
Surf Forecasts:
Knights surf forecast from 29 Jul 2026:
- Best quality surf: Thursday 30 Jul, 9PM (local time) - 5.5ft (1.7m), 12s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 1 Aug, 6PM (local time) - 7ft (2.2m), 16s period, SSW swell with 2,669 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 9PM (local time) - 5.5ft (1.7m), 12s period with SSW swell.
Best Forecast Surf Conditions for Knights this week:
The surf forecast for Knights over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 30) at 9PM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 0.8m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Knights in the next 16 days are 2.2m 16s and forecast to arrive on Saturday (Aug 01) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Sunday (Aug 02) at 12PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 30th Jul) | 5.5ft (1.7m) 12s |
| Best Surf | 9PM (Thu 30th Jul) | 5.5ft (1.7m) 12s |
| Most Powerful | 6PM (Sat 1st Aug) | 7ft (2.2m) 16s |
Table - best surf conditions forecast for Knights over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for the Knights stretch, a beach and reef setup that takes exposure from the SSE and really wants the swell out of the SSE to line up.
Kicking things off, we’ve got some swell in the water right from Thursday the 30th of July, but don’t get too keen just yet. That first day is a bit marginal with a cross-on wind and a combined energy of 1872, meaning there’s moderate wave energy around, but the wind is messy. It’s not really game on until Friday morning.
Friday the 31st is where we start to see the clean-up. A nice NE offshore breeze, 5ft of SSW swell with a 12-second period – that’s proper groundswell energy. The energy drops to 729, but the conditions are clean. It’s a solid option for the advanced crew, but it's not the standout.
Now, Saturday the 1st of August is the one to circle. We’ve got a clear sky, a firm N offshore breeze at 9 mph, and the swell bumps up to 6ft from the SSW, with a very long period of 17 seconds. The combined energy jumps to 1905 – that’s proper grunt. This is quality groundswell, and with that offshore wind, it’s going to be clean and lined up. The water temp is sitting at 58°, which is about average for this time of year. Keep in mind, this break can get crowded, so get in early. This is the best on offer in the first week.
Sunday the 2nd still has size but the wind swings NNW and gets up to 19 mph, creating a cross-off breeze. The energy stays strong at 1415, but that wind strength will make it a handful. Monday the 3rd and Tuesday the 4th are write-offs with onshore wind and messy conditions – a real low point.
Then we hit Wednesday the 5th of August. This is a sneaky one. 3ft of SSW swell but with a very long period of 19 seconds and glassy conditions in the morning with a NNW cross-off breeze. The energy figure of 1331 shows there’s still plenty of push for the size. At just 3ft, it’s not big, but that period will make it fun and clean. This is a great window for the experienced surfer who knows how to milk a long-period groundswell.
Thursday the 6th continues the good run with 5ft from the SSW, 16-second period, and a clean NE offshore breeze. Energy sits at 1633. Another top morning session.
Friday the 7th of August brings the biggest swell of the first two weeks: 8ft from the SSW, 15-second period, and a solid NE offshore at 9 mph. The energy reading hits 2625 – that’s strong. This one is for the experts only; size and power are on offer.
After that, things get a bit patchy. Saturday the 8th and Sunday the 9th stay rideable with offshore breezes, but the wind picks up. Sunday afternoon sees a massive 12ft SSW groundswell predicted with an energy reading of 5004, but the WNW wind is a cross-off at 19 mph. That much size with that much period (15s) and wind will be a beast.
Monday the 10th and Tuesday the 11th are blown out with onshore winds and huge, messy swell. Not worth paddling out. Wednesday the 12th through to Friday the 14th are mostly marred by cross and cross-on winds and dropping conditions.
If I had to call it, Saturday the 1st of August is your top pick. Clean, offshore, strong groundswell, and that very long period will link up nicely. Friday the 7th is for the big-wave hunters only. Get on it.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 14°C on Sat morning, min 10°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sun afternoon. Very mild (max 13°C on Sun morning, min 9°C on Tue night). Winds decreasing (fresh winds from the NW on Sun morning, calm by Tue night). | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 13 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 11 | SSW 12 | SSW 11 | SSW 20 | SSW 19 | SSW 18 | SSW 17 |
Wave Graph | |||||||||||||||||||||
1872 | 1365 | 751 | 636 | 579 | 587 | 1900 | 2551 | 2402 | 1415 | 1447 | 1191 | 1370 | 2178 | 991 | 923 | 593 | 364 | 750 | 644 | 1274 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | off | cross-off | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | on | on | on | glassy | cross-off | on | cross-off |
High Tide | 1:32PM1.31m | 1:32AM0.66m | 1:55PM1.27m | 1:56AM0.71m | 2:19PM1.22m | 2:23AM0.78m | 2:41PM1.16m | 2:51AM0.86m | 3:01PM1.10m | 3:23AM0.95m | 3:16PM1.03m | 3:59AM1.01m | 3:20PM0.96m | ||||||||
Low Tide | 9:01PM0.43m | 6:21AM0.31m | 9:01PM0.41m | 6:58AM0.30m | 9:05PM0.41m | 7:33AM0.33m | 9:11PM0.43m | 8:09AM0.41m | 9:15PM0.45m | 8:43AM0.53m | 9:17PM0.47m | 9:14AM0.68m | 9:13PM0.48m | ||||||||
7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | |
— | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 13 | 13 | 12 | 14 | 14 | 12 | 13 | 11 | 11 | 13 | 12 | 11 | 12 | 11 | 11 | 12 | 12 | 10 |
Feels °C | 10 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 5 | 6 | 7 | 7 | 6 | 7 | 9 | 8 | 9 | 9 | 9 | 7 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 13 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 11 | SSW 12 | SSW 11 | S 9 | SSW 14 | SW 13 | SSW 17 |
1872 | 1365 | 751 | 636 | 579 | 587 | 1900 | 2551 | 2402 | 1415 | 1447 | 1191 | 1370 | 2178 | 991 | 923 | 593 | 199 | 515 | 406 | 1274 | |
Swell 2 Height (m) Direction Period (s) | — | S 10 | S 9 | S 8 | SSW 20 | SSW 18 | SSE 7 | — | — | — | — | SW 18 | SSW 19 | — | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 19 | SSW 18 | SSW 7 |
— | 235 | 81 | 48 | 336 | 404 | 5 | — | — | — | — | 80 | 37 | — | 373 | 226 | 263 | 275 | 750 | 644 | 18 | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 23 | SSW 21 | SSE 8 | SE 6 | — | — | — | — | — | WSW 18 | — | — | SSW 18 | SSW 16 | SW 22 | SSW 20 | S 8 | S 8 | S 9 |
— | — | 21 | 45 | 21 | 11 | — | — | — | — | — | 276 | — | — | 273 | 334 | 118 | 364 | 66 | 46 | 2 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NNE 3 | — | N 4 | NW 4 | W 5 | SW 6 | SW 6 | — | — | — | — | NE 2 | NNE 3 | NNW 3 | NW 3 |
— | — | — | — | — | — | 3 | — | 12 | 24 | 60 | 39 | 80 | — | — | — | — | 1 | 5 | 8 | 6 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 137 | 137 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 502 | 2 | 404 | 578 | 651 | 137 | 137 | 22 | 0 | 0 | 3 | 0 |
Best forecast wave conditions in South Australia - East Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Knights Surf forecast
The above surf forecast table for Knights provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Knights can be found by selecting the local surf guide option on the grey menu. Our Knights surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Knights) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Knights may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.










