Surf Forecasts:
Goolwa Rivermouth surf forecast from 7 Aug 2026:
- Best quality surf: Sunday 9 Aug, 3PM (local time) - 8ft (2.5m), 16s period, WSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 12 Aug, 9PM (local time) - 18ft (5.5m), 16s period, SW swell with 15,225 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 6PM (local time) - 6ft (1.9m), 17s 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 Friday (Aug 07) at 6PM. The primary swell is predicted to be 1.9m and 17s period with a secondary swell of 1.3m and 18s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Goolwa Rivermouth in the next 16 days are 5.5m 16s and forecast to arrive on Wednesday (Aug 12) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Aug 09) at 12PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Fri 7th Aug) | 6ft (1.9m) 17s |
| Best Surf | 3PM (Sun 9th Aug) | 8ft (2.5m) 16s |
| Most Powerful | 9PM (Wed 12th Aug) | 18ft (5.5m) 16s |
Table - best surf conditions forecast for Goolwa Rivermouth over the next 16 days.
Short Range ForecastModerate rain (total 17mm), heaviest on Sun night. Very mild (max 18°C on Fri afternoon, min 11°C on Sun night). Winds increasing (light winds from the NNW on Fri morning, near gales from the SW by Sun night). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Tue night. Very mild (max 16°C on Tue morning, min 10°C on Mon night). Winds decreasing (strong winds from the WSW on Wed afternoon, light winds from the W by Wed night). | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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 16 | SW 15 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | WSW 16 | SW 12 | SW 18 | SW 17 | SW 16 | SW 14 | SW 14 | WSW 17 | SW 16 | SW 13 | SW 16 | SW 16 | SSW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2054 | 1219 | 1796 | 1317 | 1187 | 992 | 604 | 3059 | 9120 | 10148 | 2912 | 3369 | 1500 | 1049 | 5837 | 7806 | 10540 | 13074 | 7602 | 5809 | 3326 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-off | off | cross-off | cross-off | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross | cross-on | cross |
High Tide | 10:05AM0.72m | 12:16PM0.80m | 1:13PM0.88m | 1:55PM0.94m | 5:04AM0.24m | 2:28PM0.94m | 3:59AM0.27m | 2:57PM0.91m | |||||||||||||
Low Tide | 10:13PM0.00m | 10:00PM-0.06m | 10:02PM-0.09m | 10:12PM-0.10m | 10:20PM-0.06m | 5:57AM0.24m | 10:24PM-0.01m | 7:31AM0.19m | 10:23PM0.04m | ||||||||||||
 |  |  |  | |  |  | |  |  | |  | | | | | |  | | | | |
 | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — |
 | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — |
mm | — | — | 2 | 2 | — | 3 | 1 | 1 | 8 | — | — | — | — | — | 8 | 1 | 1 | — | — | — | — |
Temp °C | 17 | 18 | 16 | 14 | 16 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 16 | 16 | 11 | 12 | 13 | 11 | 13 | 14 | 13 |
Feels °C | 13 | 14 | 12 | 9 | 11 | 9 | 10 | 11 | 4 | 7 | 7 | 6 | 8 | 8 | 5 | 3 | 4 | 2 | 8 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SSW 15 | — | SSW 18 | SW 11 | SW 16 | SW 14 | SW 14 | — | SW 16 | — | — | SW 16 | SSW 16 | SW 15 |
| kJ | 2054 | 1219 | 1796 | 1317 | 1187 | 992 | 604 | 897 | — | 2460 | 1445 | 3369 | 1500 | 1049 | — | 4631 | — | — | 7602 | 5809 | 3326 |
Swell 2 Height (m) Direction Period (s) | SW 19 | SW 18 | S 7 | S 7 | WNW 5 | — | SW 18 | — | — | — | SW 17 | — | S 8 | S 8 | — | WSW 20 | — | — | — | — | — |
| kJ | 96 | 642 | 4 | 1 | 3 | — | 82 | — | — | — | 2912 | — | 31 | 10 | — | 356 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SSW 20 | WSW 18 | — | — | — | — | SW 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 485 | 559 | — | — | — | — | 82 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 3 | — | N 3 | NNE 4 | N 4 | N 4 | N 4 | WSW 16 | SW 12 | SW 18 | — | — | NNW 4 | NNW 4 | WSW 17 | SW 16 | SW 13 | SW 16 | — | — | — |
| kJ | 3 | — | 5 | 28 | 7 | 14 | 18 | 3059 | 9120 | 10148 | — | — | 29 | 26 | 5837 | 7806 | 10540 | 13074 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 0 | 0 | 10 | 162 | 15 | 15 | 15 | 449 | 792 | 175 | 15 | 561 | 561 | 913 | 562 | 562 | 1077 | 554 | 178 | 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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