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The Dump Surf Forecast
/ SA – East Coast (28 breaks) / South Australia (91 breaks) /
Surf Forecasts:
The Dump surfForecast / SA – East Coast / Australia
12 Day Weather and Surf, issued 8 pm Monday 15 Sep 2025 ACST
Best Forecast Surf Conditions for The Dump this week:
The surf forecast for The Dump over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 16) at 6AM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 2.2m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Dump in the next 12 days are 5.0m 14s and forecast to arrive on Saturday (Sep 20) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (Sep 18) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 16th Sep) | 10ft (3.0m) 12s |
| Best Surf | 6AM (Tue 16th Sep) | 10ft (3.0m) 12s |
| Most Powerful | 6AM (Sat 20th Sep) | 16ft (5.0m) 14s |
Table - best surf conditions forecast for The Dump over the next 12 days.
Short Range Forecast Light rain (total 6mm), mostly falling on Mon night. Warm (max 20°C on Thu afternoon, min 10°C on Wed night). Winds decreasing (fresh winds from the WNW on Tue morning, light winds from the WNW by Wed afternoon). | Days 3-6 Weather Summary Some drizzle, heaviest during Fri afternoon. Very mild (max 17°C on Fri morning, min 10°C on Fri night). Winds increasing (calm on Thu night, strong winds from the WNW by Fri afternoon). | |||||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Mon 22 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 13 | 16 | 14 | 14 | 13 | 12 | 11 | 11 | 12 | 12 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 12 | 14 | |
Wave (?)Graph  | ||||||||||||||||||||||
| Energy (?) | 420 | 1799 | 2610 | 7699 | 3632 | 3095 | 1862 | 755 | 706 | 626 | 687 | 933 | 8594 | 5181 | 4096 | 3268 | 2883 | 2494 | 2265 | 1644 | 2979 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross | cross | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross- off | cross- on | on | |
High Tide / height (m) | 5:04AM 11:14AM 1.02 1.06 | 11:32AM 1.12 | 11:51AM 1.13 | 12:44AM 0.62 | 12:10PM 1.11 | 12:27AM 0.69 | 12:28PM 1.07 | 12:34AM 0.78 | 12:44PM 1.01 | 12:49AM 0.88 | 1:00PM 0.96 | |||||||||||
Low Tide / height (m) | 7:43AM 0.96 | 8:20PM 0.31 | 8:26PM 0.36 | 8:20PM 0.41 | 4:07AM 0.56 | 7:56PM 0.45 | 5:17AM 0.46 | 7:18PM 0.44 | 5:59AM 0.37 | 6:55PM 0.40 | 6:33AM 0.33 | |||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Mon 22 | ||||||||||||||||
| Sunrise | - | 6:13 | - | - | 6:13 | - | - | 6:11 | - | - | 6:09 | - | - | 6:09 | - | - | 6:07 | - | - | 6:05 | - | |
| Sunset | - | - | 6:06 | - | - | 6:07 | - | - | 6:07 | - | - | 6:07 | - | - | 6:08 | - | - | 6:09 | - | - | 6:09 | |
 |  |  |  |  | |  | | | | | | |  | | | | | | | | ||
Rain (mm) | 5 | 1 | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | 1 | |
| Temp. °C | 13 | 15 | 15 | 12 | 14 | 14 | 12 | 19 | 20 | 13 | 17 | 17 | 11 | 12 | 12 | 12 | 15 | 16 | 13 | 15 | 14 | |
| Feels °C (?) | 8 | 8 | 8 | 7 | 10 | 10 | 9 | 13 | 16 | 10 | 8 | 8 | 5 | 6 | 7 | 7 | 12 | 13 | 10 | 12 | 11 | |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for SA - East Coast
The wind is still cross-off at The Dump (light winds from the NNW at HindmarshIslandAws 12 km from The Dump). 1.5m 7s swell from the W with a 1.1m 13s groundswell from the SW and a 0.7m 9s swell from the WSW. 3 swells combining so expect closeout sets.
1 h 20 min ago
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 12 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.
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