Knights Surf Forecast and Surf Report

G’day, Rusty here. Let’s look at what’s coming for Knights (beach and reef). There’s a bit of a dry spell to start, but the back half of the 16-day window fires up. Water temp is about 58°F, right on average for this time of year.

Now through Thursday August 17th: Nothing worth paddling out for Monday. Morning has a 4ft SSW swell with a very long 16-second period, moderate cross-off wind, and combined energy at 1140 (moderate)—but the report calls it marginal. Skip it. Monday afternoon swells to 6ft, same direction and period, energy 1637 (strong), still marginal and not clean enough.

Tuesday August 18th – Wednesday August 19th: Tuesday morning brings a 4ft SSW swell, 17-second period (very long groundswell), and a moderate offshore breeze—clean and inviting. Combined energy is 995 (moderate). The comment reads “expect very good surf conditions.” This is your early standout: offshore wind, long-period swell, and tidy waves. That long period can make a beach break a bit straight, but the reef at Knights should help. Tuesday afternoon is even cleaner: 3ft SSW, 17 seconds, light offshore from N at 9 mph, energy 755 (moderate). Tuesday is the pick. Wednesday drops to 3ft and goes cross-shore and choppy—avoid.

Thursday August 20th – Saturday August 29th: A long gap of average to poor conditions. Thursday and Friday see SW swell building to 7ft, but the wind turns cross-on or cross, with energy up to 2879 (strong) on Friday—marginal and rippled. Saturday August 22nd holds 7–7ft SSW swell (strong energy at 2492), but cross and cross-on winds make it look better for kite surfing than paddle surfing. Then a lull sets in from Sunday August 23rd through late in the week—size drops, onshore winds, poor conditions.

Sunday August 27th – Late month: Things clean up. Thursday August 27th morning offers a 5ft SSW swell with 17-second period, gentle cross-off breeze from NE at 9 mph, energy 1546 (strong). Good session for advanced surfers—too big for beginners. Friday August 28th and Saturday August 29th keep 5–6ft SSW swells, gentle cross-off winds, and clean conditions. Energy stays strong (up to 1989). Solid long-range prospects, but less certain.

Monday August 31st – Tuesday September 1st: A ripper to finish. Monday morning has a 7ft SW swell, 13-second period, with a light offshore from NNE at 9 mph—clean and powerful. Combined energy is 1548 (strong). That’s expert territory at 7ft, but for those who can handle it, it’ll be excellent. Monday afternoon stays similar at 6ft. Tuesday drops to a 3ft SSW swell with cross-off wind, but marginal.

The standout: Tuesday August 18th (morning and afternoon) gives you clean offshore winds and a long-period SSW groundswell—smooth, energetic, and not too big. Then Monday August 31st offers a bigger, expert-level session with clean offshore winds.

Crowds at Knights are often, so expect company on those good days. For now, hold tight. Forecasts can shift, but this window has two clear highlights.

Rusty.

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