
Surf Forecasts:
Dumps surf forecast from 8 Aug 2026:
- Best quality surf: Sunday 9 Aug, 2AM (local time) - 11ft (3.5m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 11AM (local time) - 8ft (2.5m), 17s period, SW swell with 3,782 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 2AM (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 Sunday (Aug 09) at 2AM. The primary swell is predicted to be 3.5m 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 2.5m 17s and forecast to arrive on Thursday (Aug 13) 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 2.1m 7s period and expected on Tuesday (Aug 11) at 8AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 9th Aug) | 11ft (3.5m) 13s |
| Best Surf | 2AM (Sun 9th Aug) | 11ft (3.5m) 13s |
| Most Powerful | 11AM (Thu 13th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Dumps over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about what we've got coming up at Dumps. It's a sandbar set-up, and it can be a bit of a tricky beast – it's inconsistent, so when it fires, you gotta be on it.
The forecast kicks off with some serious, serious energy. For the first couple of days, starting Sunday the 9th, we're looking at a massive 12ft SW swell. The combined energy is pumping at a very strong 3295, but honestly, it's just too much. The wind is a fresh cross-off, but for this break, the swell is predicted to be too big. Unless you're on a gun and looking for a real fight, give it a miss. It stays big through Monday the 10th, with 8ft to 7ft SSW swell and strong cross-off winds, but the call is "marginal" – the tide just isn't playing ball with the conditions.
The real window opens up Tuesday the 11th. The swell drops to a much friendlier 6ft to 5ft from the SSW, and the wind goes light. Tuesday morning, we've got a light easterly offshore at 6 mph, and by the afternoon, it's almost glassy with a slight air. The conditions are expected to be very good. This is the first standout for me – the wave energy is still a solid 896 to 919, which is moderate, but it's the clean, workable size with offshore winds that makes it a winner.
Wednesday the 12th is the second standout. We're looking at a 6ft to 6ft SW groundswell with a very long period of 18 seconds. The energy jumps up to a strong 2217 to 2346, and the wind is a light cross-off from the ENE. This is excellent surf for experienced surfers. That long period means the waves will have real shape and power, but at a beach break like this, that long period can make them a bit bowling and fast. It'll be clean and punchy, but you'll want your wits about you.
We get a bit of a hiccup Thursday the 13th. The swell bumps back up to 8ft, and the wind picks up to a moderate breeze from the NE. The conditions are still clean, but the call is marginal due to the tide, so don't get your hopes up.
From Friday the 14th through the 16th, things get a bit messy. The wind turns cross-on and onshore, with some chop developing. The swell hangs around 6ft to 7ft, but the quality drops right off. It's a bit of a waiting game.
Then we hit another big one. On Monday the 17th, the swell pulses back up to 10ft with a very long period of 16 seconds. The combined energy is a massive 4872. Early morning, the wind is glassy with just a slight air. This is another one for experts only – too big for the average surfer, but for those who can handle it, that glassy, massive groundswell will be a serious session.
The tail end of the forecast, from the 18th to the 24th, is a mixed bag of smaller, cleaner swells and some more big, windy days. The 21st of August looks promising with a glassy morning and a clean 6ft SSW swell. But the 22nd and 23rd bring back the big stuff with cross-on winds, so expect chop.
So, to wrap it up: if you want the best of the best, you're looking at Tuesday the 11th for the clean, fun-sized waves. And for the more experienced crew looking for power, Wednesday the 12th morning is the one to circle. Keep an eye on that inconsistent nature – you'll want to be ready to move when the window opens.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Sun morning. Very mild (max 17°C on Tue afternoon, min 10°C on Mon night). Winds decreasing (fresh winds from the SSE on Sun afternoon, light winds from the ESE by Tue afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Fri afternoon, min 15°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | S 13 | SSW 12 | SSW 12 | SW 21 | SW 18 | SW 18 | SW 16 | SW 17 | WSW 17 | WSW 16 | WSW 15 | WSW 14 | WSW 14 |
Wave Graph | |||||||||||||||||||
3701 | 3295 | 3138 | 1933 | 1615 | 917 | 2468 | 876 | 541 | 1850 | 2111 | 2264 | 2201 | 3782 | 3011 | 1460 | 1145 | 1099 | 1196 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on |
High Tide | 00:01AM1.47m | 12:52PM1.45m | 1:12AM1.56m | 1:49PM1.60m | 2:07AM1.66m | 2:36PM1.73m | 2:54AM1.73m | 3:18PM1.83m | 3:36AM1.77m | 3:58PM1.88m | 4:15AM1.77m | 4:35PM1.88m | 4:52AM1.72m | ||||||
Low Tide | 6:36AM0.56m | 7:03PM0.59m | 7:36AM0.45m | 8:01PM0.46m | 8:24AM0.35m | 8:50PM0.36m | 9:06AM0.27m | 9:33PM0.28m | 9:45AM0.24m | 10:13PM0.26m | 10:21AM0.25m | 10:50PM0.28m | |||||||
— | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — | |
6:10 | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | |
mm | 1 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 13 | 13 | 13 | 14 | 11 | 12 | 17 | 16 | 20 | 24 | 24 | 23 | 26 | 25 | 25 | 27 | 22 |
Feels °C | 11 | 7 | 4 | 5 | 6 | 7 | 6 | 9 | 15 | 14 | 17 | 21 | 20 | 19 | 22 | 22 | 21 | 22 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 12 | — | SSW 11 | SSW 11 | SSW 10 | S 13 | SSW 12 | SSW 12 | SW 21 | SW 18 | SW 18 | SW 16 | SW 17 | WSW 17 | WSW 16 | WSW 15 | WSW 14 | WSW 14 |
3701 | 3295 | — | 1933 | 1336 | 917 | 2468 | 876 | 541 | 1850 | 2111 | 2264 | 2201 | 3782 | 3011 | 1460 | 1145 | 1099 | 1196 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | S 18 | SSW 14 | WSW 11 | SSE 8 | SSE 8 | SSW 11 | SW 10 | SW 10 | SW 21 | SE 9 | ESE 9 | SE 8 | N 7 | NNW 6 | SE 11 |
— | — | — | — | 6 | 326 | 66 | 162 | 136 | 247 | 106 | 82 | 1015 | 84 | 54 | 32 | 22 | 14 | 55 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 14 | — | WSW 10 | WSW 24 | SSE 9 | SE 8 | SSE 10 | SE 9 | — | — | — | SE 8 | SE 9 | — |
— | — | — | — | — | 471 | — | 20 | 378 | 135 | 39 | 38 | 31 | — | — | — | 35 | 31 | — | |
Wind waves Height (m) Direction Period (s) | — | — | SSW 12 | SSE 8 | SSW 11 | SE 6 | SE 7 | SE 8 | SE 8 | — | — | — | — | — | — | NNE 8 | — | — | — |
— | — | 3138 | 276 | 1615 | 159 | 355 | 444 | 393 | — | — | — | — | — | — | 44 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 9 | 336 | 1409 | 10 | 176 | 47 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 7 | 0 | 7 | 7 | 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.











