Surf Forecasts:
Dumps surf forecast from 2 Sep 2026:
- Best quality surf: Wednesday 2 Sep, 8PM (local time) - 8ft (2.5m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 2PM (local time) - 10ft (3.0m), 13s period, SW swell with 2,837 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 8PM (local time) - 8ft (2.5m), 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 Wednesday (Sep 02) at 8PM. The primary swell is predicted to be 2.5m and 13s 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 3.0m 13s and forecast to arrive on Wednesday (Sep 02) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Friday (Sep 04) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 2nd Sep) | 8ft (2.5m) 13s |
| Best Surf | 8PM (Wed 2nd Sep) | 8ft (2.5m) 13s |
| Most Powerful | 2PM (Wed 2nd Sep) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Dumps over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a good look at what’s coming down the line for our stretch of coast.
Right now, we’ve got a bit of a wait on our hands. The first proper call isn’t until Wednesday morning, September 2nd. Before that, it’s all flat or too messy to bother with. So, mark your calendar for Wednesday.
Wednesday the 2nd is where it starts, and it starts with a bang at Dumps. The swell is a solid 10 ft from the southwest, with a long 13-second period pushing a lot of energy through (3169). The water is sitting at 56°F, which is a whopping 5°F colder than normal for this time of year—that’s seriously chilly, so you’ll want the thickest rubber you’ve got. The wind is a light southerly, blowing cross-offshore. It’s clean, powerful, and firing. But listen, 10 ft is strictly for the experienced crew. This isn’t a beginner’s or even an intermediate’s wave. The afternoon sees some cross-shore wind and drops to 8 ft—still a lot of water moving, but the conditions get a bit more average. This first day is the standout for the whole outlook.
Thursday the 3rd is a step down in size. Morning surf is 6 ft from the WSW, still clean with light cross-off winds. Then the afternoon gets blown out hard by a 28 mph southeasterly. That’s no good for surfing, but if you’re into kites, that beach setup is going to be cooking.
Friday the 4th through to Tuesday the 8th is a pretty lean stretch. The swell drops off to under 3 ft and is mostly walled off by strong to moderate winds. Friday and Saturday have offshore winds, but the swell is so small and weak it’s barely worth paddling out for. The energy readings are in the double digits to low hundreds—just not enough grunt.
Sunday the 6th is a weird one. Morning looks incredible on paper—7 ft from the SW, a massive 18-second period groundswell, and dead calm winds. That energy is huge (2393). But here’s the rub: that long period makes it tricky for Dumps, which is an inconsistent sandbar. It might be too straight and walled up. The afternoon turns onshore and messy anyway. So, it’s a tease.
We slide through a few more quiet days until Thursday the 10th. Thursday morning is a real gem: 5 ft from the WSW, glassy conditions, with that light air. It’s clean, it’s fun, and the energy is moderate (608). That would be a great morning session for a solid intermediate.
Friday the 11th and Saturday the 12th are washouts with fresh southeasterlies, even if the swell is manageable. The energy is weak to moderate at best.
Now, hold on to your leash, because things get very interesting mid-month. Tuesday, September 15th shows a nice clean pulse in the afternoon: 5 ft from the southwest, 11-second period, light winds. The energy is ramping up (702). That’s a very good session on offer.
But the real monster, and the most promising but least certain call, lands on Wednesday, September 16th. The morning is glassy, with 5 ft of 17-second SW groundswell—that’s an absolute beast of a period, pushing massive energy (2174). It’s excellent and clean for experienced surfers. However, the afternoon forecast shows a jump to 15 ft. That is way too big for this break, even if the wind is good. The same goes for Thursday the 17th, with 12 ft and strong cross-off winds. That is expert-only territory and honestly, probably too wild for most.
So, to keep it simple: your absolute best windows are Wednesday morning, September 2nd for the big, cold, clean swell, and Thursday morning, September 10th for the glassy, fun-size waves. The long-range standouts on the 15th and 16th are promising, but we’ll need to see how they track. Don’t sleep on the 10th though—that’s a beauty.
Stay warm, stay safe out there.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Fri afternoon, min 11°C on Wed night). Winds increasing (calm on Wed night, strong winds from the SE by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 11°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | SSW 10 | SSW 10 | SW 20 | SW 18 | SW 16 | SW 15 | SW 14 | SW 13 | SSW 12 | SSW 11 | SSW 11 | WSW 14 |
Wave Graph | |||||||||||||||||||||
3169 | 2528 | 1573 | 949 | 485 | 242 | 140 | 93 | 65 | 59 | 111 | 1351 | 2393 | 1456 | 1124 | 1167 | 991 | 353 | 230 | 183 | 136 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-off | cross-off | cross-off | off | cross-off | off | off | off | off | off | on | cross-on | cross-on | on | cross-on | on | cross-on | glassy |
High Tide | 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 | 1:40PM1.65m | 2:01AM1.64m | ||||||||
Low Tide | 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 | 7:28AM0.47m | 7:57PM0.41m | ||||||||
7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | |
— | 6:28 | — | — | 6:29 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 14 | 16 | 16 | 15 | 15 | 18 | 14 | 16 | 22 | 17 | 21 | 24 | 16 | 17 | 18 | 14 | 17 | 18 | 15 |
Feels °C | 15 | 15 | 13 | 14 | 8 | 7 | 6 | 9 | 9 | 12 | 18 | 13 | 20 | 23 | 15 | 14 | 15 | 13 | 16 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | SSW 10 | SSW 10 | SW 20 | SW 18 | SW 16 | SW 15 | SW 14 | SW 13 | SSW 12 | SSW 11 | SSW 11 | SW 11 |
3169 | 2528 | 1573 | 949 | 485 | 242 | 140 | 93 | 65 | 59 | 111 | 1351 | 2393 | 1456 | 1124 | 1167 | 991 | 353 | 230 | 183 | 119 | |
Swell 2 Height (m) Direction Period (s) | — | — | S 9 | S 9 | WNW 15 | — | — | S 14 | SSW 13 | WSW 10 | WSW 10 | SSW 10 | SSE 9 | SSE 8 | SSE 7 | SSE 6 | W 20 | WSW 12 | WSW 12 | WSW 11 | WSW 14 |
— | — | 142 | 164 | 44 | — | — | 15 | 56 | 40 | 39 | 38 | 244 | 67 | 36 | 4 | 8 | 267 | 203 | 135 | 136 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 25 | WSW 10 | — | — | — | SE 14 | SSE 13 | WSW 18 | SW 16 | WSW 15 | S 9 |
— | — | — | — | — | — | — | — | — | — | 59 | 10 | — | — | — | 8 | 16 | 31 | 66 | 87 | 28 | |
Wind waves Height (m) Direction Period (s) | — | — | — | S 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SE 8 | — | — | NNW 4 | NNW 5 | NW 5 | NW 5 | — | — |
— | — | — | 269 | 1391 | 1464 | 1126 | 1226 | 832 | 573 | 447 | 455 | 569 | — | — | 25 | 42 | 14 | 7 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 10 | 4 | 0 | 902 | 176 | 1448 | 3869 | 0 | 0 | 0 | 0 | 0 | 22 | 7 | 25 | 22 | 7 | 22 | 22 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











