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Castles Surf Forecast
/ SA – Nullarbor (9 breaks) / South Australia (91 breaks) /
Surf Forecasts:
Castles surfForecast / SA – Nullarbor / Australia
48hr Weather and Surf, issued 8 am Saturday 23 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
18.3° C
(Which is normal for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 12PM is: 0.9m 13s primary swell from a Southwest direction and 0.6m 4s secondary swell from a Northwest direction (forecast issued at 08:30am May 23). The wind direction is predicted to be cross-shore.
| Time (ACST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 3ft (0.9m) | 13s |
| Afternoon (23 May) | 3ft (0.9m) | 12s |
| Evening (23 May) | 3.5ft (1.0m) | 13s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 18mm), heaviest on Sat afternoon. Very mild (max 18°C on Sat morning, min 13°C on Sat afternoon). Winds increasing (light winds from the NNW on Sat afternoon, strong winds from the WSW by Mon morning). | ||||||||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 9 | SW 9 | SW 10 | SW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | |
345 | 290 | 277 | 260 | 260 | 341 | 376 | 1018 | 990 | 760 | 747 | 794 | 784 | 716 | 639 | 589 | 904 | 1391 | 1145 | 1116 | 856 | 612 | 432 | 337 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross | cross | cross | cross | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross | cross | |
High Tide | 2:22PM0.92m | 00:40AM0.64m | 2:06PM0.82m | 11:22PM0.60m | 12:40PM0.77m | 9:50PM0.62m | ||||||||||||||||||
Low Tide | 7:06AM0.26m | 8:46PM0.57m | 6:50AM0.38m | 8:52PM0.59m | 5:27AM0.46m | 6:51PM0.60m | ||||||||||||||||||
 |  |  |  |  | |  | | | | |  |  | |  | | | | | | | | | | |
 | 7:24 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | 7:26 |
 | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:43 | — | — | — | 5:43 |
— | — | — | 3 | 1 | — | 3 | 3 | 1 | — | — | 1 | — | 2 | — | — | — | — | 2 | 2 | — | — | — | — | |
Temp °C | 16 | 16 | 18 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 15 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 17 | 16 | 16 | 16 | 15 |
10 | 10 | 13 | 9 | 10 | 11 | 9 | 8 | 8 | 8 | 7 | 9 | 8 | 9 | 9 | 8 | 7 | 7 | 10 | 11 | 9 | 10 | 10 | 9 | |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 13 | NNW 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 15 | SW 14 | SW 14 |
 kJ | 345 | 290 | 277 | 260 | 260 | 341 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 171 | 203 | 153 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 4 | NW 4 | NW 4 | NNW 4 | NW 2 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 9 | SW 9 | SW 10 | SW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 |
| kJ | 21 | 20 | 10 | 11 | 8 | 1 | 376 | 1018 | 990 | 760 | 747 | 794 | 784 | 716 | 639 | 589 | 904 | 1391 | 1145 | 1116 | 856 | 612 | 432 | 337 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 402 | 402 | 402 | 402 | 402 | 432 | 302 | 402 | 401 | 564 | 501 | 501 | 501 | 501 | 402 | 361 | 503 | 287 | 497 | 361 | 287 | 243 | 243 | 243 |
Best forecast wave conditions in Nullarbor | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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