 3 hours from Waingapu) are Sumba's most consistently ridden wave. Pero Lefts offer heavy bowl sections with genuine tube time, and Wainukaka rivermouth mixes fast, hollow, and fat sections in a single ride.
10-day swell, wind and tide
Five-O surf forecast
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Forecast by Windy.app
Stay nearby
Camps within boat range
Browse all Indonesia surf camps
No vetted camps within boat range of Five-O yet.
More breaks in East Nusa Tenggara
If this isn't your wave
Pero Rights
short hollow right-hand submerged reef · Right · Reef
Advanced
Wainukaka
fast hollow left-hand reef with occasional barrels · Left · Reef
Intermediate → Advanced
Pero Lefts
long walling left-hand reef with tube sections · Left · Reef
Advanced
Racetrack - Sumba
fast hollow reef with close-out barrel sections · Right · Reef
Advanced
Nihiwatu
fast hollow restricted left-hand reef · Left · Reef
Intermediate → Advanced
Mangkudu Lefts
shifting peaks on massive fringing reef, critical at size · Left · Reef
Intermediate → Advanced
Plan a trip
Build a trip around Five-O
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Frequently asked
What you need to know before paddling out at Five-O
What skill level is Five-O suited for?
Five-O is a reef bottom, heavy hollow reef barrel, tide-dependent, break suited for advanced surfers. This is not a beginner break. Build up at softer waves first.
What size does Five-O work best at?
Working size is 3 to 10 ft. Below 3 ft the swell goes flat. Above 10 ft it gets heavy and the lineup thins out.
When is the best season to surf Five-O?
Five-O fires from May through September. Outside that window the swell window narrows and the lineup goes quiet.
What swell direction does Five-O need?
Five-O switches on with a s - w groundswell. Offshore winds blow from the north easterly.
What are the main hazards at Five-O?
Main hazards at Five-O: no concerns. Reef booties are common kit.
What type of wave is Five-O?
Five-O is a left-breaking wave over reef. Heavy hollow reef barrel, tide-dependent.
Sources
- Stormrider
Five-O
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