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Knights Surf Forecast
/ SA – East Coast (28 surf breaks) /
Surf Forecasts:
Knights surfForecast / SA – East Coast / Australia
16 Day Weather and Surf, issued 2 pm Monday 11 May 2026 ACSTForecast update in hr min s Forecast update imminent
Knights surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Knights sea temperature is
17.1° C
(Which is normal for this time of year)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 (May 12) at 12AM. The primary swell is predicted to be 1.2m and 12s period with a secondary swell of 0.5m 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 2.0m 16s and forecast to arrive on Saturday (May 16) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Friday (May 15) at 12PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 12th May) | 4ft (1.2m) 12s |
| Best Surf | 6PM (Thu 14th May) | 4.5ft (1.3m) 17s |
| Most Powerful | 6PM (Sat 16th May) | 6.5ft (2.0m) 16s |
Table - best surf conditions forecast for Knights over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 21°C on Wed afternoon, min 14°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Fri afternoon. Warm (max 21°C on Fri morning, min 15°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SSW 13 | SSW 12 | SSW 13 | SSW 13 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SW 21 | SW 18 | WSW 17 | SSW 15 | SW 14 | SW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | |
755 | 380 | 482 | 312 | 306 | 178 | 163 | 151 | 157 | 743 | 1388 | 791 | 614 | 424 | 607 | 1136 | 1488 | 1080 | 946 | 862 | 1323 | |
Wind (km/h) | |||||||||||||||||||||
cross | glassy | cross-off | cross | glassy | cross-off | cross-off | off | off | off | cross-off | off | cross-off | off | off | cross-off | off | cross-off | on | glassy | cross-on | |
High Tide | 6:32PM0.88m | 11:44AM0.82m | 10:35PM0.87m | 11:41AM0.95m | 11:13PM0.85m | 11:54AM1.10m | 11:42PM0.80m | 12:15PM1.23m | 00:05AM0.75m | 12:40PM1.35m | 00:20AM0.69m | 1:09PM1.43m | 00:26AM0.65m | ||||||||
Low Tide | 8:23PM0.88m | 4:14AM0.54m | 3:31PM0.73m | 4:16AM0.53m | 5:04PM0.67m | 4:24AM0.51m | 6:13PM0.62m | 4:35AM0.48m | 7:13PM0.59m | 4:48AM0.44m | 8:12PM0.59m | 5:03AM0.38m | 9:17PM0.60m | 5:21AM0.32m | |||||||
 |  |  |  | | | |  | | | | |  |  |  | | | | | | | |
 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 |
 | 5:22 | — | — | 5:22 | — | — | 5:21 | — | — | 5:20 | — | — | 5:19 | — | — | 5:19 | — | — | 5:17 | — | 5:16 |
— | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 | 1 | — | 3 | — | 2 | 1 | — | |
Temp °C | 17 | 15 | 18 | 19 | 18 | 20 | 21 | 19 | 20 | 19 | 18 | 21 | 16 | 15 | 21 | 21 | 16 | 21 | 19 | 15 | 16 |
15 | 15 | 15 | 17 | 18 | 16 | 18 | 17 | 17 | 17 | 16 | 18 | 14 | 14 | 19 | 20 | 14 | 20 | 19 | 15 | 15 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 13 | SSW 13 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SW 18 | SW 16 | SW 16 | SW 14 | SW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | S 24 |
 kJ | 755 | 380 | 482 | 312 | 306 | 178 | 163 | 151 | 98 | 743 | 1070 | 711 | 614 | 424 | 607 | 1136 | 1488 | 1080 | 946 | 862 | 11 |
Swell 2 Height (m) Direction Period (s) | — | SSW 15 | SSW 20 | SSW 18 | S 9 | S 8 | S 8 | S 7 | SW 21 | SSW 12 | WSW 17 | SSW 15 | — | — | SSW 20 | SW 13 | — | — | — | S 24 | SW 24 |
| kJ | — | 121 | 165 | 260 | 78 | 48 | 29 | 15 | 157 | 98 | 1388 | 791 | — | — | 38 | 479 | — | — | — | 11 | 22 |
Swell 3 Height (m) Direction Period (s) | — | SW 24 | — | S 9 | S 8 | SW 8 | SW 19 | SSW 18 | SW 16 | ESE 8 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 23 | — | 40 | 35 | 17 | 15 | 31 | 66 | 7 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SE 3 | ENE 3 | ENE 3 | ENE 3 | NE 3 | — | — | NE 3 | NE 4 | NNE 3 | N 3 | NNE 3 | NNE 3 | NNW 3 | — | — | SSW 12 |
| kJ | — | — | — | — | 6 | 3 | 2 | 4 | 4 | — | — | 3 | 11 | 3 | 7 | 3 | 4 | 7 | — | — | 1323 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 33 | 0 | 164 |
Best forecast wave conditions in South Australia - East Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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