Nusa dua Surf Forecast and Surf Report

Alright, Rusty here. Let’s break down what’s happening at Nusa Dua over the next couple of weeks.

To be honest, the forecast is a tough one. There’s plenty of swell—big, strong groundswell lining up from the SSW, with combined wave energy readings up over 4700. But nearly every day is hit by a persistent cross-onshore wind that’s churning the surface into a choppy mess.

The first real pulse comes Monday, August 10th. Nusa Dua sees a solid 6ft SSW groundswell with a long 19-second period—that’s proper energy (combined energy of 3381). But that wind is cross-onshore from the SE at 12 mph, so the surface is gonna be messy. By the afternoon, the swell jumps to 10ft with 18-second period and 4753 combined energy, but the same wind ruins the quality. That’s only for the experienced crew, and even then, the waves will be lumpy.

Tuesday, August 11th, keeps the same theme: 10ft SSW swell, 16-17 second period, but still cross-onshore at 9-12 mph. The morning might be a touch lighter, but it’s still fairly choppy. A day for big-wave hunters who don’t mind the bumps.

From Wednesday the 12th through the 16th, it’s more of the same. Solid 7ft to 8ft SSW swell with plenty of period and combined energy in the 2000-3700 range, but every session is crossed up by onshore winds. A few morning windows might look marginally better, but the surface is just poor.

We hit a lull from Monday, August 17th into the following week. Swell drops back to 4ft to 6ft, but the wind stays stubbornly cross-onshore. The combined energy falls way off, too, down into the 900-1500 range. Nothing to get excited about here.

The best chance for a decent wave looks like Monday, August 24th. The swell is 8ft from the SSW at 16 seconds, but what’s different is the wind briefly goes light—9 mph—and even turns “on” (offshore) for the afternoon. That could clean things up and make Nusa Dua look a whole lot more inviting. Combined energy sits at 2509 for the afternoon session, which is moderate-to-strong. This is the standout window: a rare day when the wind might actually play nice.

Water temp is about 80°F, right where it should be for this time of year.

Overall, the 16-day window is a long stretch of blown-out, cross-onshore slop, with just that one Monday, August 24th offering a real glimmer of hope for clean, solid surf at Nusa Dua. If you’re a paddle surfer, you’ll be waiting for that afternoon window. Until then, the conditions might honestly look more like a kite surfer’s playground than a surfer’s dream.

Rusty.

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