Surf Forecasts:
The Dump surf forecast from 20 Sep 2026:
- Best quality surf: Monday 21 Sep, 12PM (local time) - 10ft (3.0m), 15s period, SSW swell with cross-onshore winds.
- Most powerful swell: Tuesday 22 Sep, 12PM (local time) - 10ft (3.0m), 16s period, SSW swell with 4,829 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 12PM (local time) - 10ft (3.0m), 15s period with SSW swell.
Best Forecast Surf Conditions for The Dump this week:
The surf forecast for The Dump over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 21) at 12PM. The primary swell is predicted to be 3.0m and 15s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at The Dump in the next 16 days are 3.0m 16s and forecast to arrive on Tuesday (Sep 22) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Wednesday (Sep 23) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 21st Sep) | 10ft (3.0m) 15s |
| Best Surf | 12PM (Mon 21st Sep) | 10ft (3.0m) 15s |
| Most Powerful | 12PM (Tue 22nd Sep) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for The Dump over the next 16 days.
Short Range ForecastMostly dry. Warm (max 23°C on Wed afternoon, min 6°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Fri morning, min 8°C on Sat night). Winds increasing (calm on Thu night, fresh winds from the SSE by Sat afternoon). | ||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | |||||||||||||||
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 | SSW 14 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SW 12 | SSW 14 | SSW 14 | SSW 13 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4219 | 4716 | 4066 | 3651 | 4709 | 3032 | 1475 | 1226 | 965 | 734 | 512 | 410 | 319 | 236 | 561 | 553 | 894 | 1978 | 1433 | 1184 | 1076 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross-off | cross | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | glassy | cross-off | cross-on | on | on | on | cross-on | cross | cross-on | cross-off |
High Tide | 10:56AM0.97m | 11:17AM1.00m | 00:27AM0.62m | 11:39AM1.02m | 00:19AM0.67m | 12:01PM1.02m | 00:24AM0.74m | 12:23PM1.00m | 00:37AM0.82m | 12:45PM0.97m | 00:54AM0.93m | 1:05PM0.92m | 1:15AM1.03m | ||||||||
Low Tide | 8:01PM0.37m | 7:41PM0.38m | 3:47AM0.55m | 7:08PM0.37m | 4:49AM0.45m | 6:43PM0.35m | 5:31AM0.36m | 6:36PM0.33m | 6:07AM0.29m | 6:36PM0.31m | 6:41AM0.26m | 6:39PM0.29m | |||||||||
 |  |  | | | | | |  | | | | | | | | | | | | | |
 | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — |
 | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 11 | 15 | 18 | 13 | 22 | 23 | 20 | 28 | 27 | 23 | 29 | 24 | 20 | 13 | 12 | 12 | 14 | 17 | 16 |
Feels °C | 8 | 7 | 7 | 11 | 14 | 9 | 19 | 21 | 17 | 24 | 23 | 21 | 26 | 23 | 18 | 10 | 7 | 7 | 8 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SW 12 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 17 | SSW 16 | SSW 16 | SSW 14 |
| kJ | 4219 | 4716 | 4066 | 3651 | 4709 | 3032 | 1475 | 1226 | 965 | 734 | 512 | 410 | 319 | 236 | 561 | 553 | 458 | 1978 | 1433 | 1184 | 1076 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NE 3 | — | SSW 15 | SW 11 | SSW 22 | SSW 20 | SSW 19 | — | SSE 7 | SSE 7 | SSE 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | 3 | — | 72 | 115 | 185 | 360 | 894 | — | 177 | 101 | 55 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | S 25 | SSW 24 | SE 3 | S 4 | WSW 19 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 12 | 55 | 2 | 3 | 572 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 3 | — | E 4 | NE 4 | ENE 3 | NE 3 | NE 4 | — | — | — | — | SE 3 | SSE 4 | S 5 | SSE 7 | — | — | — |
| kJ | — | — | — | 7 | — | 9 | 8 | 4 | 2 | 8 | — | — | — | — | 2 | 6 | 65 | 261 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 652 | 169 | 138 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 369 | 1019 | 412 | 1022 | 449 | 412 | 1 |
Best forecast wave conditions in South Australia - East Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Dump 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 The Dump Surf forecast
The above surf forecast table for The Dump provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Dump can be found by selecting the local surf guide option on the grey menu. Our The Dump 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 (The Dump) 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 The Dump 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.
The Dump is 46 km (29 miles) from Rapid Bay. If you plan a holiday in Adelaide, look for hotels and other accommodation in Rapid Bay. Rapid Bay has rooms for a wide range of budgets as well as car hire and transport links.
Nearest