Surf Forecasts:
Castles surf forecast from 3 Jul 2026:
- Best quality surf: Saturday 4 Jul, 12AM (local time) - 6.5ft (2.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 5 Jul, 9AM (local time) - 6ft (1.9m), 17s period, SW swell with 2,191 kJ wave energy.
- Next surfable swell (1★+): Saturday 4 Jul, 12AM (local time) - 6.5ft (2.0m), 14s 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 Saturday (Jul 04) at 12AM. The primary swell is predicted to be 2.0m and 14s period with a secondary swell of 0.4m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Castles in the next 16 days are 1.9m 17s and forecast to arrive on Sunday (Jul 05) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Jul 06) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 4th Jul) | 6.5ft (2.0m) 14s |
| Best Surf | 12AM (Sat 4th Jul) | 6.5ft (2.0m) 14s |
| Most Powerful | 9AM (Sun 5th Jul) | 6ft (1.9m) 17s |
Table - best surf conditions forecast for Castles over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let’s break down what’s coming for Castles.
We’ve got some decent surf on the horizon, but you’ll need to be patient. Nothing really worth a paddle until Saturday the 5th of July. Water temp is about 61°F, which is normal for this time of year.
The big highlight is Sunday the 5th of July morning. We’re looking at a solid 6ft SW groundswell with a long 17-second period. That’s serious energy (2191 combined), and with clean offshore ENE winds at 12 mph, it’s going to be a rippable, powerful wave. This one is for experienced surfers only – too big for the groms.
Wednesday the 8th of July morning is another beauty. A 6ft SW swell, again with a 17-second period (1816 combined energy). Light offshore NE breeze at 9 mph, so it’ll be clean and lined up. Still a lot of power, so watch your step.
There’s a quiet patch mid-week, but Saturday the 11th of July afternoon throws a curveball: a 10ft SW swell, but with a short 9-second period – more of a wind swell. The energy is still strong (1303), and it’s glassy with a light NW breeze at 3 mph. It’ll be clean but fat and a bit shifty. Only for the brave.
Then it gets ugly. Sunday the 12th of July has strong cross-onshore winds (SSW 19-22 mph) and big, lumpy 8ft swell. Stay on the beach that day.
The following week cleans up but the swell drops off. Thursday the 16th of July morning has clean offshore E winds and a small 3ft SW swell. Saturday the 18th of July morning looks like a fun little session too: 3ft SW swell, offshore NE wind, and glassy by the arvo. Perfect for a longboard.
So, the best of the bunch: Sunday the 5th of July and Wednesday the 8th of July, both mornings at Castles. Powerful SW groundswell, clean, offshore winds, and plenty of push. Get in the water.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Sat afternoon, min 11°C on Mon morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Wed night. Very mild (max 16°C on Tue afternoon, min 11°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Fri 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | |||||||||||||||
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) | SW 14 | SW 14 | SW 13 | SW 14 | SW 14 | SW 17 | SW 16 | SW 16 | SW 14 | SW 14 | SW 13 | SW 15 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2263 | 1408 | 917 | 765 | 890 | 2191 | 1631 | 1087 | 536 | 331 | 178 | 427 | 728 | 1610 | 1816 | 1347 | 875 | 606 | 631 | 529 | 459 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | off | off | cross-off | cross-off |
High Tide | 2:01AM0.83m | 2:23PM1.32m | 2:35AM0.83m | 2:52PM1.23m | 3:12AM0.82m | 3:21PM1.09m | 3:58AM0.79m | 3:48PM0.92m | 5:05AM0.77m | 3:57PM0.72m | 7:59AM0.80m | 10:15AM0.97m | |||||||||
Low Tide | 8:31PM0.15m | 7:42AM0.09m | 8:59PM0.16m | 8:15AM0.16m | 9:29PM0.20m | 8:50AM0.26m | 9:59PM0.25m | 9:32AM0.39m | 10:30PM0.33m | 10:37AM0.56m | 11:00PM0.40m | 11:37PM0.46m | |||||||||
 |  |  | |  |  | | | | | | | | | | |  |  | | | | |
 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:37 | — | — | 7:37 |
 | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | 5:47 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 3 | — | — | — |
Temp °C | 14 | 15 | 15 | 16 | 15 | 15 | 16 | 15 | 13 | 15 | 14 | 13 | 16 | 15 | 15 | 16 | 14 | 12 | 12 | 12 | 15 |
Feels °C | 12 | 11 | 11 | 11 | 10 | 9 | 11 | 10 | 9 | 11 | 9 | 9 | 13 | 11 | 10 | 12 | 12 | 9 | 9 | 8 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 14 | SW 14 | SW 17 | SW 16 | SW 16 | SW 14 | SW 14 | SW 13 | SW 15 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 |
| kJ | 2263 | 1408 | 917 | 765 | 890 | 2191 | 1631 | 1087 | 536 | 331 | 178 | 427 | 728 | 1610 | 1816 | 1347 | 875 | 606 | 631 | 529 | 459 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SW 17 | — | S 9 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 142 | — | 43 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SW 14 | — | — | — | — | — | — | — | — | SE 4 | SE 4 | — | — | — | — | ENE 3 | — | — | NNW 3 | NNW 3 |
| kJ | — | 48 | — | — | — | — | — | — | — | — | 6 | 3 | — | — | — | — | 7 | — | — | 1 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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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