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Surf Forecasts:
Underwater Point surfForecast / Cape Town / South Africa
16 Day Weather and Surf, issued 1 am Monday 18 May 2026 SASTForecast update in hr min s Forecast update imminent
Underwater Point surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Underwater Point sea temperature is
16.6° C
(Which is slightly cooler than normal)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 Wednesday (May 20) at 11PM. The primary swell is predicted to be 0.5m and 14s period with a secondary swell of 0.5m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Underwater Point in the next 16 days are 2.5m 13s and forecast to arrive on Monday (May 25) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 8s period and expected on Tuesday (May 19) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 20th May) | 1.5ft (0.5m) 14s |
| Best Surf | 11PM (Sat 23rd May) | 5ft (1.6m) 14s |
| Most Powerful | 8AM (Mon 25th May) | 8ft (2.5m) 13s |
Table - best surf conditions forecast for Underwater Point over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 16°C on Mon morning). Winds decreasing (near gales from the ESE on Mon night, calm by Wed night). | Days 4-6 Weather SummarySome drizzle, heaviest during Fri morning. Very mild (max 18°C on Fri afternoon, min 16°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | SW 14 | SW 13 | SW 12 | SW 18 | SW 16 | SW 16 | SW 14 | SW 13 | SW 12 | SW 14 | SW 16 | SW 16 | SW 14 | |
1244 | 975 | 745 | 528 | 451 | 233 | 180 | 119 | 95 | 199 | 144 | 314 | 504 | 560 | 833 | 659 | 505 | 947 | 653 | 871 | 2056 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross | on | on | |
High Tide | 4:28PM1.51m | 4:43AM1.54m | 5:17PM1.46m | 5:34AM1.43m | 6:11PM1.39m | 6:31AM1.30m | 7:12PM1.32m | 7:37AM1.17m | 8:23PM1.26m | 8:56AM1.09m | 9:38PM1.25m | 10:19AM1.07m | 10:47PM1.26m | ||||||||
Low Tide | 10:16AM-0.00m | 10:34PM0.14m | 11:03AM0.08m | 11:26PM0.22m | 11:53AM0.18m | 00:24AM0.31m | 12:48PM0.29m | 1:33AM0.40m | 1:52PM0.39m | 2:54AM0.46m | 3:06PM0.45m | 4:17AM0.45m | 4:22PM0.48m | ||||||||
 | |  |  | |  | |  |  | | | |  | | | | | | | | | |
 | 7:33 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — | 7:37 | — | — |
 | — | 5:50 | — | — | 5:50 | — | — | 5:49 | — | — | 5:49 | — | — | 5:47 | — | — | 5:46 | — | — | 5:46 | — |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 18 | 18 | 18 | 19 | 17 | 18 | 20 | 19 | 16 | 17 | 17 | 17 | 18 | 17 | 16 | 17 | 16 | 16 | 17 | 17 |
10 | 11 | 9 | 11 | 13 | 7 | 12 | 17 | 17 | 14 | 15 | 15 | 16 | 17 | 16 | 15 | 16 | 14 | 16 | 17 | 16 | |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | SSE 11 | SE 8 | SSE 8 | S 7 | S 6 | SW 16 | SW 16 | SW 14 | SW 13 | SW 12 | SW 14 | WSW 13 | SW 16 | SW 14 |
 kJ | 1244 | 975 | 745 | 528 | 451 | 233 | 180 | 109 | 281 | 122 | 57 | 68 | 504 | 560 | 833 | 659 | 505 | 947 | 430 | 871 | 2056 |
Swell 2 Height (m) Direction Period (s) | — | — | SE 17 | SSE 15 | SSE 14 | S 20 | SSE 12 | WSW 12 | SW 14 | SW 13 | SW 12 | WSW 11 | S 6 | WSW 11 | SW 4 | SW 16 | SW 15 | SW 18 | SW 16 | WSW 9 | SSE 11 |
| kJ | — | — | 11 | 22 | 40 | 8 | 83 | 119 | 95 | 199 | 144 | 154 | 24 | 128 | 6 | 94 | 301 | 252 | 653 | 90 | 11 |
Swell 3 Height (m) Direction Period (s) | S 10 | — | — | — | — | — | SSW 16 | SW 15 | WSW 11 | SSE 11 | SE 9 | SW 18 | SW 11 | S 7 | SE 6 | SW 4 | SW 19 | SSE 13 | SE 12 | SE 11 | E 11 |
| kJ | 31 | — | — | — | — | — | 25 | 56 | 47 | 12 | 61 | 314 | 80 | 32 | 9 | 3 | 95 | 16 | 36 | 32 | 2 |
Wind waves Height (m) Direction Period (s) | SE 6 | SSE 7 | SSE 8 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 9 | NNW 3 | NW 4 | NNW 3 | — | — | — | — | SE 6 | ESE 6 | — | — | — |
| kJ | 273 | 575 | 1310 | 1553 | 926 | 1119 | 532 | 449 | 702 | 3 | 10 | 4 | — | — | — | — | 6 | 3 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 48 | 38 | 37 | 31 | 27 | 26 | 13 | 0 | 2 | 2 | 19 | 2 | 3 | 6 | 0 | 0 | 0 | 2 | 2 | 2 |
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 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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