Surf Forecasts:
Dumps surf forecast from 31 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 11PM (local time) - 11ft (3.5m), 13s period, SW swell with glassy winds.
- Most powerful swell: Thursday 3 Sep, 11AM (local time) - 16ft (5.0m), 10s period, SSW swell with 5,269 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 2PM (local time) - 6ft (1.9m), 11s 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 Monday (Aug 31) at 2PM. The primary swell is predicted to be 1.9m and 11s 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 5.0m 10s and forecast to arrive on Thursday (Sep 03) at 11AM. 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 Friday (Sep 04) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Mon 31st Aug) | 6ft (1.9m) 11s |
| Best Surf | 11PM (Tue 1st Sep) | 11ft (3.5m) 13s |
| Most Powerful | 11AM (Thu 3rd Sep) | 16ft (5.0m) 10s |
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 Dumps over the next couple of weeks.
We’ve got a bit of a slow start, but once the swell kicks in, it’s going to get proper hefty. The water is sitting at 56°, which is a good 4° colder than what we’d normally expect for this time of year. That’s a notable chill, so you’ll want a good steamer.
The real action kicks off on Tuesday, the 1st of September. The morning sees a solid 10ft SW groundswell rolling in with a period of 13 seconds, packing some serious energy (2639). The wind is light cross from the SW, so it’ll be a bit lumpy, but that’s a lot of water moving. By Wednesday morning, the 2nd of September, things clean up nicely. The same 10ft SW swell is still pumping (3169 combined energy), and with a light S cross-offshore breeze, it’s going to be clean. The period is still 13 seconds, so you’ll get those long, waiting sets – makes paddling out easier between them. This is definitely the standout of the first week. Keep in mind, 10ft is getting big, so this one is for the experienced crew only.
Thursday the 3rd is a write-off. The swell jumps to 16ft from the SSW with a short 10-second period, but the wind is howling from the SSE at 28 mph. That’s just a messy, dangerous ocean. The energy reading is off the charts (6056), but it’s not for surfing. More of a kite-surfing show if anything.
We drop right off after that. The 4th and 5th of September are tiny, with a 3ft WSW swell on Friday and just 1.0ft on Saturday. The energy is weak (99-176). The wind is offshore, but there’s just nothing to ride. A gap of a few days with no real surf.
Things perk up the following week. Sunday the 6th of September has a nice 5ft SW groundswell with a 15-second period, which is a very long period. The energy is decent (975) and the wind is moderate offshore from the SE. That long period means the waves will have some real shape and punch, but at a sandbar like Dumps, it might break a little too straight. Still, clean and solid.
The next real highlight is a bit further out. Saturday the 12th of September. The swell is back up to 6ft to 7ft from the WSW, with a solid 13-second period. The energy is strong (1317-1643). The mornings look cleanest with a light S cross-off breeze. It’s a promising swell, but being that far out (nearly two weeks), the timing is less certain. Sunday the 13th stays similar, around 7ft, but the wind gets a bit stronger.
The last few days of the outlook get messy again. The 14th and 15th see the swell dropping and the wind turning onshore from the north, turning the place into a chop-fest. Not worth the paddle.
So, the real standout for the Dumps is the Wednesday morning, 2nd of September. 10ft SW, clean, powerful. For the second week, keep an eye on the 12th of September – that 6ft WSW swell with clean wind looks like the best bet if the forecast holds.
Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 17°C on Wed afternoon, min 11°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Thu afternoon. Warm (max 21°C on Sat afternoon, min 11°C on Fri night). Mainly near gales. | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | |||||||||||||||
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 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 14 | SW 13 | SW 13 | WSW 13 | SSW 10 | S 10 | S 10 | WSW 11 | WSW 11 | SW 11 | WSW 10 | WSW 10 | SW 17 | SW 15 | SW 14 | WSW 14 |
Wave Graph | |||||||||||||||||||||
1019 | 875 | 1422 | 2639 | 3364 | 3788 | 3169 | 2682 | 1700 | 5269 | 2864 | 1672 | 176 | 95 | 115 | 90 | 66 | 841 | 847 | 469 | 253 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | glassy | cross-off | cross | cross | cross-off | cross-off | cross-off | off | cross-off | off | off | cross-off | cross-off | off | off | off |
High Tide | 5:08PM1.81m | 5:28AM1.64m | 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 | ||||||||
Low Tide | 10:52AM0.33m | 11:21PM0.34m | 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 | ||||||||
7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 6:58 | — | — | 6:58 | — | — | |
— | 6:27 | — | — | 6:27 | — | — | 6:28 | — | — | 6:29 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | |
mm | — | — | — | — | — | — | — | — | — | 1 | 3 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 12 | 14 | 15 | 14 | 16 | 17 | 15 | 14 | 15 | 15 | 17 | 19 | 14 | 16 | 21 | 16 | 18 | 22 | 17 |
Feels °C | 9 | 10 | 10 | 13 | 14 | 12 | 15 | 15 | 15 | 9 | 6 | 6 | 10 | 12 | 9 | 13 | 18 | 12 | 14 | 18 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | SW 11 | SSW 10 | WSW 10 | SW 17 | SW 15 | SW 14 | SSE 9 |
1019 | 875 | 1422 | 2639 | 3364 | 3788 | 3169 | 2682 | 1700 | 787 | 494 | 372 | 176 | 95 | 115 | 77 | 65 | 841 | 847 | 469 | 355 | |
Swell 2 Height (m) Direction Period (s) | — | SE 10 | — | — | — | — | — | — | S 9 | — | — | — | — | S 15 | SSW 13 | WSW 10 | SW 20 | SSW 9 | SSW 18 | SSW 17 | WSW 14 |
— | 4 | — | — | — | — | — | — | 110 | — | — | — | — | 4 | 34 | 90 | 66 | 68 | 128 | 162 | 253 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 20 | WSW 10 | — | — | SSW 13 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 63 | 36 | — | — | 133 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SSW 10 | S 10 | S 10 | SSE 9 | SSE 9 | SSE 8 | SSE 7 | SSE 7 | SE 7 | SE 8 | SSE 9 | SE 9 |
— | — | — | — | — | — | — | — | — | 5269 | 2864 | 1672 | 1319 | 1125 | 441 | 372 | 561 | 393 | 427 | 577 | 904 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 31 | 0 | 0 | 4 | 24 | 4 | 0 | 9 | 4 | 175 | 3869 | 1071 | 1287 | 1978 | 0 | 0 | 9 | 4 | 0 | 0 | 0 |
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.











