Boa is a quality right reef break on Rote Island that produces standout barrel sessions when conditions align. The key to scoring Boa is timing—it needs a specific combination of swell direction and tide to fire, making a local surf guide invaluable. When it's on, Boa delivers multiple barrel opportunities per wave, rivaling any right-hander in the eastern Indonesian archipelago.
Model forecast for swell, wind and tide.
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Water temp
28°C
Wetsuit
Boardshorts / Rashguard
Difficulty
6/10
Crowd level
4/10
Access: Fly via Kupang or ferry from Kupang
Boa is a reef break in Rote Island, Indonesia, that mostly breaks right.
Boa picks up swell from the S round to the SW, and it's best when it's coming straight out of the SSW. That's a tight window, so it needs the swell direction to line up. It starts working at around 1.2m and handles up to about 2.4m, with the sweet spot around 1.7 to 2.1m. Period matters too: aim for 14s or longer, as anything under 10s tends to be weak. These are the numbers our scoring uses, so treat them as a guide rather than a promise.
An ESE wind is dead offshore at Boa, and anything from the E round to the SE keeps it clean. The morning is typically the best window, roughly 6am to midday. Light winds from other directions can still be fine; strong offshores can make it hard to get into waves.
Boa is at its best around the low to mid tide, roughly 0.3m to 1.2m on the local chart.
The most reliable run of swell at Boa comes Apr to Oct. There's a second window in Nov to Mar too. Best Apr-Oct (dry season, SE trades offshore). Swells year-round but wet season brings onshore winds.
The water at Boa averages around 28°C, so boardshorts or a rashguard will do. It shifts a few degrees through the year, so check the season before you pack.
It's more of an intermediate wave, rated 6/10 for difficulty, so newer surfers are best off sticking to the smaller days. Expect a moderate crowd (4/10) when it's on. Things to watch for: sharp, shallow reef (booties help).
The nearest airport on our list is RTI, then it's roughly a 20-minute drive. Fly via Kupang or ferry from Kupang.
The closest breaks we track are Do'o (5.5 km), T-Land (19 km) and Suckies (22 km), handy when Boa isn't working. We track 4 spots around Rote Island in total. Fun fact: it's the most southerly break we track in Indonesia.
Peak: Apr-Oct
Secondary: Nov, Dec, Jan, Feb, Mar
Best Apr-Oct (dry season, SE trades offshore). Swells year-round but wet season brings onshore winds.
🌊 Rote Island right • Reef right • Tropical Indo
🌊 400m+ Indo left • Four named sections • Rote Island perfection
🌊 Rote outer reef right • Hollow barrels • T-Land companion