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The Trough Surf Forecast
/ SA – Adelaide (17 breaks) / South Australia (91 breaks) /
Surf Forecasts:
The Trough surfForecast / SA – Adelaide / Australia
48hr Weather and Surf, issued 2 am Monday 18 May 2026 ACSTForecast update in hr min s Forecast update imminent
The Trough surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Trough sea temperature is
18.3° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at The Trough today?
The current surf forecast for The Trough at 8AM is: 0.2m 8s primary swell from a West-southwest direction (forecast issued at 02:30am May 18). The wind direction is predicted to be glassy.
| Time (ACST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 0.5ft (0.2m) | 8s |
| Afternoon (18 May) | 1.5ft (0.4m) | 3s |
| Evening (18 May) | 2ft (0.6m) | 4s |
Table - waves today at The Trough. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Very mild (max 17°C on Wed afternoon, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 3 | W 4 | W 4 | W 4 | W 4 | WSW 4 | WSW 4 | WSW 4 | WSW 4 | SW 4 | SW 4 | WSW 4 | WSW 4 | WSW 4 | WSW 5 | SW 10 | SW 9 | WSW 9 | WSW 9 | |
7 | 7 | 6 | 6 | 6 | 2 | 10 | 12 | 11 | 17 | 20 | 17 | 11 | 9 | 12 | 15 | 12 | 7 | 4 | 5 | 4 | 3 | 8 | 8 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | glassy | on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | off | |
High Tide | 5:22AM1.13m | 4:59PM2.19m | 5:42AM1.08m | 5:28PM2.19m | 6:01AM1.06m | 5:56PM2.13m | ||||||||||||||||||
Low Tide | 11:32PM-0.05m | 10:20AM0.38m | 00:01AM-0.02m | 10:42AM0.32m | 00:28AM0.07m | 11:07AM0.29m | ||||||||||||||||||
 | | |  | | | |  | |  | | |  | | | |  | | | | | | | | |
 | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — |
 | — | — | — | — | — | 5:19 | — | — | — | — | — | — | — | 5:17 | — | — | — | — | — | — | — | 5:16 | — | — |
— | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 14 | 14 | 16 | 16 | 16 | 15 | 15 | 16 | 15 | 14 | 15 | 16 | 16 | 14 | 14 | 14 | 14 | 14 | 16 | 16 | 17 | 15 | 15 |
13 | 14 | 14 | 16 | 13 | 13 | 12 | 12 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 12 | 13 | 13 | 15 | 14 | 14 | |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | S 11 | SW 10 | W 8 | W 7 | — | — | — | — | WSW 8 | — | WSW 8 | SW 7 | SW 7 | W 7 | WSW 6 | SW 6 | SW 9 | WSW 9 | WSW 4 |
 kJ | 7 | 7 | 6 | 6 | 6 | 2 | 4 | 1 | 1 | — | — | — | — | 6 | — | 6 | 2 | 2 | 1 | 4 | 2 | 3 | 8 | 2 |
Swell 2 Height (m) Direction Period (s) | — | S 12 | — | — | SW 11 | — | — | SW 10 | SW 10 | — | — | — | — | W 10 | — | — | SW 9 | SW 10 | SW 10 | SW 10 | SW 10 | — | — | WSW 9 |
| kJ | — | 3 | — | — | 5 | — | — | 4 | 4 | — | — | — | — | 2 | — | — | 3 | 4 | 4 | 4 | 4 | — | — | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | WSW 3 | W 4 | W 4 | W 4 | W 4 | WSW 4 | WSW 4 | WSW 4 | WSW 4 | SW 4 | SW 4 | WSW 4 | WSW 4 | WSW 4 | WSW 5 | WSW 3 | WSW 3 | WSW 3 | — |
| kJ | — | — | — | — | — | 2 | 10 | 12 | 11 | 17 | 20 | 17 | 11 | 9 | 12 | 15 | 12 | 7 | 4 | 5 | 1 | 2 | 2 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 38 | 38 | 38 | 38 | 39 | 443 | 39 | 38 | 38 | 38 | 39 | 450 | 450 | 450 | 126 | 126 | 39 | 38 | 38 | 39 | 256 | 126 | 126 | 38 |
Best forecast wave conditions in Adelaide | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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