Surf Forecasts:
Underwater Point surf forecast from 12 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 11PM (local time) - 10ft (3.0m), 15s period, WSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 11PM (local time) - 10ft (3.0m), 15s period, WSW swell with 4,467 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 11PM (local time) - 10ft (3.0m), 15s period with WSW swell.
Best Forecast Surf Conditions for Underwater Point this week:
The surf forecast for Underwater Point over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 11PM. The primary swell is predicted to be 3.0m and 15s period with a secondary swell of 0.9m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Underwater Point in the next 16 days are 3.0m 15s and forecast to arrive on Tuesday (Sep 15) 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 7s period and expected on Saturday (Sep 12) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 15th Sep) | 10ft (3.0m) 15s |
| Best Surf | 11PM (Tue 15th Sep) | 10ft (3.0m) 15s |
| Most Powerful | 11PM (Tue 15th Sep) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Underwater Point over the next 16 days.
Short Range ForecastLight rain (total 9mm), mostly falling on Mon morning. Very mild (max 17°C on Sun afternoon, min 15°C on Sat morning). Winds decreasing (near gales from the ESE on Sat morning, light winds from the NW by Sun night). | Days 4-6 Weather SummaryHeavy rain (total 36mm), heaviest during Tue night. Very mild (max 16°C on Tue morning, min 12°C on Tue night). Winds increasing (light winds from the SE on Tue night, strong winds from the ESE by Thu night). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 15 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 12 | NW 7 | NW 7 | SW 14 | SW 16 | WSW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 12 | SW 14 | SW 13 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2038 | 3525 | 2633 | 1665 | 1119 | 732 | 473 | 556 | 386 | 387 | 1829 | 3820 | 1837 | 1319 | 854 | 840 | 652 | 992 | 886 | 2063 | 2557 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | cross-off | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:58PM1.69m | 4:16AM1.52m | 4:29PM1.63m | 4:47AM1.45m | 4:59PM1.53m | 5:18AM1.36m | 5:29PM1.41m | 5:48AM1.25m | 5:59PM1.27m | 6:21AM1.13m | 6:34PM1.13m | 7:06AM1.01m | 7:26PM1.01m | ||||||||
Low Tide | 9:48AM0.03m | 10:15PM0.01m | 10:19AM0.08m | 10:45PM0.07m | 10:49AM0.16m | 11:15PM0.17m | 11:18AM0.26m | 11:43PM0.28m | 11:47AM0.38m | 00:14AM0.41m | 12:18PM0.50m | 00:52AM0.53m | 1:00PM0.63m | 1:59AM0.64m | |||||||
 |  |  |  | |  | |  | | | |  | | |  |  | | | | | | |
 | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — |
 | — | 6:35 | — | — | 6:35 | — | — | 6:36 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:38 | — |
mm | 1 | 1 | — | — | 1 | 2 | 3 | — | 1 | — | — | 30 | 5 | 1 | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 17 | 15 | 16 | 16 | 15 | 13 | 14 | 14 | 14 | 15 | 14 | 14 | 14 | 15 |
Feels °C | 6 | 6 | 5 | 11 | 14 | 12 | 11 | 9 | 9 | 9 | 9 | 11 | 9 | 6 | 5 | 5 | 6 | 4 | 7 | 8 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 14 | SW 16 | WSW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 12 | SW 12 | SW 13 | SW 14 |
| kJ | 2038 | 3525 | 2633 | 1665 | 1119 | 732 | 473 | 349 | 241 | 387 | 1829 | 3820 | 1837 | 1319 | 854 | 840 | 652 | 992 | 734 | 2063 | 2557 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SE 9 | SE 10 | SE 9 | SE 13 | SW 18 | WSW 8 | SW 15 | W 13 | W 13 | W 13 | W 12 | W 12 | W 11 | SW 14 | ESE 8 | — |
| kJ | — | — | — | — | — | 251 | 104 | 31 | 26 | 314 | 207 | 648 | 878 | 728 | 461 | 144 | 104 | 21 | 886 | 12 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SE 13 | SW 17 | ESE 13 | SE 13 | NNW 7 | NW 6 | — | — | — | — | — | W 11 | — | — |
| kJ | — | — | — | — | — | — | — | 7 | 46 | 16 | 7 | 38 | 9 | — | — | — | — | — | 21 | — | — |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | NNW 4 | NNW 6 | NW 7 | NW 7 | NW 6 | NW 7 | — | SSE 5 | SSE 6 | SE 6 | SE 7 | SE 7 | SE 6 | SE 5 | SSE 5 | SE 5 |
| kJ | 778 | 903 | 674 | 470 | 530 | 13 | 215 | 556 | 386 | 328 | 279 | — | 98 | 239 | 386 | 363 | 451 | 247 | 119 | 92 | 73 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 187 | 31 | 26 | 26 | 2 | 65 | 397 | 58 | 220 | 220 | 26 | 37 | 37 | 37 | 51 | 48 | 37 | 314 | 416 | 31 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Underwater Point 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 Underwater Point Surf forecast
The above surf forecast table for Underwater Point provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Underwater Point can be found by selecting the local surf guide option on the grey menu. Our Underwater Point 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 (Underwater Point) 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 Underwater Point 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 Underwater Point, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 46 km (29 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 51 km (32 miles) away, Grabouw, Stellenbosch and Kayamnandi.
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