Surf Forecasts:
Goolwa Rivermouth surf forecast from 26 Sep 2026:
- Best quality surf: Saturday 26 Sep, 9PM (local time) - 7ft (2.1m), 18s period, SW swell with cross-shore winds.
- Most powerful swell: Friday 2 Oct, 9AM (local time) - 8ft (2.5m), 16s period, SW swell with 2,982 kJ wave energy.
- Next surfable swell (1★+): Saturday 26 Sep, 9PM (local time) - 7ft (2.1m), 18s 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 Saturday (Sep 26) at 9PM. The primary swell is predicted to be 2.1m and 18s period with a secondary swell of 1.2m and 7s. Another secondary swell of 1.6m and 7s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Goolwa Rivermouth in the next 16 days are 2.5m 16s and forecast to arrive on Friday (Oct 02) at 9AM. 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 Tuesday (Sep 29) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 26th Sep) | 7ft (2.1m) 18s |
| Best Surf | 9PM (Sat 26th Sep) | 7ft (2.1m) 18s |
| Most Powerful | 9AM (Fri 2nd Oct) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Goolwa Rivermouth over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Sat afternoon. Warm (max 24°C on Mon afternoon, min 6°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Wed night. Warm (max 31°C on Tue morning, min 11°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the W by Thu night). | ||||||||||||||||||||
Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | |||||||||||||||
AM | 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 13 | SW 19 | SW 17 | SW 16 | SW 16 | SW 15 | SSW 14 | SSW 13 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SW 15 | SW 15 | SW 14 | SW 15 | SW 16 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 569 | 1430 | 2541 | 1916 | 1591 | 1045 | 799 | 553 | 390 | 957 | 921 | 1069 | 1479 | 1356 | 1323 | 940 | 928 | 1833 | 2982 | 1006 | 1074 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-off | cross-on | cross-off | cross-off | cross-off | off | off | cross-off | cross | cross-on | on | glassy | cross-off | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 2:08PM0.65m | 2:41AM0.62m | 2:38PM0.57m | 2:59AM0.71m | 3:03PM0.47m | 3:22AM0.79m | 3:22PM0.36m | 3:50AM0.85m | 3:25PM0.27m | 4:22AM0.87m | 2:34PM0.21m | 5:01AM0.86m | |||||||||
Low Tide | 8:29PM0.12m | 8:46AM0.16m | 8:32PM0.13m | 9:33AM0.14m | 8:32PM0.14m | 10:23AM0.14m | 8:30PM0.12m | 11:23AM0.17m | 8:26PM0.09m | 1:05PM0.20m | 8:22PM0.05m | 8:19PM0.02m | |||||||||
 | |  |  |  | | | | |  | |  | | |  |  | | | | | | |
 | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:52 | — | — | 5:52 | — | — | 5:50 | — | — |
 | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — |
mm | 2 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 9 | 2 | — | — | — | — |
Temp °C | 11 | 11 | 11 | 11 | 13 | 13 | 20 | 24 | 22 | 31 | 30 | 19 | 18 | 19 | 15 | 14 | 14 | 14 | 13 | 13 | 12 |
Feels °C | 6 | 7 | 7 | 5 | 8 | 8 | 15 | 19 | 16 | 24 | 25 | 18 | 17 | 18 | 14 | 13 | 14 | 12 | 5 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 19 | SW 17 | SW 16 | SW 16 | SW 15 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SW 15 | SW 15 | SW 14 | SW 15 | SW 16 | SW 15 | SW 15 |
| kJ | 569 | 1430 | 2541 | 1916 | 1591 | 1045 | 799 | 553 | 341 | 957 | 921 | 1069 | 1479 | 1356 | 1323 | 940 | 928 | 1380 | 1513 | 1006 | 1074 |
Swell 2 Height (m) Direction Period (s) | SW 20 | SW 13 | — | S 7 | — | S 7 | SSE 7 | SSW 20 | SSW 18 | — | — | WSW 4 | WSW 4 | — | — | — | — | — | — | — | SW 8 |
| kJ | 493 | 437 | — | 93 | — | 94 | 47 | 38 | 390 | — | — | 8 | 6 | — | — | — | — | — | — | — | 117 |
Swell 3 Height (m) Direction Period (s) | SSW 21 | WSW 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 385 | 876 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 6 | S 7 | SSE 7 | SSE 7 | ENE 3 | ENE 3 | NE 3 | NNE 3 | NNE 4 | N 4 | — | W 4 | SW 4 | — | NE 3 | NW 3 | SW 15 | SW 16 | SSW 9 | S 9 |
| kJ | 37 | 72 | 212 | 135 | 75 | 2 | 5 | 2 | 9 | 24 | 7 | — | 11 | 5 | — | 2 | 2 | 1833 | 2982 | 549 | 380 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 644 | 1091 | 756 | 645 | 465 | 10 | 19 | 19 | 18 | 10 | 17 | 15 | 17 | 10 | 0 | 0 | 155 | 391 | 1002 | 155 | 155 |
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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