Surf Forecasts:
Goolwa Rivermouth surf forecast from 3 Sep 2026:
- Best quality surf: Thursday 3 Sep, 9PM (local time) - 11ft (3.5m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 6PM (local time) - 13ft (4.0m), 19s period, SSW swell with 11,793 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 9PM (local time) - 11ft (3.5m), 15s period with SW swell.
Best Forecast Surf Conditions for Goolwa Rivermouth this week:
The surf forecast for Goolwa Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 03) at 9PM. The primary swell is predicted to be 3.5m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Goolwa Rivermouth in the next 16 days are 4.0m 19s and forecast to arrive on Wednesday (Sep 09) at 6PM. 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 4s period and expected on Saturday (Sep 05) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 3rd Sep) | 11ft (3.5m) 15s |
| Best Surf | 9PM (Thu 3rd Sep) | 11ft (3.5m) 15s |
| Most Powerful | 6PM (Wed 9th Sep) | 13ft (4.0m) 19s |
Table - best surf conditions forecast for Goolwa Rivermouth over the next 16 days.
Short Range ForecastLight rain (total 3mm), mostly falling on Fri night. Very mild (max 19°C on Fri afternoon, min 10°C on Thu night). Winds decreasing (strong winds from the WNW on Fri night, light winds from the W by Sun morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Sun afternoon, min 9°C on Mon night). Winds increasing (light winds from the SE on Tue morning, fresh winds from the SSE by Tue night). | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 14 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 11 | SW 14 | SW 13 | SW 13 | SW 14 | SW 13 | SSW 13 | SSW 12 | SSW 17 | SW 17 | SSW 16 | SSW 17 | SSW 19 | SSW 18 |
Wave Graph  | ||||||||||||||||||||
 kJ | 4158 | 5119 | 5089 | 4417 | 2962 | 5896 | 3060 | 3735 | 2098 | 1348 | 1138 | 679 | 863 | 1000 | 3378 | 2968 | 2359 | 4037 | 10651 | 10775 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | off | off | cross-off | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | off | on | cross-on | cross-on | cross-on | cross |
High Tide | 6:01AM0.77m | 7:07AM0.74m | 10:05AM0.73m | 11:55AM0.78m | 12:48PM0.82m | 4:03AM0.31m | 1:26PM0.82m | 3:00AM0.35m | ||||||||||||
Low Tide | 9:33PM0.04m | 9:20PM0.00m | 9:11PM-0.03m | 9:09PM-0.05m | 9:10PM-0.04m | 9:11PM-0.00m | 5:34AM0.30m | 9:09PM0.05m | ||||||||||||
 |  |  | |  |  | |  | | | | | | | |  |  | | | | |
 | — | — | 6:31 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — |
 | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — |
mm | — | — | 1 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 12 | 14 | 19 | 17 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 13 | 12 | 13 | 12 | 12 | 10 | 11 | 11 |
Feels °C | 9 | 9 | 12 | 16 | 10 | 5 | 6 | 11 | 12 | 11 | 11 | 10 | 9 | 9 | 11 | 9 | 7 | 3 | 5 | 5 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 15 | SW 16 | SW 16 | SW 15 | — | — | SW 14 | SW 13 | SW 13 | SW 14 | SW 13 | SW 20 | SSW 12 | SSW 17 | SW 17 | SSW 16 | SSW 17 | SSW 19 | SSW 18 |
| kJ | 4158 | 5119 | 5089 | 4417 | 2962 | — | — | 3735 | 2098 | 1348 | 1138 | 679 | 206 | 1000 | 3378 | 2968 | 2359 | 4037 | 10651 | 10775 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 23 | SW 22 | WSW 20 | SW 19 | WSW 18 | — | SW 26 | SSW 21 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 11 | 73 | 158 | 949 | 1159 | — | 171 | 2487 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | WSW 21 | — | SSW 15 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 45 | — | 142 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NNE 4 | NNE 4 | WNW 4 | SW 15 | SW 11 | — | — | — | — | — | SSW 13 | — | — | S 7 | SSE 4 | — | — | — |
| kJ | — | — | 13 | 16 | 32 | 5896 | 3060 | — | — | — | — | — | 863 | — | — | 48 | 26 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 569 | 17 | 17 | 17 | 561 | 913 | 1012 | 17 | 17 | 50 | 155 | 155 | 155 | 10 | 15 | 155 | 577 | 1042 | 1447 | 186 |
Best forecast wave conditions in South Australia - East Coast | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
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Information about the Goolwa Rivermouth Surf forecast
The above surf forecast table for Goolwa Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Goolwa Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Goolwa Rivermouth 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 (Goolwa Rivermouth) 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 Goolwa Rivermouth 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.
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