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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 Tuesday 12 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
18.2° C
(Which is normal for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 3PM is: 0.3m 18s primary swell from a Southwest direction and 0.4m 7s secondary swell from a South-southwest direction, 0.4m 14s secondary swell from a Southwest direction, 0.2m 14s secondary swell from a South-southwest direction (forecast issued at 08:30am May 12). The wind direction is predicted to be cross-shore.
| Time (ACST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 1.5ft (0.4m) | 14s |
| Afternoon (12 May) | 1.5ft (0.4m) | 14s |
| Evening (12 May) | 1ft (0.3m) | 16s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 22°C on Thu afternoon, min 17°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | |
53 | 51 | 30 | 49 | 42 | 41 | 45 | 65 | 65 | 69 | 70 | 63 | 61 | 61 | 82 | 79 | 291 | 502 | 661 | 737 | 719 | 710 | 612 | 574 | |
Wind (km/h) | ||||||||||||||||||||||||
off | glassy | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | off | glassy | cross | cross | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | |
High Tide | 10:51AM0.84m | 10:21PM0.94m | 11:01AM1.02m | 10:59PM0.96m | 11:22AM1.20m | 11:33PM0.93m | ||||||||||||||||||
Low Tide | 4:27AM0.26m | 4:28PM0.41m | 4:41AM0.19m | 5:07PM0.24m | 4:59AM0.14m | 5:45PM0.12m | ||||||||||||||||||
 |  | | | | | |  | | | | | | | | | |  | |  |  | | | | |
 | 7:16 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — | — | 7:18 |
 | — | — | — | 5:51 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | 5:49 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 17 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 18 | 20 | 21 | 20 | 20 | 20 | 19 | 18 | 17 | 20 | 22 | 22 | 22 | 21 | 20 |
15 | 16 | 16 | 14 | 14 | 14 | 16 | 15 | 15 | 17 | 19 | 18 | 16 | 17 | 17 | 16 | 15 | 13 | 17 | 20 | 21 | 19 | 18 | 17 | |
Swell 1 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SSW 8 | SSW 7 | SW 16 | SW 16 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 |
 kJ | 24 | 22 | 20 | 18 | 42 | 41 | 45 | 65 | 65 | 69 | 70 | 63 | 61 | 61 | 82 | 79 | 291 | 502 | 661 | 737 | 719 | 710 | 612 | 574 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 7 | SW 16 | SSW 6 | S 6 | S 6 | S 6 | SSE 4 | SW 18 | SW 17 | SW 16 | SW 16 | SSE 6 | S 11 | — | — | — | — | — | — |
| kJ | 53 | 51 | 30 | 47 | 27 | 9 | 41 | 8 | 13 | 7 | 7 | 4 | 12 | 44 | 66 | 67 | 3 | 2 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 8 | SW 18 | WSW 18 | SW 18 | — | SW 13 | S 7 | S 7 | S 9 | S 9 | — | S 8 | S 8 | S 8 | S 8 | S 8 | SSE 6 | — | — | — | — | — | — | — |
| kJ | 18 | 13 | 30 | 49 | — | 27 | 1 | 1 | 2 | 2 | — | 5 | 1 | 1 | 1 | 5 | 7 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSW 14 | S 7 | SE 3 | SSE 7 | SE 3 | — | — | — | S 6 | SSE 8 | SSE 4 | SSE 4 | — | — | — | — | — | — | — | NNE 2 | NNE 2 |
| kJ | — | — | — | 18 | 15 | 2 | 15 | 3 | — | — | — | 7 | 13 | 4 | 2 | — | — | — | — | — | — | — | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 489 | 489 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 154 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Nullarbor | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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