Surf Forecasts:
Knights surf forecast from 3 Aug 2026:
- Best quality surf: Sunday 9 Aug, 9PM (local time) - 15ft (4.5m), 16s period, SW swell with cross-shore winds.
- Most powerful swell: Monday 10 Aug, 12AM (local time) - 15ft (4.5m), 17s period, SW swell with 11,889 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 6PM (local time) - 5.5ft (1.7m), 11s 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 Tuesday (Aug 04) at 6PM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.8m and 15s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Knights in the next 16 days are 4.5m 17s and forecast to arrive on Monday (Aug 10) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Saturday (Aug 08) at 6PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Tue 4th Aug) | 5.5ft (1.7m) 11s |
| Best Surf | 9PM (Sun 9th Aug) | 15ft (4.5m) 16s |
| Most Powerful | 12AM (Mon 10th Aug) | 15ft (4.5m) 17s |
Table - best surf conditions forecast for Knights over the next 16 days.
The Lowdown
Alright, Rusty here, checking out the forecast for Knights. The water temp is sitting at 58°F, which is right about average for this time of year, so nothing out of the ordinary.
The start of the week is a bit rough. Monday and Tuesday are looking average to poor, with a solid 7ft to 10ft SW swell, but the wind is cross-onshore, making it choppy and messy. The energy is pumped up, with readings up to 5249, but it’s not clean. Not worth getting wet for.
Wednesday morning, 5 August, is where we get a break. The wind shifts to a light offshore from the north, and the swell drops to a clean 5ft from the SSW with a long 14-second period. The energy is still solid at 1562, and it’s clean. This is a real gem for experienced surfers – the waves should have good shape, but the crowd report says "often," so you’ll have company. This is the best call early on.
Friday 7 August is another good one. The morning is clean with a light offshore, and the swell is a bit bigger at 6ft from the SSW with a 15-second period. The energy is strong at 2204. The afternoon stays clean with a cross-offshore wind. A solid day for advanced surfers.
The weekend gets rough. Saturday 8 August has a decent 5ft SSW swell, but a fresh 19 mph north wind makes it tricky. Sunday 9 August is a total write-off with 12ft SW swell and strong cross-onshore winds – lumpy and poor. Not for paddling, but if you're into kites, the setup might be interesting.
The second week is a mixed bag. Monday 10 August sees a massive 13ft SSW swell with a 16-second period, but the wind is cross-off and clean. However, at over 8ft, this is only for experts, and the energy is extreme at 8835. The break might be too big even for that. Tuesday 11 August is similar, with a 12ft SSW swell, but the wind is cross-shore, making it messy.
The best bet in the second week is Tuesday 18 August. The morning is glassy with a light wind from the WNW, and the swell is 7ft from the SW with a 16-second period. The energy is strong at 2632. The afternoon is also glassy, with a 8ft SW swell and energy at 3368. For a clean, powerful wave, that’s the one to aim for, but it’s a long-range call, so keep an eye on it.
Overall, Knights is a spot that can fire, but it’s often crowded and it’s fairly consistent. The early week and the middle of the second week are the times to get on it.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Mon morning, min 8°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Sat afternoon. Very mild (max 17°C on Fri morning, min 10°C on Thu night). Winds increasing (calm on Thu night, strong winds from the WSW by Sat night). | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
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) | SW 14 | SW 14 | SSW 13 | SSW 12 | SSW 11 | SSW 10 | SSW 14 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 17 | SSW 16 | SSW 15 | SW 14 | SW 11 | SW 13 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2265 | 3155 | 1850 | 1106 | 853 | 532 | 789 | 413 | 780 | 666 | 683 | 1206 | 1423 | 1238 | 1754 | 1289 | 1042 | 857 | 2679 | 4233 | 11889 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross-off | off | cross | cross-off | cross | on | glassy | off | cross-off | off | cross-off | cross-off | cross-off | cross-on | cross-on | cross |
High Tide | 3:01PM1.10m | 3:23AM0.95m | 3:16PM1.03m | 3:59AM1.01m | 3:20PM0.96m | 4:39AM1.06m | 2:51PM0.93m | 5:32AM1.07m | 11:20AM1.18m | 11:49AM1.29m | |||||||||||
Low Tide | 9:15PM0.45m | 8:43AM0.53m | 9:17PM0.47m | 9:14AM0.68m | 9:13PM0.48m | 9:28AM0.85m | 9:08PM0.47m | 8:35AM1.01m | 9:07PM0.45m | 9:11PM0.43m | 9:20PM0.42m | ||||||||||
 | |  |  | |  | | | | |  | | | | |  | |  |  | | | |
 | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — |
 | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 5 | 6 | 2 | — | — |
Temp °C | 13 | 13 | 11 | 12 | 12 | 10 | 12 | 13 | 12 | 15 | 14 | 12 | 17 | 17 | 16 | 10 | 11 | 13 | 13 | 13 | 12 |
Feels °C | 9 | 8 | 7 | 8 | 9 | 8 | 9 | 10 | 9 | 13 | 11 | 12 | 15 | 14 | 9 | 4 | 4 | 7 | 5 | 6 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SSW 13 | SSW 12 | SSW 11 | SSW 10 | SSW 14 | SSW 8 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 17 | SSW 16 | SSW 15 | SW 14 | SSW 16 | SW 13 | SW 17 |
| kJ | 2265 | 3155 | 1850 | 1106 | 853 | 532 | 789 | 115 | 780 | 666 | 683 | 1206 | 1423 | 1238 | 1754 | 1289 | 1042 | 857 | 347 | 4233 | 11889 |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 18 | SSW 16 | SSW 16 | SSW 20 | SSW 19 | SSW 14 | S 8 | S 8 | S 8 | SSW 18 | SW 19 | SSW 18 | — | — | — | SSW 18 | — | WSW 20 | — |
| kJ | — | — | 273 | 291 | 223 | 280 | 470 | 294 | 42 | 29 | 21 | 184 | 518 | 565 | — | — | — | 124 | — | 154 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 15 | SW 19 | SSW 18 | S 8 | S 9 | SSW 19 | SSW 8 | WSW 20 | SE 8 | — | — | — | N 5 | — | — | — |
| kJ | — | — | — | — | — | 45 | 303 | 413 | 42 | 7 | 37 | 19 | 253 | 2 | — | — | — | 8 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 14 | — | — | — | — | — | — | — | — | WNW 3 | — | SE 8 | ESE 8 | N 3 | NNE 3 | NNW 5 | W 5 | SW 11 | NW 5 | — |
| kJ | — | 2094 | — | — | — | — | — | — | — | — | 3 | — | 10 | 6 | 5 | 9 | 71 | 141 | 2679 | 73 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 570 | 578 | 137 | 137 | 157 | 0 | 0 | 1 | 0 | 1 | 157 | 0 | 0 | 0 | 0 | 518 | 518 | 755 | 404 | 591 | 2 |
Best forecast wave conditions in South Australia - East Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Knights surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest