Surf Forecasts:
Goolwa Rivermouth surf forecast from 11 Jul 2026:
- Best quality surf: Sunday 12 Jul, 3AM (local time) - 11ft (3.5m), 13s period, SW swell with cross-shore winds.
- Most powerful swell: Tuesday 14 Jul, 12AM (local time) - 13ft (4.0m), 17s period, SW swell with 8,188 kJ wave energy.
- Next surfable swell (1★+): Sunday 12 Jul, 3AM (local time) - 11ft (3.5m), 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 Sunday (Jul 12) at 3AM. The primary swell is predicted to be 3.5m and 13s period. 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 4.0m 17s and forecast to arrive on Tuesday (Jul 14) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Saturday (Jul 18) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 12th Jul) | 11ft (3.5m) 13s |
| Best Surf | 3AM (Sun 12th Jul) | 11ft (3.5m) 13s |
| Most Powerful | 12AM (Tue 14th Jul) | 13ft (4.0m) 17s |
Table - best surf conditions forecast for Goolwa Rivermouth over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Sat morning. Very mild (max 15°C on Sun morning, min 10°C on Sat morning). Winds decreasing (strong winds from the WSW on Sat morning, moderate winds from the W by Mon night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Thu afternoon, min 11°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
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 14 | SW 10 | SW 12 | SW 12 | SW 13 | SW 14 | SW 16 | SW 16 | SW 17 | SW 16 | SSW 16 | SSW 15 | SSW 14 | SW 14 | SW 14 | SSW 14 | SW 14 | SW 17 | SW 16 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 401 | 1721 | 4076 | 3621 | 6290 | 4903 | 7293 | 6775 | 8188 | 6950 | 5559 | 3534 | 2313 | 1824 | 1321 | 1126 | 1170 | 2746 | 2627 | 2014 | 915 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-on | on | cross-off | off | cross-off | off | off | cross-off | off | off | off | off |
High Tide | 12:09PM0.78m | 1:16PM0.88m | 2:05PM0.96m | 2:46PM1.01m | 3:21PM1.01m | 5:02AM0.19m | 3:50PM0.97m | 4:49AM0.27m | 4:14PM0.89m | ||||||||||||
Low Tide | 10:41PM-0.06m | 10:53PM-0.11m | 11:11PM-0.12m | 11:28PM-0.09m | 11:37PM-0.03m | 7:46AM0.16m | 11:38PM0.03m | 8:48AM0.16m | 11:35PM0.07m | ||||||||||||
 |  |  |  | | | |  | | | |  | | | | | | | | | | |
 | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — |
 | — | 5:15 | — | — | 5:16 | — | — | 5:17 | — | — | 5:17 | — | — | 5:19 | — | — | 5:19 | — | — | 5:20 | — |
mm | 4 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 12 | 13 | 15 | 15 | 14 | 15 | 15 | 14 | 14 | 13 | 12 | 13 | 14 | 13 | 13 | 15 | 13 | 13 | 15 | 13 |
Feels °C | 6 | 3 | 6 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 11 | 11 | 12 | 10 | 10 | 12 | 9 | 9 | 11 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 14 | — | — | — | SW 13 | SW 14 | SW 16 | SW 16 | SW 17 | SW 16 | SSW 16 | SSW 15 | SSW 14 | SW 14 | SW 14 | SSW 14 | SW 14 | SW 17 | SW 16 | SW 15 | SW 14 |
| kJ | 401 | — | — | — | 3897 | 4903 | 7293 | 6775 | 8188 | 6950 | 5559 | 3534 | 2313 | 1824 | 1321 | 1126 | 1170 | 2746 | 2627 | 2014 | 915 |
Swell 2 Height (m) Direction Period (s) | W 6 | — | — | — | SSW 22 | SSW 18 | — | — | — | — | — | — | — | — | — | SW 22 | SW 20 | — | — | — | — |
| kJ | 19 | — | — | — | 47 | 209 | — | — | — | — | — | — | — | — | — | 18 | 106 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | WSW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 268 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 4 | SW 10 | SW 12 | SW 12 | SW 13 | — | — | — | — | — | — | — | — | — | — | NNE 3 | — | — | NNE 3 | NNE 3 | NNE 3 |
| kJ | 54 | 1721 | 4076 | 3621 | 6290 | — | — | — | — | — | — | — | — | — | — | 3 | — | — | 7 | 4 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 561 | 792 | 792 | 1002 | 1160 | 561 | 852 | 852 | 562 | 569 | 155 | 17 | 15 | 19 | 0 | 0 | 0 | 15 | 15 | 10 | 0 |
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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