
Surf Forecasts:
Dumps surf forecast from 5 Aug 2026:
- Best quality surf: Thursday 6 Aug, 2AM (local time) - 11ft (3.5m), 13s period, WSW swell with cross-onshore winds.
- Most powerful swell: Saturday 8 Aug, 11PM (local time) - 11ft (3.5m), 14s period, SW swell with 5,171 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 2AM (local time) - 11ft (3.5m), 13s 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 Thursday (Aug 06) at 2AM. The primary swell is predicted to be 3.5m and 13s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Dumps in the next 16 days are 3.5m 14s and forecast to arrive on Saturday (Aug 08) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Sunday (Aug 09) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 6th Aug) | 11ft (3.5m) 13s |
| Best Surf | 2AM (Thu 6th Aug) | 11ft (3.5m) 13s |
| Most Powerful | 11PM (Sat 8th Aug) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Dumps over the next 16 days.
The Lowdown
Alright, let’s get into it. The long-range charts are showing a proper pulse of west-northwest energy heading our way, but this swell window is a bit of a mixed bag. We’ve got a slow start, then a big, powerful, and potentially unruly middle section, and then a cleaner, juicier finish. It’s not going to be a non-stop party, but there are definitely some windows where Dumps will be the place to be.
The first real call is Wednesday the 5th. It’s not going to be pretty. We’re looking at a solid 7ft of southwest swell pushing through, but a 25 km/h north-northwest cross-on breeze is going to chop it right up. The energy is already showing strong (2390), but the surface is going to be a mess. Not worth suiting up for unless you’re desperate for a paddle.
Thursday the 6th is where things get interesting. The swell jumps to 12ft, and while the period drops a bit to 13 seconds, the wind swings around to the southeast and becomes a light cross-off. That’s a big improvement for quality. The energy is pumping (3672), but at this size, Dumps is going to be a handful. This is for experienced surfers only. It’s clean, but it’s powerful and relentless.
Friday the 7th is the standout of this first week. We’ve got a solid 10ft of southwest swell, a 14-second period, and a light southeast offshore breeze in the morning. The energy is strong (4062), and the conditions are described as excellent for experienced surfers. This is the day to be out there if you can handle it. The afternoon sees the swell bump up to 12ft with a bit of a cross-shore ripple, but the morning is the clear winner.
The weekend is a step down. Saturday the 8th starts with a cleaner 8ft of southwest swell and a light offshore wind. It’s still solid, but the energy drops off (2376). It’s still a good option for the more experienced crew. Sunday the 9th is a write-off. The swell is big (12ft) but the wind is howling at 45 km/h from the southeast. By the afternoon it jumps to 15ft with a massive energy reading (7830), but it’s going to be a washing machine. Not worth it.
After that, we get a bit of a lull. Monday the 10th and Tuesday the 11th are small and weak. The swell drops to 5ft and the energy is low (638). Not much happening. Tuesday afternoon does look clean with a light offshore wind, but it’s small.
The second week starts to show some promise. Wednesday the 12th has a nice pulse of long-period southwest swell (18 seconds) at 5ft. That’s a classic groundswell, and with light offshore winds, it should be clean and lined up. The energy is moderate (1464). This is a good call for a wider range of surfers.
Thursday the 13th looks like the pick of the second week. The swell is 7ft from the west-southwest with a 15-second period. The wind is glassy in the morning. The energy is pushing 1739, and the surf is described as excellent for experienced surfers. It’s a great day, but you’ll want to be comfortable on a bigger board.
The rest of the week is small and clean but not particularly exciting. Friday the 14th has some glassy 5ft leftovers. The weekend sees a bit of an onshore breeze and the swell fades. By the 17th, we’re looking at a short-period, wind-blown mess.
But then, the finale. The 18th and 19th see another big swell arrive. The 18th has 12ft of west-southwest swell with a strong, clean cross-off wind. The energy is pumping (3407). It’s going to be big and powerful, but clean. And then the 20th looks absolutely massive. The swell is forecast at 18ft with a 14-second period. The energy reading is off the charts at 12310. This is a serious, XXL event. Only the most experienced chargers should even think about it. It’s a long-range call, so don’t book the time off yet, but if it comes together, it could be the swell of the month.
So, to sum it up: this period starts slow, gets big and gnarly in the middle, then cleans up for a solid run in the second week, and ends with a monster. The real standouts are Friday the 7th and Thursday the 13th. The 20th is a wildcard of epic proportions, but it’s a long way out.
Rusty
Short Range ForecastModerate rain (total 11mm), heaviest on Wed night. Very mild (max 16°C on Wed afternoon, min 10°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Sat night. Very mild (max 14°C on Sat afternoon, min 9°C on Sat night). Winds increasing (calm on Sat night, strong winds from the SSE by Sun afternoon). | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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 16 | SW 15 | WSW 13 | WSW 13 | SW 12 | SW 13 | SW 14 | SW 15 | SW 14 | SW 13 | SW 14 | SW 13 | SW 13 | SSW 11 | SW 12 | SW 11 | SW 11 | SSW 13 | SSW 12 | SSW 12 | SW 20 |
Wave Graph | |||||||||||||||||||||
2295 | 2326 | 4852 | 3672 | 3459 | 3267 | 4062 | 4815 | 3827 | 2376 | 3404 | 5133 | 3495 | 4651 | 1160 | 638 | 414 | 563 | 634 | 422 | 1312 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off |
High Tide | 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 | 2:36PM1.73m | 2:54AM1.73m | ||||||||
Low Tide | 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 | 8:24AM0.35m | 8:50PM0.36m | ||||||||
7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | |
— | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | |
mm | — | — | 10 | 1 | — | — | — | — | — | — | — | 9 | 8 | 1 | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 13 | 13 | 13 | 11 | 12 | 16 | 13 | 13 | 14 | 14 | 11 | 12 | 12 | 12 | 13 | 11 | 11 | 16 | 13 |
Feels °C | 11 | 11 | 9 | 11 | 9 | 6 | 10 | 15 | 12 | 10 | 11 | 13 | 1 | 2 | 3 | 4 | 4 | 3 | 9 | 13 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | WSW 13 | WSW 13 | SW 12 | SW 13 | SW 14 | SW 15 | SW 14 | SW 13 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SSW 13 | SSW 12 | SSW 12 | SW 20 |
2295 | 2326 | 4852 | 3672 | 3459 | 3267 | 4062 | 4815 | 3827 | 2376 | 3404 | 5133 | 3495 | 3179 | 1160 | 638 | 414 | 563 | 634 | 422 | 1312 | |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | SSW 10 | — | SSW 13 | SW 10 | WSW 10 | SSE 8 | SSE 9 |
41 | 25 | — | — | — | — | — | — | — | — | — | — | — | — | 232 | — | 98 | 157 | 59 | 136 | 135 | |
Swell 3 Height (m) Direction Period (s) | ESE 10 | W 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 10 | SW 26 | SW 23 | SSW 11 |
10 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 154 | 26 | 268 | 176 | |
Wind waves Height (m) Direction Period (s) | NNW 5 | NW 5 | — | — | — | SE 4 | — | — | — | — | — | — | SSE 7 | SSW 11 | S 9 | SSE 10 | SSE 10 | SSE 10 | SSE 8 | SE 8 | SE 8 |
54 | 106 | — | — | — | 45 | — | — | — | — | — | — | 529 | 4651 | 1014 | 860 | 1032 | 717 | 202 | 435 | 375 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 70 | 336 | 22 | 4 | 60 | 0 | 0 | 9 | 0 | 0 | 9 | 173 | 338 | 1410 | 2690 | 176 | 2835 | 0 | 0 | 0 | 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.











