Surf Forecasts:
Dump Beach surf forecast from 19 Aug 2026:
- Best quality surf: Friday 21 Aug, 12AM (local time) - 5ft (1.6m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 12PM (local time) - 11ft (3.5m), 13s period, SW swell with 3,804 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 9PM (local time) - 5ft (1.6m), 10s period with WSW swell.
Best Forecast Surf Conditions for Dump Beach this week:
The surf forecast for Dump Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 9PM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.7m and 14s. Another secondary swell of 0.4m and 19s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Dump Beach in the next 16 days are 3.5m 13s and forecast to arrive on Tuesday (Aug 25) at 12PM. 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 Wednesday (Aug 19) at 12PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 19th Aug) | 5ft (1.6m) 10s |
| Best Surf | 12AM (Fri 21st Aug) | 5ft (1.6m) 16s |
| Most Powerful | 12PM (Tue 25th Aug) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Dump Beach over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 15°C on Wed afternoon, min 11°C on Thu night). Winds decreasing (fresh winds from the NW on Wed morning, light winds from the WSW by Thu night). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Mon morning. Very mild (max 16°C on Sun morning, min 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | SSW 16 | SSW 15 | SW 14 | SSW 16 | SSW 16 | SW 16 | SW 14 | SW 14 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 13 | SW 13 | SSW 12 | SSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 314 | 279 | 465 | 322 | 318 | 1333 | 1253 | 1203 | 2750 | 2986 | 2336 | 1772 | 1538 | 2102 | 1275 | 722 | 663 | 679 | 3010 | 3741 | 2171 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | off | cross-off | cross-off | cross | cross | cross-off | cross | cross-on | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:47PM0.96m | 4:20AM1.07m | 2:36PM0.94m | 5:04AM1.04m | 6:12AM0.99m | 11:23AM1.13m | 11:44AM1.18m | 00:40AM0.59m | 12:05PM1.20m | 00:37AM0.61m | |||||||||||
Low Tide | 8:53PM0.38m | 9:14AM0.83m | 9:03PM0.40m | 8:38AM0.94m | 9:06PM0.42m | 7:35AM0.99m | 9:02PM0.45m | 8:54PM0.45m | 8:42PM0.45m | 8:26PM0.43m | |||||||||||
 |  |  | | | | | |  | | | | |  |  |  | |  | | | | |
 | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:45 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 1 | — | — |
Temp °C | 14 | 15 | 13 | 15 | 15 | 13 | 14 | 14 | 14 | 14 | 14 | 11 | 16 | 16 | 14 | 16 | 16 | 12 | 13 | 12 | 12 |
Feels °C | 8 | 10 | 10 | 9 | 10 | 11 | 11 | 11 | 12 | 12 | 12 | 10 | 13 | 13 | 12 | 12 | 13 | 9 | 8 | 7 | 8 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SW 14 | SW 13 | SW 13 | SW 16 | SW 14 | SW 14 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 13 | SSW 16 | — | — |
| kJ | 314 | 279 | 465 | 277 | 273 | 1333 | 1253 | 1203 | 2750 | 2986 | 2336 | 1772 | 1538 | 2102 | 1275 | 722 | 663 | 679 | 326 | — | — |
Swell 2 Height (m) Direction Period (s) | — | SW 10 | SW 18 | SSW 16 | SW 7 | WSW 16 | SSW 18 | SSW 18 | — | SSW 24 | SSW 21 | SSW 19 | SSW 18 | SSW 16 | — | SSW 20 | SW 20 | SSW 18 | — | — | — |
| kJ | — | 82 | 162 | 322 | 63 | 788 | 534 | 541 | — | 54 | 302 | 774 | 759 | 1451 | — | 40 | 60 | 123 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | SSW 20 | SW 18 | SW 7 | SSW 16 | — | SW 18 | SSW 18 | — | — | WSW 21 | — | — | — | — | — | WSW 20 | — | — | — | — |
| kJ | — | 40 | 164 | 62 | 318 | — | 703 | 497 | — | — | 180 | — | — | — | — | — | 75 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | W 4 | WSW 7 | NW 3 | NW 4 | WSW 10 | — | — | — | — | — | — | — | — | — | NW 3 | WNW 4 | SW 6 | SW 13 | SSW 12 | SSW 12 |
| kJ | 28 | 38 | 131 | 7 | 12 | 363 | — | — | — | — | — | — | — | — | — | 5 | 17 | 128 | 3010 | 3741 | 2171 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 343 | 406 | 0 | 0 | 406 | 0 | 3 | 3 | 0 | 3 | 97 | 0 | 0 | 0 | 0 | 3 | 0 | 134 | 134 | 134 | 134 |
Best forecast wave conditions in South Australia - East Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Dump Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Dump Beach Surf forecast
The above surf forecast table for Dump Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dump Beach can be found by selecting the local surf guide option on the grey menu. Our Dump Beach 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 (Dump Beach) 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 Dump Beach 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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