Surf Forecasts:
Knights surf forecast from 14 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 6PM (local time) - 11ft (3.5m), 15s period, SSW swell with cross-onshore winds.
- Most powerful swell: Tuesday 14 Jul, 6PM (local time) - 11ft (3.5m), 15s period, SSW swell with 4,893 kJ wave energy.
- Next surfable swell (1★+): Tuesday 14 Jul, 6PM (local time) - 11ft (3.5m), 15s 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 (Jul 14) at 6PM. The primary swell is predicted to be 3.5m and 15s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Knights in the next 16 days are 3.5m 15s and forecast to arrive on Tuesday (Jul 14) 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 0.8m 4s period and expected on Tuesday (Jul 21) at 12PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Tue 14th Jul) | 11ft (3.5m) 15s |
| Best Surf | 6PM (Tue 14th Jul) | 11ft (3.5m) 15s |
| Most Powerful | 6PM (Tue 14th Jul) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Knights over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s coming up at Knights.
Water temp is about 58°F, just a bit cooler than usual for the time of year, so a wetsuit is your friend.
We’ve got a big stretch of swell coming but it starts off raw. Tuesday morning July 14th we’re seeing a massive 13ft SSW groundswell with a very long 16 second period. Combined energy is 7153 (moderate to strong). The wind is a cross-on from the WSW at 12 mph, so it’s going to be choppy. Tuesday afternoon it’s still 12ft but the break says it’s too big. Leave it for the kamikazes.
Wednesday the 15th drops to 8ft but the wind and tide aren’t lining up. Nothing to call home about.
Thursday the 16th of July – now we’re talking. Morning has clean 8ft SSW groundswell at 15 seconds, with an offshore NNE breeze at 6 mph. Conditions are excellent for experienced surfers. The afternoon is the real standout: glassy conditions, a light ESE breeze at 3 mph, and a solid 8ft SSW swell with a very long 16 second period. Combined energy still strong at 3142. This is the best window – clean, powerful, and lined up.
Friday the 17th keeps the streak going: offshore winds in the morning with 6ft SSW swell, then glass again in the afternoon with 7ft. Still for the experienced only.
Saturday the 18th is smaller at 4ft but the wind is offshore and glassy – clean and more manageable for the average surfer.
Sunday the 19th is small and clean, just knee to waist high.
Monday the 20th stays small with cross-off winds.
Tuesday the 21st bumps up a touch to 5ft SW swell, but the wind picks up to 12 mph and the energy is only 623 (weak to moderate). Clean but marginal.
Wednesday the 22nd has 6ft SW swell with a short 10 second period and cross-shore winds. Not great.
Now, Thursday the 23rd of July: another solid 8ft SSW groundswell with a 15 second period, combined energy at 2620 (moderate to strong). Cross-off NW wind at 12 mph keeps it clean. This is for experts but it’s promising. Friday the 24th and Saturday the 25th hold similar size but the wind goes cross and then cross-on, so quality drops. Saturday afternoon gets choppy.
Sunday the 26th drops to 6ft, and Monday the 27th has excellent morning conditions with 6ft SSW groundswell and clean offshore ENE wind at 3 mph. Another good window for the advanced crew.
After that, the swell fades quickly into the end of July, dropping well under 4ft. The energy is weak.
So the real pick: Thursday afternoon July 16th and Friday morning July 17th – glassy, solid, long period groundswell. Later on Thursday the 23rd and Monday the 27th are also worth a look if you’re experienced.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 15°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Sat afternoon, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tue 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SW 20 | SSW 18 | SSW 16 | SW 16 | SW 15 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5733 | 3580 | 2807 | 2160 | 2230 | 2754 | 3182 | 1980 | 2191 | 1834 | 961 | 486 | 458 | 325 | 200 | 214 | 464 | 573 | 489 | 597 | 711 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross | on | cross-off | off | glassy | cross-off | off | glassy | off | off | cross-off | off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off |
High Tide | 00:52AM0.55m | 1:42PM1.42m | 1:10AM0.59m | 2:07PM1.36m | 1:35AM0.66m | 2:29PM1.27m | 2:07AM0.73m | 2:49PM1.19m | 2:44AM0.81m | 3:06PM1.12m | 3:24AM0.88m | 3:20PM1.06m | 4:08AM0.94m | ||||||||
Low Tide | 10:34PM0.51m | 4:53AM0.40m | 10:34PM0.54m | 5:42AM0.36m | 10:20PM0.57m | 6:28AM0.35m | 10:00PM0.58m | 7:10AM0.39m | 9:47PM0.57m | 7:49AM0.47m | 9:45PM0.54m | 8:25AM0.58m | 9:53PM0.52m | 8:53AM0.72m | |||||||
 |  | |  | | | | | | |  | | | | | | | | | | | |
 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 |
 | 5:19 | — | — | 5:20 | — | — | 5:20 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | 5:23 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 12 | 13 | 13 | 12 | 13 | 14 | 12 | 15 | 15 | 13 | 16 | 17 | 14 | 17 | 17 | 15 | 16 | 16 | 15 | 16 |
Feels °C | 12 | 10 | 11 | 11 | 11 | 12 | 13 | 10 | 14 | 13 | 12 | 14 | 15 | 11 | 13 | 15 | 12 | 11 | 12 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 16 | SW 16 | SW 15 | SW 14 | SW 13 |
| kJ | 5733 | 3580 | 2807 | 2160 | 2230 | 2754 | 3182 | 1980 | 2191 | 1834 | 961 | 486 | 458 | 325 | 200 | 126 | 464 | 573 | 489 | 597 | 711 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 22 | SW 20 | SSW 18 | S 10 | SSW 11 | S 10 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 18 | 97 | 214 | 56 | 38 | 8 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 20 | SW 12 | S 10 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 186 | 89 | 54 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NE 3 | NE 3 | NNE 3 | NNE 3 | NE 3 | NNE 3 | NNW 3 | NW 3 | NNW 3 | NW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 | 3 | 4 | 2 | 3 | 3 | 2 | 1 | 13 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 651 | 2 | 1 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 |
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.
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