Surf Forecasts:
Dumps surf forecast from 21 Aug 2026:
- Best quality surf: Friday 21 Aug, 5AM (local time) - 7.5ft (2.3m), 12s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 8AM (local time) - 8ft (2.4m), 14s period, SW swell with 2,261 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 5AM (local time) - 7.5ft (2.3m), 12s period with SW swell.
Best Forecast Surf Conditions for Dumps this week:
The surf forecast for Dumps over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 5AM. The primary swell is predicted to be 2.3m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Dumps in the next 16 days are 2.4m 14s and forecast to arrive on Tuesday (Aug 25) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Tuesday (Aug 25) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 21st Aug) | 7.5ft (2.3m) 12s |
| Best Surf | 5AM (Fri 21st Aug) | 7.5ft (2.3m) 12s |
| Most Powerful | 8AM (Tue 25th Aug) | 8ft (2.4m) 14s |
Table - best surf conditions forecast for Dumps over the next 16 days.
The Lowdown
Alright, Rusty here again, switching to feet and miles for the imperial crew.
We've only got one spot on the radar for this 16-day stretch: Dumps. It's a sandbar set-up that doesn't fire all that often—let's just say it's an inconsistent little number. But when the stars align, it can offer up some clean, punchy wedges. The water temp is about average for this time of year, nothing too crazy.
The window opens Friday morning, August 21. That's the first real chance for a paddle. You're looking at a solid 7ft swell from the southwest, with a cross-off breeze keeping things clean. The energy is pumping with 1106 (moderate energy) and the 11-second period means decent shaped waves. It's a good start, but it gets better.
The real standout here is Sunday, August 23. The morning session is the pick of the first week. We've got a 7ft to 8ft swell from the west-southwest, cross-off wind all day, and a long 13-second period that will put some serious grunt into the waves. The combined energy jumps to 1667, which is getting into that strong zone. This is excellent surf for experienced surfers—well overhead, clean, and packing a punch. It's likely to be a favourite with the crew, so expect it to be 'sometimes' busy.
After that, Tuesday, August 25 morning is another cracker. A 8ft southwest groundswell with a 14-second period—that's very long period, so expect long lines and long lulls. The energy is strong (2157) and the offshore wind is perfect. This is proper jetty-level juice, but the long period might make it stand up a bit walled at the sandbar; still, for the experienced crew, this is a top morning.
There are a few other clean mornings in there—like Wednesday morning with a 5ft swell and offshore wind, and the 31st with glassy conditions—but nothing that dials it up like the 23rd and the 25th.
Now, a big warning: from Thursday, September 3, the swell absolutely hammers in. We're talking 16ft plus from the southwest, with combined energy up over 10,000. That's way, way too big for Dumps. The setup looks more interesting for kite surfing than paddle surfing at that size. Even if the wind is clean, that's a beast only for the very brave (or the very stupid). The 5th of September still has an 8ft swell but with a cross-on wind, so it's messy.
So, to sum it up: the first week has the goods, especially the 23rd and 25th. The second week gets massive and then messy. Don't sleep on the early window.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Fri afternoon, min 11°C on Fri morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Wed afternoon, min 12°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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 12 | SW 11 | SSW 11 | SSW 10 | SSW 12 | SW 11 | SW 12 | WSW 13 | WSW 12 | SW 12 | SW 11 | WSW 11 | SW 15 | SW 14 | SW 14 | WSW 13 | WSW 13 | WSW 12 | SW 12 |
Wave Graph | |||||||||||||||||||
1610 | 1106 | 485 | 358 | 451 | 629 | 1193 | 1387 | 1596 | 1299 | 961 | 376 | 2038 | 2157 | 1788 | 972 | 648 | 525 | 542 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | glassy | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-on |
High Tide | 8:42PM1.27m | 9:53AM1.16m | 10:27PM1.21m | 11:59AM1.20m | 00:10AM1.25m | 1:03PM1.31m | 1:08AM1.34m | 1:42PM1.42m | 1:47AM1.44m | 2:13PM1.53m | 2:20AM1.53m | 2:41PM1.63m | 2:51AM1.61m | ||||||
Low Tide | 3:29AM0.83m | 3:59PM0.91m | 5:24AM0.82m | 6:03PM0.88m | 6:38AM0.74m | 7:07PM0.78m | 7:23AM0.64m | 7:47PM0.67m | 7:57AM0.54m | 8:19PM0.57m | 8:27AM0.46m | 8:48PM0.47m | |||||||
— | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:11 | — | — | |
6:19 | — | 6:20 | — | — | 6:20 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 15 | 18 | 15 | 15 | 16 | 16 | 14 | 16 | 13 | 15 | 16 | 13 | 16 | 19 | 17 | 20 | 26 | 23 |
Feels °C | 10 | 13 | 16 | 15 | 13 | 14 | 16 | 12 | 13 | 11 | 12 | 13 | 9 | 13 | 15 | 15 | 18 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 11 | WSW 11 | SSW 10 | SSW 12 | SW 11 | SW 12 | WSW 13 | WSW 12 | SW 12 | SW 11 | WSW 11 | SW 15 | SW 14 | SW 14 | WSW 13 | WSW 13 | WSW 12 | SW 12 |
1610 | 1106 | 435 | 358 | 451 | 629 | 1193 | 1387 | 1596 | 1299 | 961 | 376 | 2038 | 2157 | 1788 | 972 | 648 | 525 | 542 | |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 10 | WSW 11 | WSW 11 | WSW 16 | WSW 14 | SSW 11 | — | — | SSW 13 | SW 10 | W 11 | — | SSW 15 | SSW 13 | SSE 7 | SSE 8 | SSE 8 |
— | — | 310 | 291 | 214 | 27 | 494 | 280 | — | — | 66 | 253 | 157 | — | 84 | 98 | 134 | 113 | 64 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 14 | — | — | WSW 10 | — | — | — | — | SW 15 | — | — | — | — | SSW 11 | SSW 11 | SSW 14 |
— | — | — | 77 | — | — | 195 | — | — | — | — | 171 | — | — | — | — | 170 | 167 | 38 | |
Wind waves Height (m) Direction Period (s) | — | SE 5 | SSW 11 | — | NW 2 | — | — | — | — | — | — | S 4 | SSE 5 | SSE 6 | SSE 6 | SSE 7 | SE 7 | SE 7 | — |
— | 56 | 485 | — | 1 | — | — | — | — | — | — | 36 | 105 | 129 | 283 | 230 | 334 | 285 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 9 | 0 | 22 | 22 | 0 | 0 | 0 | 0 | 0 | 26 | 4 | 0 | 9 | 0 | 0 | 0 | 7 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Dumps Surf forecast
The above surf forecast table for Dumps provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dumps can be found by selecting the local surf guide option on the grey menu. Our Dumps 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 (Dumps) 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 Dumps 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.
Are you planning a holiday in Cape Town? If you are looking for accommodation near Dumps, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 6 km (4 miles) away. Other places in and around Cape Town where you can find information about places to rent, and car hire include Bellville which is 14 km (9 miles) away, Robben Island, Kayamnandi and Stellenbosch.











