Surf Forecasts:
Dumps surf forecast from 8 Sep 2026:
- Best quality surf: Thursday 10 Sep, 5AM (local time) - 4.5ft (1.4m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 8PM (local time) - 7.5ft (2.3m), 18s period, SW swell with 3,183 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 11PM (local time) - 3.5ft (1.0m), 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 (Sep 08) at 11PM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.6m and 15s. 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 2.3m 18s and forecast to arrive on Tuesday (Sep 15) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Saturday (Sep 12) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 8th Sep) | 3.5ft (1.0m) 11s |
| Best Surf | 5AM (Thu 10th Sep) | 4.5ft (1.4m) 16s |
| Most Powerful | 8PM (Tue 15th Sep) | 7.5ft (2.3m) 18s |
Table - best surf conditions forecast for Dumps over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into it.
We've got a bit of a slow start, but there's some real potential if you're willing to wait for the right windows. The first few days of the run are pretty ordinary, but don't write it off just yet.
Alright, let's kick off with what's on offer. The first real surfable session comes in on Tuesday, the 8th of September. It's a small day at Dumps, with waves around 2.3ft from the WSW. The energy is moderate (257), but the wind is a cross-off, keeping things reasonably clean. The water is a shocking 53.6°, which is a massive 6.5° colder than normal for this time of year—so you're going to need a thick wetsuit, no doubt about it.
Wednesday the 9th is a slight step up. The morning sees a 3.0ft WSW swell with a 13-second period, and the energy is climbing (325). The light cross-off wind is a bonus, and the report says to expect good surf. It's not a standout, but it's a solid, fun morning session.
Now, Thursday the 10th is where things get interesting. Thursday morning delivers a solid 7.9ft SW swell, with a 14-second period. The energy is strong (2457), and with a light cross-off wind, the conditions are clean. This is big enough that it's really for experienced surfers only—it's going to be a raw, powerful wave.
The real standout window, though, is the Saturday the 12th afternoon session. The swell is 7.5ft from the SW, but the period stretches to 16 seconds, giving it some serious grunt (2770 energy). The wind is a gentle breeze from the SSE, keeping it cross-off and clean. The forecast says "excellent surf conditions for experienced surfers." This is the one to circle on your calendar. It's a big, powerful, long-period groundswell that will be stacking up nicely.
The following week is a bit of a mixed bag. Sunday the 13th shows some potential, but the wind shifts to a light cross-shore, making it a little less clean. After that, there's a rough patch from Monday the 14th through Tuesday the 15th where the wind is onshore or cross-onshore, and the swell is messy. The 21st of September is a big day, but the swell is 11.5ft from the SW with a 17-second period—that's a massive, powerful swell (6801 energy). It's too big for this break, and it'll be a beast only for the most experienced.
Overall, the best bet is the Saturday the 12th afternoon. Get on it.
Short Range ForecastMostly dry. Warm (max 26°C on Tue afternoon, min 14°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Sun night. Warm (max 23°C on Sun afternoon, min 15°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 12 | SW 11 | WSW 13 | WSW 13 | WSW 12 | SW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 11 | SW 14 | SW 16 | SW 14 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | NW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 140 | 172 | 304 | 346 | 680 | 2457 | 1859 | 1383 | 967 | 710 | 313 | 1325 | 2770 | 1956 | 1324 | 1036 | 600 | 335 | 286 | 435 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross | cross | cross-off | on | cross-on | cross |
High Tide | 2:01AM1.64m | 2:21PM1.78m | 2:41AM1.72m | 2:58PM1.86m | 3:17AM1.77m | 3:33PM1.89m | 3:51AM1.77m | 4:05PM1.88m | 4:23AM1.74m | 4:37PM1.83m | 4:54AM1.67m | 5:08PM1.74m | ||||||||
Low Tide | 7:57PM0.41m | 8:11AM0.37m | 8:38PM0.31m | 8:48AM0.30m | 9:14PM0.25m | 9:22AM0.26m | 9:48PM0.24m | 9:53AM0.27m | 10:19PM0.26m | 10:23AM0.31m | 10:48PM0.33m | 10:52AM0.38m | 11:17PM0.41m | |||||||
 |  | | |  |  | |  |  | | | | | | | |  |  | | | |
 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — |
 | 6:31 | — | — | 6:32 | — | — | 6:32 | — | — | 6:34 | — | — | 6:35 | — | — | 6:35 | — | — | 6:36 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 5 | — |
Temp °C | 26 | 21 | 20 | 20 | 16 | 17 | 18 | 15 | 17 | 19 | 15 | 17 | 19 | 18 | 21 | 23 | 19 | 18 | 16 | 15 |
Feels °C | 24 | 20 | 19 | 19 | 15 | 16 | 16 | 12 | 14 | 17 | 11 | 14 | 18 | 17 | 20 | 22 | 17 | 18 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | SW 11 | WSW 13 | WSW 13 | WSW 12 | SW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 11 | SW 14 | SW 16 | SW 14 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 |
| kJ | 140 | 172 | 304 | 346 | 680 | 2457 | 1859 | 1383 | 967 | 710 | 313 | 1325 | 2770 | 1956 | 1324 | 1036 | 600 | 335 | 272 | 228 |
Swell 2 Height (m) Direction Period (s) | SW 11 | WSW 14 | SSE 9 | S 8 | SW 17 | — | — | — | — | — | SW 14 | SSW 18 | — | S 9 | S 9 | SSE 10 | SSE 9 | SSE 8 | SE 8 | SE 12 |
| kJ | 117 | 138 | 15 | 5 | 346 | — | — | — | — | — | 200 | 127 | — | 715 | 364 | 370 | 166 | 48 | 18 | 5 |
Swell 3 Height (m) Direction Period (s) | S 10 | SSE 9 | W 11 | SE 10 | SSE 8 | — | — | — | — | — | SSW 10 | — | — | — | — | — | NNW 5 | — | — | — |
| kJ | 50 | 28 | 21 | 4 | 7 | — | — | — | — | — | 10 | — | — | — | — | — | 7 | — | — | — |
Wind waves Height (m) Direction Period (s) | S 2 | SSE 3 | S 3 | S 3 | SSE 4 | — | — | SSE 4 | S 7 | S 7 | SSE 7 | SSE 8 | SSE 8 | SSE 9 | — | — | — | NNW 5 | NNW 6 | NW 8 |
| kJ | 1 | 3 | 3 | 8 | 10 | — | — | 21 | 339 | 388 | 574 | 1001 | 1180 | 977 | — | — | — | 124 | 286 | 435 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 31 | 0 | 0 | 31 | 9 | 9 | 9 | 0 | 10 | 0 | 0 | 4 | 9 | 0 | 22 | 27 | 27 |
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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