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Dunes Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Dunes surfForecast / Cape Town / South Africa
16 Day Weather and Surf, issued 1 pm Monday 11 May 2026 SASTForecast update in hr min s Forecast update imminent
Dunes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dunes sea temperature is
17.3° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Dunes this week:
The surf forecast for Dunes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (May 12) at 8AM. The primary swell is predicted to be 3.5m and 13s period with a secondary swell of 3.0m and 13s. Another secondary swell of 1.4m and 11s is also forecast. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Dunes in the next 16 days are 6.5m 13s and forecast to arrive on Monday (May 11) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Saturday (May 16) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Tue 12th May) | 11ft (3.5m) 13s |
| Best Surf | 8AM (Tue 12th May) | 11ft (3.5m) 13s |
| Most Powerful | 8PM (Mon 11th May) | 21ft (6.5m) 13s |
Table - best surf conditions forecast for Dunes over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 27mm), heaviest during Mon night. Very mild (max 18°C on Mon afternoon, min 14°C on Wed night). Winds decreasing (gales from the WNW on Mon afternoon, calm by Thu morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Thu night, min 14°C on Fri night). Winds increasing (calm on Thu night, strong winds from the SE by Sat night). | ||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
WNW 13 | W 12 | W 12 | SW 13 | W 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | S 14 | S 14 | S 13 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | |
11998 | 6627 | 3503 | 2891 | 2418 | 3111 | 3146 | 2002 | 1216 | 823 | 1143 | 2856 | 2012 | 1463 | 1110 | 824 | 690 | 1053 | 1337 | 1447 | 1396 | |
Wind (km/h) | |||||||||||||||||||||
on | on | cross-on | on | cross-on | cross-on | cross-on | cross-off | glassy | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | |
High Tide | 11:22PM1.27m | 11:55AM1.17m | 00:10AM1.39m | 12:45PM1.29m | 00:55AM1.50m | 1:30PM1.39m | 1:39AM1.59m | 2:14PM1.47m | 2:23AM1.65m | 2:57PM1.52m | 3:08AM1.66m | 3:42PM1.54m | 3:55AM1.62m | ||||||||
Low Tide | 4:58PM0.48m | 5:51AM0.39m | 5:54PM0.40m | 6:38AM0.25m | 6:43PM0.30m | 7:22AM0.12m | 7:28PM0.22m | 8:04AM0.02m | 8:13PM0.15m | 8:47AM-0.03m | 8:58PM0.10m | 9:30AM-0.04m | 9:45PM0.10m | 10:15AM-0.00m | |||||||
 |  |  |  |  |  | |  |  | | | | | | | | | | | | | |
 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — | 7:33 |
 | 5:55 | — | — | 5:55 | — | — | 5:54 | — | — | 5:53 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | 5:51 |
8 | 11 | 5 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 18 | 16 | 18 | 17 | 15 | 15 | 15 | 14 | 15 | 17 | 16 | 17 | 16 | 15 | 16 | 16 | 16 | 19 | 17 | 17 |
7 | 11 | 13 | 12 | 13 | 10 | 11 | 12 | 13 | 13 | 18 | 15 | 14 | 12 | 9 | 10 | 10 | 9 | 12 | 11 | 15 | |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | W 12 | SW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | S 14 | S 14 | S 13 | S 13 | WSW 13 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | WSW 14 |
 kJ | 6344 | 3471 | 3503 | 2891 | 2047 | 3111 | 3146 | 2002 | 1216 | 823 | 1143 | 2856 | 2012 | 1200 | 1110 | 824 | 690 | 1053 | 1337 | 1447 | 1396 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SE 10 | SSW 13 | W 12 | — | W 11 | W 11 | WSW 11 | WSW 11 | WSW 12 | SSW 10 | WSW 15 | WSW 15 | WSW 14 | S 12 | S 12 | S 11 | S 16 | S 11 | SSE 13 | SSW 7 |
| kJ | 18 | 4 | 3041 | 2338 | — | 1616 | 1107 | 828 | 614 | 742 | 502 | 661 | 1527 | 1463 | 635 | 469 | 242 | 5 | 143 | 102 | 61 |
Swell 3 Height (m) Direction Period (s) | SE 13 | — | — | NW 9 | — | — | — | SW 20 | SW 18 | WSW 17 | WSW 12 | WSW 12 | — | — | — | — | W 13 | — | S 15 | S 13 | SSE 13 |
| kJ | 26 | — | — | 397 | — | — | — | 15 | 81 | 119 | 475 | 250 | — | — | — | — | 3 | — | 38 | 92 | 133 |
Wind waves Height (m) Direction Period (s) | WNW 13 | W 12 | NW 9 | W 12 | W 12 | — | — | — | — | — | — | — | SSE 4 | SE 5 | SE 6 | SE 6 | SE 6 | SSE 11 | SSE 4 | SSE 10 | SE 4 |
| kJ | 11998 | 6627 | 573 | 1629 | 2418 | — | — | — | — | — | — | — | 11 | 126 | 171 | 214 | 261 | 485 | 31 | 106 | 28 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1024 | 426 | 9 | 8 | 20 | 11 | 2 | 0 | 0 | 2 | 0 | 1 | 1 | 4 | 23 | 23 | 23 | 23 | 23 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Dunes surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Dunes Surf forecast
The above surf forecast table for Dunes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dunes can be found by selecting the local surf guide option on the grey menu. Our Dunes 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 (Dunes) 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 Dunes 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 Dunes, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 24 km (15 miles) away. Other places in and around Cape Town where you can find information about places to rent, and car hire include Robben Island which is 35 km (22 miles) away, Bellville, Kayamnandi and Stellenbosch.
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