
Surf Forecasts:
Dumps surf forecast from 4 Aug 2026:
- Best quality surf: Thursday 6 Aug, 2AM (local time) - 11ft (3.5m), 14s period, WSW swell with cross-shore winds.
- Most powerful swell: Friday 7 Aug, 5PM (local time) - 11ft (3.5m), 15s period, SW swell with 5,377 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 5PM (local time) - 3.5ft (1.1m), 11s 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 Tuesday (Aug 04) at 5PM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.6m 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 3.5m 15s and forecast to arrive on Friday (Aug 07) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Sunday (Aug 09) at 11PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Tue 4th Aug) | 3.5ft (1.1m) 11s |
| Best Surf | 2AM (Thu 6th Aug) | 11ft (3.5m) 14s |
| Most Powerful | 5PM (Fri 7th Aug) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Dumps over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's get into it.
First up, we're looking at a solid run of days at Dumps, but not without its challenges. The water is running a bit colder than normal for this time of year, clocking in at 57°, so you might want a thicker wetsuit.
The window kicks off on Tuesday, August 4th. We've got a clean, glassy start with a 5ft swell from the southwest, period of 11 seconds. The energy is moderate (467). It's not massive, but for a Tuesday morning with barely a breath of wind, you'll be getting some fun, clean lines. The afternoon holds similar, dropping to 4ft.
Then Wednesday, August 5th gets messy. The swell jumps to 7ft, but the wind swings around to a cross-onshore, making it choppy and poor. The energy is strong (2375), but it's not worth the paddle.
Thursday the 6th brings a different story. The morning sees an 12ft WSW swell, with a period of 13 seconds, and the wind is offshore. The energy is very strong (3611). That's a proper groundswell. But the wave comment says it's too big for this break. That's for the crew on big guns only, and even then, it's a handful. The afternoon is a bit smaller at 10ft but still a solid, clean setup.
Now, Friday, August 7th is the standout. The morning session has a 10ft SW swell, 14-second period, with clean, cross-offshore winds. The energy is pumping (4871). The call is "excellent surf for experienced surfers." This is the one. The afternoon gets even bigger at 12ft, but the same warning applies – it's getting too big for the sandbar.
The weekend rolls in with Saturday, August 8th seeing a drop in size to 8ft, but the wind goes cross-shore and then onshore, making it marginal. Sunday, the 9th, is a write-off with strong winds and a massive, messy 13ft swell.
The start of the next week, Monday August 10th, looks much better. Offshore winds and a 7ft S swell, energy is strong (1275). It's a clean, surging day. The afternoon drops right off to 3ft.
Tuesday the 11th is tiny, but the afternoon has a quirky 2ft swell with a very long 24-second period. It'll be super clean, just not much push.
The next real call is Wednesday, August 12th. Two solid days of excellent surf for experienced surfers. A 6ft to 7ft SW groundswell, 17-18 second periods, and clean winds. The energy is strong (2454-2565). That's a long-period, powerful swell. It'll be peeling nicely at Dumps but be aware that long-period swells can make beach breaks sectiony.
Thursday, August 13th, the swell holds at 8ft to 8ft, with glassy conditions in the afternoon. Friday the 14th is cleaner but a touch smaller.
After that, it's a bit of a mixed bag. The weekend of the 15th and 16th is marginal with onshore winds. Then Monday, August 17th, we get a massive 13ft pulse that's way too big and blown out.
The final few days, Tuesday August 18th and Wednesday August 19th, look promising again. Offshore and cross-offshore winds, 8ft to 10ft SW swells, all clean and powerful. The energy is very strong (2704-3438). The call is excellent for experienced surfers.
So, the best on offer is hands down Friday, August 7th morning for the biggest, cleanest, most powerful swell that's still surfable. The second best is the Wednesday, August 12th to Thursday, August 13th window for cleaner, long-period groundswell.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Thu morning. Warm (max 20°C on Tue afternoon, min 11°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Sat night. Very mild (max 14°C on Fri afternoon, min 10°C on Sat morning). Winds increasing (calm on Sat morning, strong winds from the SSE by Sun morning). | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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 11 | SW 11 | SW 15 | SW 16 | SW 15 | WSW 14 | WSW 13 | SW 12 | SW 13 | SW 14 | SW 15 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SSW 10 | SW 11 | S 10 | SW 10 | SW 10 |
Wave Graph | |||||||||||||||||||||
431 | 293 | 355 | 2295 | 2326 | 4692 | 3611 | 3064 | 3217 | 3964 | 5377 | 4062 | 2376 | 2429 | 3185 | 3167 | 3006 | 1322 | 847 | 212 | 102 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | cross-on | cross-on | cross | off | cross-off | cross-off | cross-off | cross-off | glassy | cross | on | cross | cross-off | cross-off | off | off | off | off |
High Tide | 6:56PM1.63m | 7:21AM1.42m | 7:48PM1.55m | 8:24AM1.33m | 8:57PM1.47m | 9:53AM1.28m | 10:28PM1.43m | 11:34AM1.33m | 00:01AM1.47m | 12:52PM1.45m | 1:12AM1.56m | 1:49PM1.60m | 2:07AM1.66m | ||||||||
Low Tide | 12:31PM0.50m | 1:17AM0.54m | 1:19PM0.59m | 2:18AM0.62m | 2:24PM0.69m | 3:42AM0.67m | 4:01PM0.74m | 5:18AM0.64m | 5:45PM0.70m | 6:36AM0.56m | 7:03PM0.59m | 7:36AM0.45m | 8:01PM0.46m | ||||||||
7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | |
— | 6:07 | — | — | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — | — | 6:12 | — | |
mm | — | — | — | — | — | 3 | 8 | — | — | — | — | — | — | — | 10 | 2 | 1 | — | — | — | — |
Temp °C | 18 | 20 | 15 | 14 | 17 | 14 | 13 | 12 | 12 | 13 | 14 | 13 | 12 | 14 | 13 | 13 | 12 | 12 | 11 | 14 | 12 |
Feels °C | 17 | 18 | 14 | 10 | 13 | 11 | 13 | 10 | 8 | 11 | 12 | 11 | 10 | 12 | 11 | 8 | 3 | 5 | 5 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 15 | SW 16 | SW 15 | WSW 14 | WSW 13 | SW 12 | SW 13 | SW 14 | SW 15 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 10 | SW 11 | S 10 | SW 10 | SSE 9 |
431 | 293 | 355 | 2295 | 2326 | 4692 | 3611 | 3064 | 3217 | 3964 | 5377 | 4062 | 2376 | 2429 | 3185 | 3167 | 1970 | 1322 | 847 | 212 | 406 | |
Swell 2 Height (m) Direction Period (s) | WSW 11 | W 11 | SW 10 | W 9 | W 9 | — | — | — | — | SSW 16 | — | — | — | — | — | — | — | SW 11 | SW 10 | — | SW 10 |
24 | 82 | 144 | 58 | 25 | — | — | — | — | 907 | — | — | — | — | — | — | — | 125 | 428 | — | 102 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 16 | W 10 | ESE 10 | W 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 16 |
12 | 40 | 98 | 10 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | |
Wind waves Height (m) Direction Period (s) | — | — | — | NNW 4 | NW 5 | — | — | — | — | — | — | — | — | — | — | — | SSW 10 | S 10 | SSE 10 | SSE 10 | SE 9 |
— | — | — | 22 | 94 | — | — | — | — | — | — | — | — | — | — | — | 3006 | 1026 | 1177 | 768 | 836 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 7 | 86 | 336 | 173 | 4 | 9 | 0 | 0 | 4 | 0 | 10 | 22 | 139 | 1408 | 1458 | 0 | 0 | 0 | 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)
Latest Updates
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.











