Surf Forecasts:
Dumps surf forecast from 9 Aug 2026:
- Best quality surf: Sunday 9 Aug, 5PM (local time) - 11ft (3.5m), 12s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 11AM (local time) - 8ft (2.5m), 18s period, SW swell with 3,913 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 5PM (local time) - 11ft (3.5m), 12s period with SSW 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 5PM. The primary swell is predicted to be 3.5m and 12s 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 18s 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 2.0m 7s period and expected on Tuesday (Aug 11) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 9th Aug) | 11ft (3.5m) 12s |
| Best Surf | 5PM (Sun 9th Aug) | 11ft (3.5m) 12s |
| Most Powerful | 11AM (Thu 13th Aug) | 8ft (2.5m) 18s |
Table - best surf conditions forecast for Dumps over the next 16 days.
The Lowdown
Alright, Rusty here, let’s look at what’s coming for Dumps over the next couple of weeks.
First up, the early days are a bit of a beast. Sunday the 9th brings a big 12 ft SW groundswell with a 12-second period, and a massive amount of energy (6052). But it’s way too big for this spot, over 8 ft, for experts only, and even then it’s a handful. The water’s running 57°, which is a bit colder than normal for this time of year, so you’ll want a thicker suit.
Monday the 10th settles down a little, but the wind stays fresh and conditions are iffy. Not worth the hassle.
Then it gets good. Tuesday, August 11th is a real treat. The swell drops to a clean 7 ft from the SSW, period staying around 12 seconds, and we get light offshore easterly breezes at just 10 km/h. Clean, lined-up surf with good energy (1267). This is the one to aim for in the first week – not huge, but really fun and much more approachable.
Wednesday the 12th might be the absolute best of the whole run. The swell holds at 6 ft from the SW, but the period jumps to 18 seconds – long-period groundswell. That means better shaped waves and longer gaps between sets. The wind goes glassy in the afternoon, dead calm. The wave energy is strong (2358). This will be clean, powerful, and a dream for intermediate to experienced surfers. The SW swell direction is exactly what this break wants.
Friday the 14th and Saturday the 15th have some smaller waves in the 6 ft to 6 ft range with clean winds, but nothing stand-out.
The second week revs up again on Monday, August 17th. An 8 ft SW groundswell with a 13-second period, and glassy calm conditions in the morning. This is a big wave for Dumps, only for the experienced, but on those still mornings it’ll be incredible. Energy is strong (2337). That’s the highlight of the second week.
Wednesday the 19th also looks good with clean 7 ft from the WSW and offshore ESE winds at 10 km/h. Punchy and clean for those who know their way around.
After that, from around Friday the 21st onward, it fades. Winds turn onshore, swell drops, and the quality goes south. A four or five day stretch of poor options to end the run.
Best windows: Tuesday 11th, Wednesday 12th, and Monday 17th. Mid-week perfection and a glassy Monday for the big wave crew. Expect the car park to fill up when it’s this good.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°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 25°C on Thu afternoon, min 17°C on Sat morning). Wind will be generally light. | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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) | SSW 12 | SSW 11 | SSW 11 | S 10 | S 13 | SSW 12 | SSW 12 | SW 21 | SW 18 | SW 17 | SW 16 | SW 18 | WSW 17 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3781 | 2091 | 1699 | 983 | 2468 | 919 | 550 | 1850 | 2223 | 2238 | 2173 | 3913 | 3393 | 1904 | 1356 | 1517 | 1325 | 1344 | 1267 | 1028 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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-on | glassy | glassy | cross-on | cross-on | cross-on |
High Tide | 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 | 5:11PM1.83m | ||||||||
Low Tide | 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 | 10:56AM0.29m | 11:26PM0.34m | |||||||
 |  |  | |  | | | | | | | | | | |  | | | | | |
 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — | 7:24 | — | — |
 | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 12 | 13 | 14 | 11 | 12 | 16 | 16 | 16 | 21 | 22 | 23 | 25 | 23 | 23 | 25 | 21 | 21 | 22 | 17 |
Feels °C | 5 | 4 | 6 | 7 | 6 | 9 | 13 | 13 | 12 | 18 | 18 | 18 | 19 | 20 | 19 | 22 | 20 | 19 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | — | SSW 11 | SSW 11 | SW 11 | S 13 | SSW 12 | SSW 12 | SW 21 | SW 18 | SW 17 | SW 16 | SW 18 | WSW 17 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 |
| kJ | — | 2091 | 1459 | 334 | 2468 | 919 | 550 | 1850 | 2223 | 2238 | 2173 | 3913 | 3393 | 1904 | 1356 | 1517 | 1325 | 1344 | 1267 | 1028 |
Swell 2 Height (m) Direction Period (s) | — | — | S 18 | SSW 14 | WSW 11 | SSE 8 | WSW 24 | SSW 11 | SSW 10 | SW 10 | SW 22 | SE 9 | ESE 9 | SE 5 | NNW 6 | SE 10 | NW 4 | — | SE 10 | ESE 11 |
| kJ | — | — | 6 | 322 | 66 | 166 | 381 | 251 | 135 | 64 | 671 | 70 | 52 | 29 | 4 | 51 | 6 | — | 4 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 14 | — | WSW 10 | WSW 10 | SSE 9 | SE 8 | SSE 10 | SE 9 | — | — | — | — | — | SE 11 | — | — | — |
| kJ | — | — | — | 555 | — | 20 | 40 | 161 | 32 | 54 | 31 | — | — | — | — | — | 29 | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 12 | SSE 8 | SSW 11 | S 10 | SE 7 | SE 7 | SSE 8 | SE 8 | — | SE 8 | — | — | — | — | NNW 4 | NW 4 | — | — | — | — |
| kJ | 3781 | 280 | 1699 | 983 | 321 | 421 | 136 | 433 | — | 93 | — | — | — | — | 13 | 14 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 452 | 1408 | 176 | 173 | 139 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 7 | 0 | 0 | 7 | 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.
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