Surf Forecasts:
Knights surf forecast from 7 Aug 2026:
- Best quality surf: Monday 10 Aug, 6AM (local time) - 13ft (4.0m), 19s period, SW swell with cross-onshore winds.
- Most powerful swell: Wednesday 12 Aug, 6PM (local time) - 16ft (5.0m), 16s period, SW swell with 11,570 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 9PM (local time) - 6ft (1.8m), 17s 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 Friday (Aug 07) at 9PM. The primary swell is predicted to be 1.8m and 17s period with a secondary swell of 0.4m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Knights in the next 16 days are 5.0m 16s and forecast to arrive on Wednesday (Aug 12) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Aug 09) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 7th Aug) | 6ft (1.8m) 17s |
| Best Surf | 6AM (Mon 10th Aug) | 13ft (4.0m) 19s |
| Most Powerful | 6PM (Wed 12th Aug) | 16ft (5.0m) 16s |
Table - best surf conditions forecast for Knights over the next 16 days.
Short Range ForecastModerate rain (total 14mm), heaviest on Sun afternoon. Very mild (max 18°C on Fri afternoon, min 10°C on Sun afternoon). Winds increasing (light winds from the N on Fri night, fresh winds from the SW by Sun night). | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Tue night. Very mild (max 16°C on Tue morning, min 9°C on Tue night). Winds decreasing (fresh winds from the NNW on Tue afternoon, light winds from the WNW by Wed night). | |||||||||||||||||||
Fri 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
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 15 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 16 | SW 19 | SW 18 | SSW 17 | SSW 16 | SSW 14 | SSW 14 | SW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1222 | 1734 | 1273 | 1206 | 934 | 607 | 1018 | 5179 | 7806 | 5769 | 2827 | 1191 | 1057 | 5830 | 4543 | 3549 | 10251 | 7730 | 5733 | 3702 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross | cross |
High Tide | 11:20AM1.18m | 11:49AM1.29m | 12:17PM1.35m | 1:19AM0.55m | 12:44PM1.37m | 00:58AM0.58m | 1:09PM1.34m | 1:01AM0.63m | 1:30PM1.27m | 1:16AM0.71m | ||||||||||
Low Tide | 9:07PM0.45m | 9:11PM0.43m | 9:20PM0.42m | 9:28PM0.43m | 9:32PM0.46m | 4:36AM0.47m | 9:25PM0.50m | 5:36AM0.40m | 9:03PM0.52m | |||||||||||
 |  |  | |  |  | | | | |  |  |  | | | | | | | | |
 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 6:58 | — | — |
 | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — |
mm | — | 1 | — | — | 4 | 2 | 4 | 3 | — | — | — | — | 3 | 8 | — | 1 | — | — | — | — |
Temp °C | 18 | 15 | 15 | 15 | 13 | 15 | 11 | 13 | 12 | 13 | 13 | 16 | 16 | 10 | 13 | 14 | 13 | 15 | 14 | 14 |
Feels °C | 14 | 12 | 11 | 11 | 10 | 12 | 6 | 9 | 7 | 8 | 8 | 8 | 8 | 3 | 5 | 7 | 9 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 16 | SW 19 | SW 17 | SSW 17 | SSW 16 | SSW 14 | SSW 14 | SW 18 | SSW 17 | SSW 16 | — | SSW 16 | SSW 15 | SSW 14 |
| kJ | 1222 | 1734 | 1273 | 1206 | 934 | 607 | 1018 | 5179 | 4797 | 5769 | 2827 | 1191 | 1057 | 5830 | 4543 | 3549 | — | 7730 | 5733 | 3702 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SE 7 | S 7 | — | — | SSW 18 | WSW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 572 | 12 | 4 | — | — | 31 | 957 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 6 | — | — | — | — | SW 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | — | — | — | 82 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ESE 7 | NNE 3 | N 4 | N 4 | NNE 4 | NW 4 | SW 19 | SW 18 | — | WNW 3 | NNW 4 | NNW 4 | — | SW 8 | SW 11 | SSW 16 | — | — | — |
| kJ | — | 10 | 9 | 10 | 18 | 16 | 20 | 4068 | 7806 | — | 4 | 27 | 18 | — | 632 | 2964 | 10251 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 1 | 0 | 1 | 0 | 1 | 2 | 465 | 577 | 159 | 2 | 577 | 577 | 2 | 578 | 1020 | 2 | 570 | 2 | 1 |
Best forecast wave conditions in South Australia - East Coast | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
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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.
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