Surf Forecasts:
Dumps surf forecast from 28 Aug 2026:
- Best quality surf: Wednesday 2 Sep, 5AM (local time) - 15ft (4.5m), 19s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 5AM (local time) - 15ft (4.5m), 19s period, SW swell with 13,784 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 11AM (local time) - 2.5ft (0.8m), 16s 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 Friday (Aug 28) at 11AM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 1.1m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Dumps in the next 16 days are 4.5m 19s and forecast to arrive on Wednesday (Sep 02) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Thursday (Sep 03) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Fri 28th Aug) | 2.5ft (0.8m) 16s |
| Best Surf | 5AM (Wed 2nd Sep) | 15ft (4.5m) 19s |
| Most Powerful | 5AM (Wed 2nd Sep) | 15ft (4.5m) 19s |
Table - best surf conditions forecast for Dumps over the next 16 days.
The Lowdown
G’day, I’m Rusty, and here’s how it’s looking for Dumps over the next couple of weeks.
The water is sitting at 57°F, which is about 3°F cooler than usual – a bit nippy for this time of year, so you’ll want a decent wetsuit. The outlook kicks off with a good run of clean, groomed waves, then gets a bit wild and woolly before fading out.
Friday the 28th of August starts things off beautifully. We’re looking at a glassy morning with zero wind and a 3ft WSW groundswell rolling in at a long 16 seconds. Combined energy is moderate at 680. The wave faces will be a little fat and lined up, perfect for a longboard or a mid-length. It’s a mellow start, and with the spot being inconsistent and sometimes crowded, you might have to share the takeoff zone if you sleep in.
Saturday the 29th sees the swell building. By the morning, we’ve got 5ft from the WSW with a 14-second period and clean offshore winds from the SE. The energy is stepping up to 982 – moderate but with real push. By the afternoon it’s 7ft, still clean, but a light shower rolls through and the wind swings cross-off. It’s solid intermediate territory, starting to get some grunt.
Sunday the 30th pushes into bigger territory: 8ft SW swell, still a consistent 13-second period, but the wind is a moderate cross-off from the SSE at 15 mph. The energy is tipping over 2000 (2145 morning, 1835 arvo), and while the waves are clean, this size is right on the edge for intermediate surfers. The sets will be powerful, and the beach-break peaks will be moving around. Monday the 31st drops back a notch to 7ft with light winds and clean conditions, and that’s a sweet spot – the energy is around the 1000 mark, and the long-period SW groundswell is offering grunty, well-shaped walls.
Now, Tuesday the 1st of September is a bit of a flicker. The swell bumps back up to 8ft from the SW, but the wind turns cross-onshore and the energy climbs to 2256. It’s messy and textured – still rideable for the dedicated, but not the clean bank-runner you want.
But the standout is Wednesday the 2nd of September. This is the heavy hitter. A massive 15ft SW groundswell from the 16-second period hammering in, with clean cross-off winds from the SSE. The combined energy hits 10661 – that is mega. But Dumps isn’t built for this size; it’s predicted to be too big for the break. This is for serious chargers only, and even then, the rip will be running and closeouts will be heavy. If you’re not comfortable in the 8-10ft range, sit this one out. Honestly, this kind of swell is better suited for a kite setup than a paddle board.
After that peak, Thursday the 3rd is a comedown – 8ft but with howling 28 mph cross-off winds making it a battle to even get out. Friday the 4th is still windy but offshore, with near gale conditions in the morning. Hard to paddle into, but if you’re a tow-in or a lunatic, maybe your jam.
From Saturday the 5th of September onward, the surf dribbles away. Tiny 2ft to 3ft swells, poor wind directions, and sloppy conditions dominate through to the 12th. There’s a brief blip on the 9th with a 5ft short-period swell, but at 7 seconds and a cross-off wind, it’ll be quick and crumbly – fine for a grovel board but nothing exciting.
The best windows are the Friday morning glass-off on the 28th, and the clean 7ft lines on Monday the 31st. The big Wednesday bomb is for experts only, and honestly, it might be a washout at Dumps. After the 2nd, it’s a week of small, messy leftovers with poor conditions. Expect a long stretch from the 5th through to the 12th where you’re really scratching for a ride.
Stay frothy, and I’ll catch you in the water.
- Rusty
Short Range ForecastSome drizzle, heaviest during Sat afternoon. Very mild (max 19°C on Fri afternoon, min 12°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Tue afternoon, min 11°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the SSE by Wed morning). | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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) | WSW 16 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 14 | SW 13 | SW 13 | SW 16 | SW 15 | SW 14 | WSW 13 | WSW 12 | WSW 12 |
Wave Graph | |||||||||||||||||||||
280 | 527 | 484 | 982 | 1598 | 987 | 2145 | 1835 | 1403 | 1019 | 792 | 664 | 2256 | 1945 | 3208 | 10661 | 6885 | 4247 | 1775 | 1081 | 1217 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:36PM1.78m | 3:50AM1.71m | 4:05PM1.82m | 4:21AM1.72m | 4:35PM1.83m | 4:53AM1.70m | 5:08PM1.81m | 5:28AM1.64m | 5:44PM1.74m | 6:07AM1.55m | 6:26PM1.64m | 6:55AM1.44m | 7:19PM1.51m | ||||||||
Low Tide | 9:23AM0.33m | 9:46PM0.32m | 9:52AM0.30m | 10:15PM0.29m | 10:21AM0.30m | 10:47PM0.29m | 10:52AM0.33m | 11:21PM0.34m | 11:26AM0.40m | 11:59PM0.41m | 12:04PM0.49m | 00:44AM0.52m | 12:52PM0.62m | 1:46AM0.64m | |||||||
7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — | |
— | 6:24 | — | — | 6:24 | — | — | 6:25 | — | — | 6:27 | — | — | 6:27 | — | — | 6:28 | — | — | 6:29 | — | |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 18 | 19 | 17 | 17 | 18 | 14 | 14 | 15 | 13 | 14 | 15 | 13 | 14 | 16 | 16 | 14 | 15 | 14 | 13 | 15 | 14 |
Feels °C | 18 | 18 | 16 | 15 | 14 | 10 | 8 | 9 | 8 | 11 | 11 | 11 | 12 | 13 | 15 | 7 | 9 | 9 | 5 | 6 | 5 |
Swell 1 Height (m) Direction Period (s) | S 11 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | SW 9 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 14 | SW 13 | SW 13 | SW 16 | SW 15 | SW 14 | WSW 13 | WSW 12 | WSW 12 |
279 | 527 | 484 | 982 | 1598 | 554 | 2145 | 1835 | 1403 | 1019 | 792 | 664 | 2256 | 1945 | 3208 | 10661 | 6885 | 4247 | 1775 | 1081 | 1217 | |
Swell 2 Height (m) Direction Period (s) | WSW 16 | S 10 | S 10 | SSE 11 | S 11 | WSW 13 | — | — | SSE 10 | — | SE 10 | SSW 13 | — | — | SW 20 | — | — | — | — | SSW 11 | S 10 |
280 | 168 | 98 | 95 | 61 | 987 | — | — | 10 | — | 4 | 304 | — | — | 1195 | — | — | — | — | 198 | 104 | |
Swell 3 Height (m) Direction Period (s) | WSW 11 | SSE 13 | WSW 17 | SSE 13 | S 11 | SSE 11 | — | — | — | — | — | WSW 11 | — | — | — | — | — | — | — | SW 16 | SW 15 |
121 | 57 | 117 | 68 | 86 | 23 | — | — | — | — | — | 167 | — | — | — | — | — | — | — | 39 | 77 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SSE 11 | SSE 10 | — | — | SE 3 | — | — | — | — | — | SSE 5 | — | S 11 | SSE 6 | SSE 7 |
— | — | — | — | — | — | 11 | 10 | — | — | 2 | — | — | — | — | — | 69 | — | 882 | 299 | 535 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 275 | 31 | 60 | 336 | 0 | 0 | 0 | 0 | 22 | 22 | 60 | 176 | 397 | 140 | 200 | 1084 | 1181 |
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.











