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Knights Surf Forecast
/ SA – East Coast (28 surf breaks) /
Knights surfForecast / SA – East Coast / Australia
12 Day Weather and Surf, issued 2 pm Friday 11 Jul 2025 ACST
Best Forecast Surf Conditions for Knights this week:
The surf forecast for Knights over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 11) at 9PM. The primary swell is predicted to be 2.5m and 13s period with a secondary swell of 0.3m and 22s. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Knights in the next 12 days are 3.5m 19s and forecast to arrive on Thursday (Jul 17) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Sunday (Jul 13) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 11th Jul) | 8ft (2.5m) 13s |
| Best Surf | 12AM (Mon 14th Jul) | 11ft (3.5m) 14s |
| Most Powerful | 9PM (Thu 17th Jul) | 11ft (3.5m) 19s |
Table - best surf conditions forecast for Knights over the next 12 days.
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wed 23 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 14 | 13 | 14 | 17 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 12 | 12 | 13 | 16 | 15 | 15 | 19 | 17 | 17 | 16 | 16 | 18 | 18 | 17 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 12 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 2202 | 2539 | 3106 | 4128 | 2417 | 1409 | 3009 | 4302 | 2977 | 2116 | 1452 | 1181 | 1049 | 1083 | 1066 | 2016 | 3553 | 5498 | 7014 | 10353 | 5491 | 4322 | 4136 | 4944 | 10313 | 10014 | 7227 | 4276 | 3731 | 2349 | 2033 | 1048 | 543 | 427 | 507 | 852 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross | cross | cross | on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- on | cross- on | cross | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 1:16AM 0.58 | 1:56PM 1.39 | 1:44AM 0.60 | 2:24PM 1.34 | 2:13AM 0.64 | 2:52PM 1.28 | 2:45AM 0.71 | 3:17PM 1.19 | 3:19AM 0.79 | 3:39PM 1.11 | 3:58AM 0.87 | 3:52PM 1.02 | 4:43AM 0.95 | 3:47PM 0.96 | 5:41AM 10:55AM 1.01 0.98 | 11:09AM 1.14 | 11:37AM 1.28 | 12:07PM 1.38 | 12:58AM 0.54 | |||||||||||||||||
Low Tide / height (m) | 9:53PM 0.48 | 5:42AM 0.32 | 9:58PM 0.47 | 6:22AM 0.30 | 10:06PM 0.48 | 7:01AM 0.31 | 10:15PM 0.50 | 7:39AM 0.37 | 10:23PM 0.53 | 8:16AM 0.48 | 10:27PM 0.57 | 8:48AM 0.62 | 10:22PM 0.59 | 9:06AM 0.79 | 10:01PM 0.58 | 8:32AM 0.96 | 9:40PM 0.56 | 9:39PM 0.53 | 9:49PM 0.50 | 10:04PM 2:03AM 0.49 0.53 | ||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wed 23 | ||||||||||||||||||||||||
| Sunrise | - | - | 7:22 | - | - | 7:22 | - | - | 7:22 | - | - | 7:22 | - | - | 7:22 | - | - | 7:20 | - | - | 7:20 | - | - | 7:20 | - | - | 7:20 | - | - | 7:18 | - | - | 7:18 | - | - | 7:18 |
| Sunset | 5:16 | - | - | 5:17 | - | - | 5:17 | - | - | 5:19 | - | - | 5:20 | - | - | 5:20 | - | - | 5:21 | - | - | 5:22 | - | - | 5:22 | - | - | 5:22 | - | - | 5:23 | - | - | 5:23 | - | - |
 |  |  | |  | |  |  | | |  | | | | | | | |  | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 1 | - | 1 | 1 | 1 | - | - | - | - | - | - | 3 | 2 | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | 1 | 1 | - | - |
| Temp. °C | 15 | 14 | 15 | 16 | 15 | 15 | 13 | 12 | 11 | 12 | 10 | 14 | 14 | 12 | 14 | 14 | 12 | 13 | 11 | 12 | 12 | 13 | 10 | 14 | 15 | 12 | 14 | 17 | 14 | 16 | 16 | 12 | 11 | 12 | 12 | 15 |
| Feels °C (?) | 12 | 13 | 11 | 12 | 10 | 8 | 8 | 7 | 8 | 8 | 7 | 10 | 10 | 9 | 9 | 9 | 7 | 11 | 9 | 10 | 8 | 10 | 7 | 8 | 10 | 11 | 8 | 11 | 10 | 11 | 10 | 4 | 3 | 5 | 7 | 10 |
Short Range Forecast: Light rain (total 2mm), mostly falling on Sun afternoon. Very mild (max 16°C on Sat afternoon, min 10°C on Sun night). Winds increasing (light winds from the WNW on Fri afternoon, fresh winds from the NW by Sun morning). | Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Thu morning. Very mild (max 14°C on Tue morning, min 9°C on Mon afternoon). Wind will be generally light. | Days 6-9 Weather Summary Light rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 15°C on Sat afternoon, min 8°C on Fri morning). Wind will be generally light. | Long Range Forecast: Light rain (total 7mm), mostly falling on Mon night. Very mild (max 17°C on Sun afternoon, min 9°C on Sun night). Mainly strong winds. | |||||||||||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 12 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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