Surf Forecasts:
Castles surf forecast from 17 Oct 2026:
- Best quality surf: Thursday 22 Oct, 4AM (local time) - 5ft (1.6m), 17s period, SW swell with offshore winds.
- Most powerful swell: Sunday 25 Oct, 10AM (local time) - 8ft (2.4m), 16s period, SW swell with 2,658 kJ wave energy.
- Next surfable swell (1★+): Wednesday 21 Oct, 4AM (local time) - 3.5ft (1.1m), 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 Wednesday (Oct 21) at 4AM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 0.3m and 21s. 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 2.4m 16s and forecast to arrive on Sunday (Oct 25) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (Oct 19) at 1AM.
| Wave Type | Time (ACDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 21st Oct) | 3.5ft (1.1m) 14s |
| Best Surf | 4AM (Thu 22nd Oct) | 5ft (1.6m) 17s |
| Most Powerful | 10AM (Sun 25th Oct) | 8ft (2.4m) 16s |
Table - best surf conditions forecast for Castles over the next 16 days.
Short Range ForecastMostly dry. Warm (max 33°C on Sun afternoon, min 13°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Thu morning, min 14°C on Fri night). Winds increasing (light winds from the SW on Thu morning, fresh winds from the S by Thu night). | ||||||||||||||||||||
Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 15 | SW 15 | SW 16 | SW 15 | WSW 15 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 17 | SW 16 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 15 | SW 16 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 217 | 355 | 612 | 847 | 807 | 379 | 295 | 374 | 290 | 342 | 1420 | 1364 | 1096 | 976 | 1682 | 2599 | 2231 | 1456 | 1281 | 1179 | 788 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross | cross | cross | cross-off | cross | cross-off | cross-off | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross-off |
High Tide | 2:08PM0.75m | 3:26AM0.94m | 1:07PM0.71m | 3:01AM0.79m | 11:35AM0.79m | 1:12AM0.73m | 11:27AM0.93m | 00:22AM0.83m | 11:44AM1.04m | 00:18AM0.98m | 12:08PM1.12m | 00:30AM1.15m | 12:32PM1.14m | 00:47AM1.29m | |||||||
Low Tide | 8:22PM0.20m | 9:15AM0.62m | 7:48PM0.28m | 7:15AM0.69m | 6:43PM0.29m | 5:41AM0.57m | 6:12PM0.22m | 5:45AM0.39m | 6:11PM0.13m | 6:06AM0.22m | 6:20PM0.06m | 6:33AM0.08m | 6:34PM0.01m | ||||||||
 | |  | | | |  | |  | | | | | | | | | |  |  |  | |
 | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — |
 | — | 7:51 | — | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:53 | — | — | 7:54 | — | — | 7:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 |
Temp °C | 31 | 33 | 30 | 22 | 18 | 15 | 16 | 16 | 14 | 18 | 18 | 18 | 29 | 27 | 20 | 16 | 16 | 15 | 20 | 19 | 19 |
Feels °C | 26 | 28 | 24 | 18 | 13 | 12 | 14 | 13 | 11 | 15 | 14 | 13 | 25 | 22 | 17 | 12 | 10 | 10 | 15 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 16 | SW 15 | — | SW 6 | SW 13 | SW 13 | SW 13 | SW 13 | SW 17 | SW 16 | SW 16 | SW 16 | — | — | — | SW 15 | SW 16 | SW 16 | SW 15 |
| kJ | 217 | 355 | 612 | 847 | — | 75 | 295 | 374 | 290 | 342 | 1420 | 1364 | 1096 | 976 | — | — | — | 1456 | 1281 | 1179 | 788 |
Swell 2 Height (m) Direction Period (s) | SSE 4 | ESE 5 | SSE 4 | — | — | SW 14 | SW 6 | SW 24 | SW 21 | SW 19 | — | — | — | SW 21 | — | — | — | — | — | — | — |
| kJ | 2 | 2 | 2 | — | — | 379 | 33 | 22 | 72 | 236 | — | — | — | 220 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 16 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 90 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 3 | SE 5 | NE 4 | WSW 15 | WSW 15 | SW 14 | — | SW 13 | S 4 | — | SSW 17 | SE 4 | — | SW 16 | SW 17 | SW 17 | SW 16 | — | — | SW 16 | — |
| kJ | 4 | 3 | 12 | 716 | 807 | 68 | — | 43 | 7 | — | 119 | 10 | — | 63 | 1682 | 2599 | 2231 | — | — | 64 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 361 | 0 | 287 | 642 | 432 | 553 | 491 | 552 | 491 | 0 | 491 | 1 | 1 | 489 | 491 | 1045 | 1236 | 287 | 1 | 489 | 0 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||||
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 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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