Kailua Beach Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s break down what’s cooking for Kailua Beach over the next couple of weeks.

Right off the bat, I gotta be straight with you – the next week or so looks pretty grim. We’ve got a long stretch of messy, onshore wind that’s going to keep things bumpy and blown out. The swell is there, but it’s short-period, wind-driven stuff that’s going to be a fight. From Tuesday the 11th right through to Sunday the 16th of August, it’s all "poor surf conditions" with cross-onshore or onshore winds cranking at 15 to 25 mph. Swell heights hover around 5 ft to 8 ft, but with periods of only 6 to 8 seconds, it’s just a lumpy mess. The combined energy builds from 203 up to 1343 (moderate to strong), but don’t let that fool you – it’s not surfable energy, it’s just whitewater and chop. The water temp is about average for this time of year, nothing weird.

Now, look at the tail end of the first week. There’s a tiny glimmer of hope on Monday the 17th of August. Winds finally swing around to a cross-offshore from the SSE, and for the first time we see the word "clean" in the wind description. Swell is still a chunky 8 ft from the ENE, with a period of 10 to 11 seconds – that’s a proper groundswell, which can be a bit fat and straight for a beach break like Kailua, but the energy is real (1210 to 1392). This is not for beginners; 8 ft is borderline expert territory. The ratings are only a 1 or 2 out of 10, so it’s marginal. If you’re an experienced local looking for a challenge on the Monday morning before the afternoon winds pick up, it might be your only shot in the first 8 days.

Then we hit another dead zone. Tuesday the 18th through to the end of the forecast on Wednesday the 26th of August? It’s back to the same old story. Onshore and cross-onshore winds from the ENE and NE, 12 to 18 mph, with short-period swell (6 to 8 seconds) that’s chopped to bits. Swell heights range from 4 ft to 7 ft, but with these winds, it’s just not worth paddling out. The combined energy dips back to weak-to-moderate levels (138 to 435) for most of it, before kicking up again to strong (537) around the 23rd, but again, with onshore winds, it’s a kite-surfing show, not a surfing one.

So, the honest truth? There’s no standout day in this 16-day window. The only real chance to get a clean wave is that Monday morning (17th August) if you’re a competent surfer who can handle size and is willing to battle the risk of thunderstorms. After that, it’s a long stretch of mediocrity. Hang tight, check the forecasts, and maybe pick up a different hobby for a couple of weeks.

Rusty out.

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