Surf Forecasts:
Castles surf forecast from 4 Aug 2026:
- Best quality surf: Thursday 6 Aug, 6PM (local time) - 5ft (1.5m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 6AM (local time) - 11ft (3.5m), 17s period, SW swell with 6,874 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 3PM (local time) - 2.5ft (0.8m), 15s 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 Tuesday (Aug 04) at 3PM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.7m 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 3.5m 17s and forecast to arrive on Monday (Aug 10) at 6AM. 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 Friday (Aug 07) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Tue 4th Aug) | 2.5ft (0.8m) 15s |
| Best Surf | 6PM (Thu 6th Aug) | 5ft (1.5m) 16s |
| Most Powerful | 6AM (Mon 10th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Castles over the next 16 days.
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 11°C on Tue morning). Winds increasing (light winds from the NE on Tue afternoon, fresh winds from the NNE by Thu night). | Days 4-6 Weather SummaryHeavy rain (total 29mm), heaviest during Sat night. Warm (max 21°C on Fri morning, min 10°C on Sat night). Winds increasing (light winds from the NE on Fri afternoon, near gales from the WSW by Sun morning). | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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 12 | SW 15 | SW 15 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | WSW 9 | WSW 12 | WSW 17 | WSW 17 | SW 16 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 319 | 258 | 335 | 361 | 694 | 581 | 567 | 897 | 1402 | 1271 | 1252 | 1287 | 1068 | 988 | 767 | 1635 | 2377 | 5046 | 4539 | 4228 | 3420 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | cross-on | cross | cross-off | cross | off | cross-off | cross-on | cross-off | cross-off | cross | cross-on | on | on | on | cross-on | cross-on | on |
High Tide | 2:45PM1.07m | 3:17AM1.01m | 2:52PM0.90m | 3:49AM0.95m | 2:24PM0.75m | 4:31AM0.85m | 11:17AM0.96m | 2:07AM0.58m | 11:38AM1.14m | 1:00AM0.58m | 12:03PM1.28m | 00:48AM0.63m | |||||||||
Low Tide | 9:00PM0.13m | 9:12AM0.35m | 9:08PM0.19m | 9:37AM0.53m | 8:59PM0.25m | 9:18AM0.74m | 8:14PM0.26m | 7:25PM0.20m | 4:19AM0.56m | 7:12PM0.14m | 5:06AM0.41m | 7:16PM0.11m | |||||||||
 |  |  | | |  | | | |  |  |  | | |  |  | | | | | | |
 | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — |
 | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — |
mm | — | — | — | — | — | — | — | — | — | — | 5 | 3 | 2 | 5 | 9 | 2 | 2 | 1 | — | — | 1 |
Temp °C | 16 | 19 | 18 | 16 | 20 | 17 | 16 | 17 | 17 | 21 | 16 | 17 | 16 | 17 | 17 | 12 | 13 | 14 | 15 | 16 | 14 |
Feels °C | 12 | 15 | 13 | 11 | 17 | 14 | 15 | 15 | 14 | 14 | 12 | 10 | 11 | 11 | 11 | 0 | 4 | 8 | 7 | 7 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 15 | SW 15 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | — | — | — | WSW 17 | SW 16 | — |
| kJ | 319 | 258 | 322 | 361 | 694 | 581 | 567 | 897 | 1402 | 1271 | 1252 | 1287 | 1068 | 988 | 767 | — | — | — | 4539 | 4228 | — |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 10 | SW 21 | SW 15 | SSW 9 | WSW 6 | WSW 5 | SW 4 | — | — | — | W 6 | — | — | — | — | — | — | — | — | — |
| kJ | 229 | 106 | 150 | 134 | 31 | 6 | 2 | 3 | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | SW 20 | SSW 10 | — | S 8 | — | S 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 335 | 36 | — | 5 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 3 | — | NE 3 | N 3 | W 9 | — | S 8 | SW 16 | — | N 4 | WNW 4 | — | NW 4 | NW 5 | NW 5 | WSW 9 | WSW 12 | WSW 17 | NW 2 | WSW 16 | SW 14 |
| kJ | 2 | — | 3 | 8 | 6 | — | 1 | 65 | — | 22 | 14 | — | 24 | 17 | 55 | 1635 | 2377 | 5046 | 2 | 3924 | 3420 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 147 | 1 | 0 | 1 | 0 | 402 | 178 | 402 | 649 | 649 | 1166 | 1338 | 969 | 1045 | 394 | 652 | 1227 |
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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