Surf Forecasts:
Goolwa Rivermouth surf forecast from 26 Aug 2026:
- Best quality surf: Friday 28 Aug, 6AM (local time) - 7ft (2.1m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 3PM (local time) - 8ft (2.4m), 18s period, SSW swell with 3,417 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 9AM (local time) - 4ft (1.2m), 14s 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 (Aug 27) at 9AM. The primary swell is predicted to be 1.2m and 14s period with a secondary swell of 0.4m and 22s. 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 2.4m 18s and forecast to arrive on Monday (Aug 31) at 3PM. Winds are predicted to be cross-offshore 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 01) at 3PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Thu 27th Aug) | 4ft (1.2m) 14s |
| Best Surf | 6AM (Fri 28th Aug) | 7ft (2.1m) 17s |
| Most Powerful | 3PM (Mon 31st Aug) | 8ft (2.4m) 18s |
Table - best surf conditions forecast for Goolwa Rivermouth over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 16°C on Thu morning, min 11°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Tue afternoon, min 11°C on Sun morning). Winds increasing (calm on Sun night, strong winds from the NW by Tue morning). | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 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 14 | SW 14 | SW 18 | SW 17 | SW 16 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 12 | SSW 17 | SSW 16 | SSW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 581 | 639 | 1042 | 2437 | 1852 | 1267 | 821 | 661 | 613 | 658 | 849 | 2351 | 1931 | 3417 | 2173 | 1591 | 1163 | 1077 | 1074 | 828 | 1422 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | glassy | cross-on | glassy | glassy | cross-on | glassy | off | cross-on | glassy | off | cross-off | off | cross-off | cross | cross | cross | cross | cross-off |
High Tide | 2:15PM0.85m | 3:16AM0.40m | 2:40PM0.83m | 3:25AM0.47m | 3:04PM0.78m | 3:40AM0.55m | 3:26PM0.70m | 3:59AM0.63m | 3:45PM0.60m | 4:22AM0.70m | 3:57PM0.49m | 4:48AM0.75m | 3:52PM0.38m | ||||||||
Low Tide | 9:33PM0.03m | 7:56AM0.19m | 9:40PM0.04m | 8:35AM0.16m | 9:45PM0.06m | 9:14AM0.15m | 9:49PM0.08m | 9:55AM0.16m | 9:51PM0.09m | 10:39AM0.20m | 9:50PM0.09m | 11:32AM0.25m | 9:44PM0.07m | ||||||||
 | |  | | | | | | | | | | | | | |  |  |  | | | |
 | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — |
 | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 12 | 13 | 13 | 12 | 16 | 18 | 17 | 19 | 20 | 14 | 14 | 14 | 13 |
Feels °C | 13 | 13 | 13 | 14 | 14 | 14 | 12 | 12 | 12 | 11 | 10 | 11 | 13 | 16 | 14 | 9 | 14 | 13 | 8 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 17 | SW 16 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 12 | SSW 17 | SSW 16 | SSW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 |
| kJ | 581 | 639 | 787 | 2437 | 1852 | 1267 | 821 | 661 | 613 | 658 | 849 | 2351 | 1931 | 3417 | 2173 | 1591 | 1163 | 1077 | 1074 | 828 | 1422 |
Swell 2 Height (m) Direction Period (s) | SW 22 | SW 20 | SW 18 | WSW 17 | SSW 16 | WSW 14 | WSW 14 | SW 24 | SW 21 | SW 20 | SW 19 | SW 22 | SW 19 | — | — | — | — | SW 18 | — | — | — |
| kJ | 118 | 377 | 1042 | 2171 | 1415 | 796 | 691 | 22 | 117 | 388 | 384 | 118 | 959 | — | — | — | — | 600 | — | — | — |
Swell 3 Height (m) Direction Period (s) | WSW 22 | SSW 20 | WSW 18 | — | — | — | — | — | — | — | WSW 19 | WSW 22 | WSW 20 | — | — | — | — | — | — | — | — |
| kJ | 91 | 259 | 854 | — | — | — | — | — | — | — | 148 | 46 | 664 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | N 3 | N 4 | WNW 4 | — | WSW 5 | WSW 6 | — |
| kJ | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 9 | 31 | — | 51 | 104 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 15 | 0 | 10 | 50 | 0 | 0 | 155 | 0 | 0 | 182 | 0 | 0 | 15 | 15 | 1005 | 913 | 15 | 391 | 554 | 17 |
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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