Surf Forecasts:
Dumps surf forecast from 1 Sep 2026:
- Best quality surf: Tuesday 1 Sep, 8PM (local time) - 11ft (3.5m), 13s period, SW swell with cross-shore winds.
- Most powerful swell: Tuesday 1 Sep, 11PM (local time) - 11ft (3.5m), 14s period, SW swell with 3,949 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 8PM (local time) - 11ft (3.5m), 13s 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 Tuesday (Sep 01) at 8PM. The primary swell is predicted to be 3.5m and 13s period. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Dumps in the next 16 days are 3.5m 14s and forecast to arrive on Tuesday (Sep 01) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Thursday (Sep 03) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 1st Sep) | 11ft (3.5m) 13s |
| Best Surf | 8PM (Tue 1st Sep) | 11ft (3.5m) 13s |
| Most Powerful | 11PM (Tue 1st Sep) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Dumps over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks.
We’re kicking off this outlook with a bit of a slow start, but there’s some real quality brewing if you’ve got the experience. The first few days are a bit messy, but from Wednesday morning, we start seeing some cleaner conditions for the more capable surfers out there.
The big story early on is the pulse of solid 10ft swell from the SW that’s already in the water on Tuesday, but it’s a bit of a mix. Tuesday morning at Dumps is seeing a 10ft SW swell with a 13-second period, so there’s plenty of energy (combined energy of 2639). The wind is a light cross-shore, so it’s not a total write-off, but the water is a very unusual 56°F—that’s 4°F colder than normal for this time of year, so you’ll need a thick wetsuit. It’s a real standout for size, but the conditions are only marginal. Tuesday afternoon stays big with the same 10ft SW swell (energy 3415), but the wind picks up to a gentle breeze, adding a bit of chop, so it’s not the cleanest.
Now, Wednesday morning (2nd September) is where it gets interesting. We’ve still got that 10ft SW swell (energy 3169), but the wind swings to a light cross-offshore breeze, and the surf is reported as clean. This is a solid, powerful 10ft wave with excellent conditions for experienced surfers. This is a top pick for the early part of the forecast. The afternoon sees the wind go cross-shore again, so it drops off a bit.
Thursday morning (3rd September) brings a slight drop in size to 8ft from the S, with a shorter 9-second period (energy 1754). The wind is a gentle cross-offshore, keeping it clean. This is still a solid wave, definitely in the expert zone, but that shorter period means it might be a bit more crumbly. Thursday afternoon, the wind cranks up to 25 mph from the SE, completely ruining the surf.
Friday (4th September) through to Saturday (5th September) sees the swell drop right off to under 3ft, so it’s a real down period with very ordinary conditions. Sunday (6th September) morning, the swell builds back to 5ft from the SW, but with a very long 15-second period (energy 1632) and a light offshore wind. This is clean and will have proper energy, but that long period might make it a bit straight at the beach.
The next real standout is Thursday, 10th September. The morning session is looking glassy with a light offshore wind, clean 7ft swell from the WSW at a 15-second period (energy 1911). The afternoon is even better, with a 8ft swell from the same direction (energy 2061) and a clean, light cross-offshore wind. This is excellent surf, but it’s a big wave for experienced surfers only. This is the best on offer in the whole outlook.
For the rest of the second week, it’s a mix of moderate sized swell (4ft to 6ft) with generally clean but often cross-off winds. Nothing will match that Thursday 10th September session. The crowds at Dumps are indicated as possible, so don’t expect total solitude.
So, to sum it up: the best windows are Wednesday morning (2nd September) for a solid, powerful 10ft set, and especially Thursday, 10th September, for the glassy, clean 7ft to 8ft swell. If you’re a beginner, this whole period is too big or too unpredictable for you. The water is going to be unusually cold, so dress for it.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu morning. Very mild (max 17°C on Wed afternoon, min 11°C on Tue morning). Winds increasing (calm on Wed night, near gales from the SSE by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 11°C on Fri night). Winds decreasing (strong winds from the SE on Fri afternoon, light winds from the ENE by Sun night). | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 13 | SW 13 | SW 14 | SW 13 | SW 13 | WSW 13 | S 9 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 10 | SSW 10 | SSW 10 | SW 18 | SW 15 | SSW 19 | SSW 16 | S 13 | SSW 13 | SSW 12 |
Wave Graph | |||||||||||||||||||||
2639 | 3415 | 3844 | 3169 | 2682 | 1573 | 908 | 548 | 311 | 153 | 130 | 95 | 143 | 143 | 540 | 882 | 694 | 590 | 787 | 750 | 494 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | glassy | cross-off | cross | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | off | off | off | off | cross-off | glassy | cross-off | cross-on |
High Tide | 5:44PM1.74m | 6:07AM1.55m | 6:26PM1.64m | 6:55AM1.44m | 7:19PM1.51m | 8:01AM1.33m | 8:36PM1.38m | 9:45AM1.27m | 10:31PM1.33m | 11:38AM1.35m | 00:11AM1.41m | 12:50PM1.50m | 1:14AM1.53m | ||||||||
Low Tide | 11:26AM0.40m | 11:59PM0.41m | 12:04PM0.49m | 00:44AM0.52m | 12:52PM0.62m | 1:46AM0.64m | 2:06PM0.74m | 3:24AM0.73m | 4:12PM0.79m | 5:18AM0.70m | 6:02PM0.70m | 6:35AM0.59m | 7:09PM0.55m | ||||||||
7:05 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | |
— | 6:27 | — | — | 6:28 | — | — | 6:29 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | |
mm | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 13 | 15 | 17 | 14 | 14 | 15 | 15 | 15 | 19 | 14 | 15 | 21 | 16 | 19 | 24 | 22 | 25 | 27 | 23 |
Feels °C | 12 | 13 | 11 | 13 | 15 | 13 | 11 | 5 | 7 | 7 | 11 | 9 | 11 | 17 | 12 | 17 | 22 | 21 | 24 | 25 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 10 | SSW 10 | SSW 10 | SW 18 | SW 15 | SW 14 | SSW 16 | S 13 | SSW 13 | SSW 12 |
2639 | 3415 | 3844 | 3169 | 2682 | 1573 | 826 | 548 | 311 | 153 | 130 | 95 | 143 | 143 | 540 | 882 | 606 | 590 | 787 | 750 | 494 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | S 9 | W 16 | — | — | S 14 | SSW 14 | SSW 13 | WSW 10 | WSW 10 | SSW 9 | SSW 19 | SSW 19 | SSE 8 | WSW 13 | WSW 13 | W 12 |
— | — | — | — | — | 142 | 20 | — | — | 4 | 18 | 56 | 57 | 38 | 58 | 750 | 694 | 143 | 137 | 129 | 106 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | S 13 | — | SW 21 | SW 13 | — | — | WSW 14 | WSW 13 | WSW 13 | SE 4 |
— | — | — | — | — | — | — | — | — | — | — | 32 | — | 18 | 82 | — | — | 303 | 181 | 125 | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | S 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SE 8 | SSE 7 | SE 8 | SSE 8 | SSE 8 | SE 8 | — | — | — |
— | — | — | — | — | — | 908 | 1302 | 1023 | 880 | 740 | 480 | 368 | 518 | 516 | 271 | 192 | 361 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 9 | 4 | 0 | 9 | 0 | 0 | 595 | 1448 | 1418 | 231 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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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.











