Surf Forecasts:
Castles surf forecast from 7 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 12AM (local time) - 5ft (1.6m), 16s period, SW swell with offshore winds.
- Most powerful swell: Monday 13 Jul, 6PM (local time) - 7ft (2.2m), 17s period, SW swell with 2,823 kJ wave energy.
- Next surfable swell (1★+): Wednesday 8 Jul, 12AM (local time) - 5ft (1.6m), 16s period with SW swell.
Best Forecast Surf Conditions for Castles this week:
The surf forecast for Castles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 08) at 12AM. The primary swell is predicted to be 1.6m and 16s period with a secondary swell of 0.6m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Castles in the next 16 days are 2.2m 17s and forecast to arrive on Monday (Jul 13) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Wednesday (Jul 08) at 6PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 8th Jul) | 5ft (1.6m) 16s |
| Best Surf | 12AM (Wed 8th Jul) | 5ft (1.6m) 16s |
| Most Powerful | 6PM (Mon 13th Jul) | 7ft (2.2m) 17s |
Table - best surf conditions forecast for Castles over the next 16 days.
Alright, let’s talk in feet and miles per hour, eh? I’m Rusty, and I’ve been looking over the numbers for your local break. The next couple weeks have some real sweet spots, but you’ll need to time it right – there’s plenty of onshore junk in between.
Our spot is Castles, a consistent reef that’s beginner-friendly when it’s small, but watch out when it pushes over 5 ft. Water temp is normal for July – nothing out of the ordinary. The first good window opens Wednesday morning, July 8: clear skies, a light offshore breeze from the NE, and a solid 5.6-ft SW groundswell with a 17-second period. That’s long-period energy, perfect for the reef – smooth, lined-up rides. Combined wave energy is 1710 (moderate-strong). Might be a bit much for beginners, but the offshore wind will keep it glassy. The afternoon gets even better: still 5.2 ft, 16 seconds, and the wind turns fully offshore from the NE – clean as a whistle, energy at 1245. That’s the best of the first week.
Thursday and Friday fall apart – wind goes onshore, swell drops, and it gets choppy. Saturday the 11th is a complete mess with strong onshore winds and short-period junk. Sunday the 12th sees a pulse of 7.5-ft SW swell (12 seconds), but it’s hammered by 12–15 mph WSW onshore wind. Too big and messy for paddling – maybe kite surfers could have fun, but paddle surfers, sit this one out.
The next good opportunity comes Wednesday, July 15. Morning is another beauty: clear, light offshore from the ENE, and 5.6-ft SW swell with 15 seconds. Energy is 1204 – moderate, but super clean. The reef will be dialed. Then Thursday afternoon, July 16, is the real standout: only 3.9 ft of swell, but the period jumps to a crazy 21 seconds – that’s very long-period groundswell. Combined energy hits 2045 (strong). The wind is a light cross-offshore from the SE,
Short Range ForecastMostly dry. Very mild (max 16°C on Tue night, min 13°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Mon morning. Very mild (max 15°C on Fri night, min 14°C on Fri night). Winds decreasing (fresh winds from the WSW on Sat afternoon, light winds from the WSW by Mon afternoon). | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 17 | SW 15 | SW 15 | SW 14 | SW 14 | SW 7 | SW 8 | SW 12 | SW 12 | SW 12 | SW 13 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1245 | 1710 | 1245 | 886 | 472 | 1050 | 763 | 558 | 529 | 331 | 332 | 406 | 1768 | 1572 | 827 | 905 | 2087 | 2711 | 2414 | 1675 | 1410 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | cross-off | cross | on | cross-on | cross | on | cross-on | on | on | on | on | on | on | cross-on | on | cross-on | cross-on | on |
High Tide | 5:05AM0.77m | 3:57PM0.72m | 7:59AM0.80m | 10:15AM0.97m | 11:53PM0.50m | 11:07AM1.15m | 00:15AM0.53m | 11:48AM1.29m | 00:34AM0.55m | 12:23PM1.38m | 00:49AM0.58m | 12:54PM1.41m | |||||||||
Low Tide | 10:30PM0.33m | 10:37AM0.56m | 11:00PM0.40m | 11:37PM0.46m | 6:31PM0.33m | 6:49PM0.21m | 4:29AM0.36m | 7:15PM0.15m | 5:12AM0.27m | 7:39PM0.14m | 5:46AM0.18m | ||||||||||
 |  | |  |  | |  | | | |  | | | | | |  | | | | | |
 | — | 7:39 | — | — | 7:37 | — | — | 7:37 | — | — | 7:37 | — | — | 7:37 | — | — | 7:37 | — | — | 7:37 | — |
 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 16 | 15 | 15 | 15 | 15 | 16 | 15 | 15 | 16 | 15 | 15 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 15 |
Feels °C | 13 | 12 | 12 | 12 | 13 | 13 | 14 | 11 | 12 | 10 | 8 | 7 | 8 | 11 | 10 | 11 | 11 | 12 | 12 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 17 | SW 15 | SW 15 | SW 14 | SW 14 | — | — | SW 12 | SW 12 | SSW 21 | SW 13 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 |
| kJ | 1245 | 1710 | 1245 | 886 | 472 | 1050 | 763 | 558 | 529 | 331 | — | — | 1768 | 1572 | 44 | 905 | 2087 | 2711 | 2414 | 1675 | 1410 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | — | — | — | SW 20 | — | — | SW 4 | — | — | — | — | — | — | SW 20 | SW 18 | SW 19 | — | — | — | — |
| kJ | 61 | — | — | — | 134 | — | — | 1 | — | — | — | — | — | — | 104 | 375 | 96 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 22 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 118 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 2 | — | SW 17 | W 4 | WSW 4 | WSW 3 | W 4 | SW 7 | SW 8 | SW 12 | SW 12 | SW 12 | SW 18 | — | SW 16 | — | — | SW 16 |
| kJ | — | — | — | 1 | — | 76 | 13 | 5 | 2 | 12 | 332 | 406 | 1065 | 1003 | 827 | 108 | — | 69 | — | — | 64 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 178 | 1 | 1 | 501 | 648 | 1217 | 1219 | 1217 | 1217 | 1229 | 1035 | 649 | 648 | 648 | 648 | 648 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||||
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 Castles 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 Castles Surf forecast
The above surf forecast table for Castles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Castles can be found by selecting the local surf guide option on the grey menu. Our Castles 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 (Castles) 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 Castles 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.
Are you planning a holiday in Nullarbor? If you are looking for accommodation near Castles, camping, hotels and holiday cottages in Nullarbor, consider staying in Thevenard which is 64 km (40 miles) away.
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