Sirombu
IntermediateSurf report
| Time | Surf | Swell | Wind | Tide |
|---|---|---|---|---|
| 6 AM | 1.1 m | 1.0m 10s S | 6 km/h cross | 0.6m |
| 9 AM | 1.0 m | 0.9m 10s S | 5 km/h on | 0.4m |
| 12 PM | 1.0 m | 0.9m 10s S | 3 km/h on | 0.1m |
| 3 PM | 1.0 m | 0.8m 9s S | 7 km/h cross | 0.4m |
| 6 PM | 0.9 m | 0.8m 9s S | 5 km/h cross | 0.9m |
| Time | Surf | Swell | Wind | Tide |
|---|---|---|---|---|
| 6 AM | 0.8 m | 0.7m 9s S | 4 km/h off | 0.5m |
| 9 AM | 0.8 m | 0.7m 9s S | 3 km/h off | 0.4m |
| 12 PM | 0.8 m | 0.7m 9s S | 4 km/h cross | 0.1m |
| 3 PM | 0.8 m | 0.6m 9s S | 4 km/h cross | 0.3m |
| 6 PM | 0.8 m | 0.6m 9s S | 8 km/h on | 0.8m |
| Time | Surf | Swell | Wind | Tide |
|---|---|---|---|---|
| 6 AM | 0.8 m | 0.5m 9s S | 3 km/h off | 0.4m |
| 9 AM | 0.8 m | 0.5m 9s S | 2 km/h on | 0.5m |
| 12 PM | 0.8 m | 0.5m 9s S | 2 km/h on | 0.2m |
| 3 PM | 0.8 m | 0.5m 12s SSW | 4 km/h cross | 0.2m |
| 6 PM | 0.8 m | 0.5m 13s SW | 6 km/h on | 0.7m |
| Time | Surf | Swell | Wind | Tide |
|---|---|---|---|---|
| 6 AM | 0.8 m | 0.6m 13s SW | 4 km/h cross | 0.3m |
| 9 AM | 0.9 m | 0.6m 13s SW | 6 km/h on | 0.4m |
| 12 PM | 0.8 m | 0.6m 13s SW | 10 km/h on | 0.3m |
| 3 PM | 0.8 m | 0.6m 13s SW | 6 km/h on | 0.2m |
| 6 PM | 0.8 m | 0.6m 12s SW | 7 km/h on | 0.5m |
Next 24 hours
Wind
Tide
7-day outlook
Best days Hourly detail
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| Time | Wave | Swell | Period | Wind | Tide |
|---|---|---|---|---|---|
| 6 AM | 1.1m | 1.0m S | 10s | 6 E cross | 0.6m |
| 7 AM | 1.0m | 1.0m S | 10s | 6 E cross | 0.6m |
| 8 AM | 1.0m | 0.9m S | 10s | 5 ESE cross | 0.5m |
| 9 AM | 1.0m | 0.9m S | 10s | 5 SE on | 0.4m |
| 10 AM | 1.0m | 0.9m S | 10s | 4 SSE on | 0.2m |
| 11 AM | 1.0m | 0.9m S | 10s | 2 SSW on | 0.1m |
| 12 PM | 1.0m | 0.9m S | 10s | 3 SW on | 0.1m |
| 1 PM | 1.0m | 0.9m S | 9s | 6 SW on | 0.1m |
| 2 PM | 1.0m | 0.9m S | 9s | 8 SW on | 0.2m |
| 3 PM | 1.0m | 0.8m S | 9s | 7 ESE cross | 0.4m |
| 4 PM | 0.9m | 0.8m S | 9s | 6 ENE cross | 0.6m |
| 5 PM | 0.9m | 0.8m S | 9s | 4 NE off | 0.8m |
| 6 PM | 0.9m | 0.8m S | 9s | 5 ENE cross | 0.9m |
| 7 PM | 0.9m | 0.8m S | 9s | 6 ENE cross | 0.9m |
| 8 PM | 0.9m | 0.8m S | 9s | 3 E cross | 0.9m |
| 9 PM | 0.9m | 0.8m S | 9s | 2 NNE off | 0.7m |
| 10 PM | 0.9m | 0.8m S | 9s | 5 NNE off | 0.5m |
| 11 PM | 0.9m | 0.8m S | 9s | 5 N off | 0.3m |
| 12 AM | 0.9m | 0.8m S | 9s | 5 NNE off | 0.2m |
| 1 AM | 0.9m | 0.7m S | 9s | 6 NE off | 0.1m |
| 2 AM | 0.9m | 0.7m S | 9s | 6 NE off | 0.1m |
| 3 AM | 0.9m | 0.7m S | 9s | 7 ENE cross | 0.2m |
| 4 AM | 0.9m | 0.7m S | 9s | 8 NE off | 0.3m |
| 5 AM | 0.9m | 0.7m S | 9s | 6 NE off | 0.4m |
About Sirombu
Sirombu is a mellower reef break on the west coast of Nias, offering fun, workable walls that suit intermediate surfers looking to build confidence on a reef. The wave breaks with reasonable consistency and gives riders plenty of room to practice turns and transitions. It's a good option when the bigger, more exposed breaks are maxing out.
Local knowledge
The reef is shallow at low tide and sharp enough to cause serious lacerations on a wipeout — booties are strongly recommended and reef shoes help on entry. Sea urchins colonise the shallower sections of the reef, so avoid touching the bottom or scrambling over exposed coral. A moderate rip runs along the channel on bigger swells; use it to paddle out but respect it when paddling back to the take-off zone.
Sirombu is a small fishing town on the northwest coast of Nias, reachable by road from Gunungsitoli (roughly 2–3 hours on the Trans-Nias highway). Park near the fishing harbour or the local warungs along the seafront. Paddle out via the channel on the right side of the break — avoid scrambling directly over the reef on entry and exit.
A versatile shortboard or a mid-length funboard (7'0–7'6) suits the workable, intermediate-friendly walls here on most swells. Step up to a slightly fuller shortboard with more volume when the swell pushes past 4–5 ft to hold a good line through the longer sections.
mellow — relaxed vibe.
Where to go now
Sirombu vs. nearby, live| Spot | Surf | Swell | Wind | Now |
|---|---|---|---|---|
| Sirombu this spot | 1.1m | 1.0m 10s | 6 cross | Good |
| 17 km away | 1.2m | 1.1m 10s | 4 cross | Good |
| Asu Best now 18 km away | 1.7m | 1.7m 10s | 6 cross | Good |
| 19 km away | 1.2m | 1.1m 10s | 6 cross | Good |
Community photos
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Surfing in Nias
Full Nias surf guide →Off the west coast of North Sumatra, Nias is one of Indonesia's true surf landmarks — home to Lagundri Bay, the right-hand point at the island's southern tip that put the country on the world surf map back in the 1970s. It's a place of pilgrimage, where a single peeling wall over coral has drawn travelling surfers for decades.
✈️Getting there
Most surfers fly into Binaka Airport (GNS) at Gunungsitoli in the north of Nias, usually via Medan (Kualanamu, KNO) on a short domestic hop with Wings Air or similar. From Bali or Jakarta you'll connect through Medan.
🛵Getting around
At Lagundri Bay everything is walkable — the losmen sit right along the point, and you can paddle out from the steps. Many guests don't need transport at all once settled.
🌤️Climate & season
Nias has a tropical equatorial climate — warm and humid year-round, with water temperatures sitting around 27–29°C, so boardshorts and a rash guard are plenty (boots for the reef, not warmth).