- Forecast
- Maps
- Live
- Weather State
- Spot Information
Castles Surf Forecast
/ SA – Nullarbor (9 breaks) / South Australia (91 breaks) /
Surf Forecasts:
Castles surfForecast / SA – Nullarbor / Australia
16 Day Weather and Surf, issued 8 am Thursday 28 May 2026 ACSTForecast update in hr min s Forecast update imminent
Castles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castles sea temperature is
18.0° C
(Which is normal for this time of year)Castles surf forecast from 28 May 2026:
- Best quality surf: Sunday 31 May, 6PM (local time) - 4.5ft (1.3m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 3 Jun, 12AM (local time) - 8ft (2.5m), 11s period, SSW swell with 1,606 kJ wave energy.
- Next surfable swell (1★+): Sunday 31 May, 6AM (local time) - 4.5ft (1.3m), 11s 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 Sunday (May 31) at 6AM. The primary swell is predicted to be 1.3m and 11s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Castles in the next 16 days are 2.5m 11s and forecast to arrive on Wednesday (Jun 03) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 3s period and expected on Monday (Jun 01) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 31st May) | 4.5ft (1.3m) 11s |
| Best Surf | 6PM (Sun 31st May) | 4.5ft (1.3m) 13s |
| Most Powerful | 12AM (Wed 3rd Jun) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Castles over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Sat afternoon. Very mild (max 18°C on Thu afternoon, min 15°C on Thu morning). Winds decreasing (fresh winds from the WSW on Sat morning, calm by Sat night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Warm (max 20°C on Sun night, min 14°C on Sun morning). Winds increasing (light winds from the NNE on Sun morning, near gales from the WNW by Mon night). | ||||||||||||||||||||
Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 1 | Tuesday 2 | Wednesday 3 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SW 17 | SW 16 | SW 15 | SW 15 | WSW 14 | SW 13 | WSW 12 | SW 12 | SW 11 | SW 11 | SW 10 | SW 13 | SW 12 | W 7 | WSW 10 | WSW 10 | SW 10 | SSW 11 | SW 10 | SW 10 | SW 14 | |
102 | 130 | 116 | 104 | 501 | 140 | 616 | 497 | 377 | 319 | 212 | 418 | 297 | 371 | 1508 | 1508 | 1226 | 1606 | 400 | 245 | 412 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross-on | cross | cross-on | on | on | cross-on | on | on | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross | |
High Tide | 11:09AM1.11m | 10:58PM0.75m | 11:26AM1.21m | 11:23PM0.78m | 11:47AM1.30m | 11:46PM0.79m | 12:10PM1.35m | 00:08AM0.80m | 12:34PM1.37m | 00:29AM0.80m | 12:58PM1.37m | 00:51AM0.80m | 1:24PM1.36m | 1:15AM0.79m | |||||||
Low Tide | 5:41PM0.32m | 4:40AM0.18m | 6:01PM0.24m | 5:03AM0.13m | 6:23PM0.19m | 5:25AM0.09m | 6:46PM0.17m | 5:48AM0.06m | 7:09PM0.17m | 6:11AM0.04m | 7:33PM0.19m | 6:35AM0.04m | 7:59PM0.21m | ||||||||
 | |  |  | |  |  | | |  | | | | |  | | | | | | | |
 | 7:26 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — |
 | — | 5:42 | — | — | 5:42 | — | — | 5:42 | — | — | 5:40 | — | — | 5:40 | — | — | 5:40 | — | — | 5:40 | — |
— | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
Temp °C | 16 | 18 | 17 | 18 | 17 | 17 | 17 | 16 | 16 | 15 | 18 | 20 | 20 | 20 | 17 | 17 | 16 | 16 | 16 | 17 | 16 |
14 | 16 | 14 | 13 | 13 | 14 | 11 | 11 | 12 | 11 | 15 | 12 | 10 | 10 | 6 | 10 | 9 | 10 | 13 | 12 | 13 | |
Swell 1 Height (m) Direction Period (s) | S 9 | SW 16 | SW 15 | SW 15 | S 8 | SW 13 | S 8 | S 8 | SW 11 | SW 11 | SW 10 | SW 13 | SW 12 | SSW 12 | — | — | — | SSW 11 | SW 10 | SW 10 | SW 14 |
 kJ | 39 | 130 | 116 | 104 | 1 | 140 | 1 | 1 | 377 | 319 | 212 | 418 | 297 | 299 | — | — | — | 1606 | 400 | 245 | 412 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SSW 8 | S 8 | S 7 | — | S 8 | — | — | — | SW 18 | SW 14 | — | SW 18 | — | — | — | — | — | SW 14 | SW 14 | S 9 |
| kJ | 50 | 22 | 10 | 4 | — | 1 | — | — | — | 12 | 114 | — | 12 | — | — | — | — | — | 118 | 198 | 59 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 20 | SW 20 |
| kJ | 102 | 35 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 15 | 15 |
Wind waves Height (m) Direction Period (s) | — | — | NW 2 | WNW 4 | WSW 14 | WSW 6 | WSW 12 | SW 12 | SW 11 | — | NNE 3 | NNE 3 | NNW 4 | W 7 | WSW 10 | WSW 10 | SW 10 | SW 11 | SW 11 | — | NNW 3 |
| kJ | — | — | 1 | 20 | 501 | 72 | 616 | 497 | 44 | — | 3 | 20 | 20 | 371 | 1508 | 1508 | 1226 | 1073 | 29 | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 178 | 501 | 178 | 649 | 649 | 1035 | 940 | 1227 | 0 | 0 | 564 | 970 | 1228 | 986 | 1061 | 1035 | 1049 | 1638 | 401 | 401 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest