Surf Forecasts:
Goolwa Rivermouth surf forecast from 18 Jul 2026:
- Best quality surf: Thursday 23 Jul, 6AM (local time) - 11ft (3.5m), 14s period, SW swell with onshore winds.
- Most powerful swell: Thursday 23 Jul, 6AM (local time) - 11ft (3.5m), 14s period, SW swell with 5,140 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 9PM (local time) - 3.5ft (1.0m), 13s 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 (Jul 18) at 9PM. The primary swell is predicted to be 1.0m and 13s period with a secondary swell of 0.1m and 23s. 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 3.5m 14s and forecast to arrive on Thursday (Jul 23) at 6AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Jul 19) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 18th Jul) | 3.5ft (1.0m) 13s |
| Best Surf | 6AM (Thu 23rd Jul) | 11ft (3.5m) 14s |
| Most Powerful | 6AM (Thu 23rd Jul) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Goolwa Rivermouth over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 16°C on Sat afternoon, min 13°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 15°C on Tue afternoon, min 9°C on Thu night). Winds decreasing (fresh winds from the SSW on Wed night, light winds from the WSW by Thu night). | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 13 | SW 12 | SW 18 | SW 16 | SW 16 | SW 15 | SW 15 | SW 13 | SW 13 | SW 12 | SW 13 | SW 12 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 392 | 326 | 205 | 162 | 322 | 553 | 472 | 1020 | 834 | 669 | 471 | 1034 | 1372 | 3430 | 3434 | 2734 | 3040 | 2243 | 1759 | 1629 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-on | cross-on | on | on | on | cross-on | cross | on | cross-off |
High Tide | 4:31PM0.79m | 5:21AM0.46m | 4:43PM0.69m | 5:50AM0.54m | 4:48PM0.59m | 6:24AM0.60m | 4:40PM0.51m | 7:03AM0.62m | 4:00PM0.46m | 7:55AM0.63m | 9:37AM0.63m | |||||||||
Low Tide | 11:31PM0.09m | 10:24AM0.22m | 11:29PM0.08m | 11:08AM0.29m | 11:30PM0.06m | 11:54AM0.36m | 11:32PM0.05m | 12:53PM0.43m | 11:32PM0.05m | 11:23PM0.06m | 11:01PM0.06m | |||||||||
 |  |  | | | |  |  | | | |  | | | | | | | |  | |
 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — |
 | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 15 | 16 | 15 | 16 | 16 | 15 | 16 | 15 | 15 | 13 | 13 | 11 | 12 | 11 | 11 | 11 | 11 | 11 |
Feels °C | 14 | 13 | 11 | 13 | 12 | 13 | 13 | 12 | 13 | 11 | 11 | 8 | 6 | 3 | 6 | 5 | 7 | 8 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SW 16 | SW 16 | SW 15 | SW 15 | SW 13 | SW 13 | SW 12 | — | — | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 392 | 326 | 205 | 144 | 322 | 553 | 472 | 1020 | 834 | 669 | 471 | — | — | 3430 | 3434 | 2734 | 3040 | 2243 | 1759 | 1629 |
Swell 2 Height (m) Direction Period (s) | — | SW 22 | SW 20 | SW 18 | SSW 10 | SSW 10 | S 10 | SSW 14 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 18 | 97 | 162 | 73 | 19 | 17 | 796 | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | SW 22 | SSW 20 | SSW 11 | SW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 18 | 149 | 38 | 85 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NNE 2 | N 3 | N 3 | N 3 | NNW 3 | — | — | — | WNW 3 | W 3 | SW 13 | SW 12 | — | — | — | — | — | — | — |
| kJ | — | 1 | 2 | 1 | 1 | 3 | — | — | — | 3 | 8 | 1034 | 1372 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 10 | 561 | 574 | 185 | 155 | 155 | 17 | 15 | 50 | 15 |
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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