
Surf Forecasts:
Dumps surf forecast from 13 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 2AM (local time) - 10ft (3.0m), 14s period, WSW swell with glassy winds.
- Most powerful swell: Tuesday 15 Sep, 11PM (local time) - 10ft (3.0m), 15s period, WSW swell with 4,029 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 2AM (local time) - 10ft (3.0m), 14s period with WSW 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 Wednesday (Sep 16) at 2AM. The primary swell is predicted to be 3.0m and 14s period with a secondary swell of 1.4m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Dumps in the next 16 days are 3.0m 15s and forecast to arrive on Tuesday (Sep 15) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Wednesday (Sep 16) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 16th Sep) | 10ft (3.0m) 14s |
| Best Surf | 2AM (Wed 16th Sep) | 10ft (3.0m) 14s |
| Most Powerful | 11PM (Tue 15th Sep) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Dumps over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let's look at what we've got on offer.
Honestly, it's a slow start. We're looking at a pretty bleak run for the first few days, with onshore winds and junk. But hang in there, because there's a proper window of clean waves opening up, and a couple of sessions that look like absolute diamonds in the rough.
The first real glimmer of hope comes on Wednesday, September 16th. The wind swings offshore and the surf cleans right up. The swell is a bit mixed up, with moderate energy (2528) and a 13-second period pushing through. The break we're looking at is Dumps, a sandbar that's inconsistent, so don't expect it to be pumping all day. It’s fairly exposed to the swell, and with 7ft from the WSW, it's got some push. This is a window for the more experienced crew.
The real standout, the one you've gotta circle on your calendar, is Saturday, September 19th. The morning is where it's at. We've got a 5ft SW groundswell with a 12-second period and only 1096 of combined energy. Nothing too crazy, but listen to this: it's glassy. Offshore wind from the SE at 6 mph. Clean as a whistle. The water temp is about average for this time of year, so a steamer might still be the call. The crowds at Dumps are a possibility, but with it being inconsistent, the crowd factor might not be as heavy. If you're out there on Saturday morning, you're in for a treat.
The next day, Sunday, September 20th, is still good, with clean 6ft SW swell, but the wind picks up a touch, making it a little less perfect than the day before. Still a solid option.
Then, looking into the following week, Monday, September 21st, is another beauty. Light winds and a clean 6ft swell from the WSW. That's another morning session that's got "very good" written all over it. The energy is a touch higher at 1240, and with a 14-second period, the sets will have some proper push.
The week after that gets interesting, but it's for the big dogs only. By Sunday, September 27th, we're looking at a massive 12ft SSW swell. The combined energy is a whopping 3962. The wind and tide are perfect, but the swell is simply too big for Dumps. This is expert-only territory. It stays big through Monday the 28th, with 12ft waves and even more energy (4570).
Finally, on Tuesday, September 29th, the swell drops back to a manageable 6ft from the SW, and the wind goes glassy. That late-season glass-off is a rare gift.
So, to boil it down: suffer through the first few days of junk. Your best bets are the clean windows from Saturday the 19th through Monday the 21st. And if you're a charger, keep an eye on the end of the month, but only if you're ready for a proper beating.
Stay stoked,
Rusty
Short Range ForecastHeavy rain (total 31mm), heaviest during Tue night. Very mild (max 18°C on Mon afternoon, min 12°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Sat afternoon, min 12°C on Fri night). Winds decreasing (strong winds from the SSE on Thu afternoon, light winds from the SSW by Sat afternoon). | ||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 12 | NW 6 | NW 8 | NW 6 | SW 16 | WSW 14 | WSW 13 | WSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 13 | SW 13 |
Wave Graph | |||||||||||||||||||
663 | 423 | 352 | 326 | 247 | 1001 | 3826 | 1752 | 799 | 865 | 1013 | 929 | 662 | 589 | 1179 | 1034 | 736 | 905 | 690 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | off | off | off | cross-off | cross-off |
High Tide | 4:54AM1.67m | 5:08PM1.74m | 5:25AM1.58m | 5:38PM1.62m | 5:57AM1.48m | 6:09PM1.50m | 6:32AM1.36m | 6:43PM1.36m | 7:19AM1.25m | 7:33PM1.24m | 8:50AM1.17m | 9:28PM1.15m | |||||||
Low Tide | 10:48PM0.33m | 10:52AM0.38m | 11:17PM0.41m | 11:21AM0.48m | 11:46PM0.52m | 11:50AM0.60m | 00:18AM0.63m | 12:24PM0.73m | 00:57AM0.74m | 1:11PM0.85m | 2:06AM0.84m | 3:12PM0.95m | 4:29AM0.87m | ||||||
— | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | |
6:35 | — | 6:36 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:38 | — | — | 6:38 | — | |
mm | 3 | 1 | 1 | 1 | 1 | — | 22 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 17 | 18 | 15 | 16 | 16 | 15 | 12 | 15 | 13 | 16 | 17 | 14 | 17 | 20 | 15 | 17 | 21 | 18 |
Feels °C | 14 | 14 | 14 | 11 | 10 | 9 | 11 | 7 | 8 | 5 | 9 | 10 | 7 | 10 | 13 | 9 | 14 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 16 | WSW 14 | WSW 13 | WSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 13 | SW 13 |
663 | 423 | 268 | 250 | 168 | 1001 | 3826 | 1752 | 799 | 865 | 1013 | 929 | 662 | 589 | 1179 | 1034 | 736 | 905 | 690 | |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SE 10 | SE 7 | — | SW 18 | SE 13 | NW 7 | SW 14 | SW 13 | W 13 | W 12 | W 12 | — | SW 15 | W 11 | SW 16 | SW 15 | — | — |
15 | 89 | 2 | — | 150 | 7 | 189 | 776 | 767 | 461 | 144 | 46 | — | 176 | 9 | 302 | 360 | — | — | |
Swell 3 Height (m) Direction Period (s) | SE 8 | — | SE 13 | — | ESE 13 | — | SW 14 | — | — | — | — | — | — | — | — | — | — | — | — |
17 | — | 6 | — | 17 | — | 447 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 5 | NW 6 | NW 8 | NW 6 | NW 7 | — | — | S 7 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 |
18 | 72 | 352 | 326 | 247 | 476 | — | — | 396 | 223 | 176 | 254 | 166 | 154 | 284 | 147 | 156 | 293 | 137 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 7 | 70 | 177 | 78 | 184 | 226 | 0 | 47 | 176 | 47 | 140 | 176 | 176 | 17 | 139 | 0 | 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.










