Today's Surf Conditions at Grupuk
Spot Overview & Description
Outside Grupuk is a captivating reef break gracing Lombok’s southern coast, where the ocean puts on a show that’s equal parts promise and unpredictability. This right-hander peels over a live coral bottom, offering a smooth, racetrack-like ride when conditions align—but its fickle personality means you’ll need to read the room (and the charts) to unlock a truly memorable session. The vibe here is electric, especially when the swell lights up, drawing a lively crowd of regulars and travelers alike, all chasing that same willing right wall. The wave comes alive on any significant south swell, favoring a southwest or southeast push, and handles 3-foot (0.9-meter) waves with ease. But don’t let the modest stat line fool you—when the swell ticks up, it reveals a more serious character that rewards intermediate surfers with a no-nonsense, hollow-ish bowl. Beginners will find forgiving rides on smaller days, making it a great stepping stone. Tides play a key role: mid to high tide is your window for the best shape, while a dropping tide can expose shallow coral. Watch out for southern hemisphere winds—an onshore breeze from that quarter will chop the lineup within minutes, so chase those clean, groomed faces by paddling out when northwestern winds prevail. Crowds can stack up fast, especially when word spreads that Outside Grupuk is pumping. To snag some breathing room, study the tide and wind patterns diligently—a little local knowledge goes a long way. When the stars align, you’ll be treated to a rippable, playful right that keeps you guessing and grinning until the last wave. Show up ready, keep your eyes on the horizon, and this Lombok staple just might deliver one of your best sessions.
Best Surf Season & Climatology
Best Surf Season (December - March)
For a south-facing spot like Grupuk, the December to March monsoon window offers the most consistent surfable conditions. The northwest monsoon flow sets up offshore and cross-offshore winds from the NW through W, grooming the persistent SSW and SW groundswell that rolls out of the Indian Ocean. Average wave heights hover in the 4-5ft range with periods around 12-13s, enough for plenty of punch on the better sand and reef setups. Rain and tropical cloud are frequent, but the trade-off is clean shoulders rather than wind-blown walls.
Detailed Surf Information for Grupuk
Detailed Surf Forecast
Access our detailed 8-day swell and wind forecast charts for Grupuk with tidal graphs, period ranges, and daily forecast text summaries.
Swell & Wind Statistics
Explore historical swell consistency, wave heights, and offshore wind windows month-by-month, compiled from over 40 years of data.
Historical Surf Report
Browse the historical database archives to view past wave reports and understand spot climatology during specific years and months.




