- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Nine Mile Reef surfForecast / Cape Town / South Africa
16 Day Weather and Surf, issued 7 am Saturday 09 May 2026 SASTForecast update in hr min s Forecast update imminent
Nine Mile Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nine Mile Reef sea temperature is
17.7° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Nine Mile Reef this week:
The surf forecast for Nine Mile Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 10) at 11PM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 0.3m and 11s. Another secondary swell of 0.1m and 15s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Nine Mile Reef in the next 16 days are 5.0m 12s and forecast to arrive on Monday (May 11) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 7s period and expected on Monday (May 11) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 10th May) | 10ft (3.0m) 12s |
| Best Surf | 11PM (Sun 10th May) | 10ft (3.0m) 12s |
| Most Powerful | 2AM (Mon 11th May) | 16ft (5.0m) 12s |
Table - best surf conditions forecast for Nine Mile Reef over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 79mm), heaviest during Mon morning. Very mild (max 18°C on Sat afternoon, min 12°C on Sun morning). Winds increasing (light winds from the N on Sat morning, gales from the NNW by Mon morning). | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Tue morning. Very mild (max 18°C on Tue afternoon, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 9 | Sunday 10 | Monday 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SW 14 | SW 14 | SW 13 | SW 8 | WSW 8 | WSW 12 | S 9 | SSE 9 | SW 13 | SW 13 | SW 13 | SSW 12 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 14 | S 14 | SW 15 | S 14 | S 13 | |
404 | 273 | 212 | 288 | 1413 | 7171 | 42 | 28 | 3198 | 2445 | 2515 | 1985 | 3198 | 2244 | 1569 | 1041 | 2202 | 2247 | 2913 | 1553 | 1104 | |
Wind (km/h) | |||||||||||||||||||||
off | cross-off | off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | glassy | on | on | on | on | on | cross-on | |
High Tide | 8:02AM1.02m | 9:09PM1.10m | 9:35AM1.02m | 10:24PM1.17m | 10:55AM1.08m | 11:22PM1.28m | 11:55AM1.19m | 00:11AM1.40m | 12:45PM1.30m | 00:56AM1.52m | 1:30PM1.41m | 1:40AM1.61m | 2:14PM1.49m | 2:24AM1.67m | |||||||
Low Tide | 2:22PM0.55m | 3:33AM0.62m | 3:46PM0.54m | 4:54AM0.53m | 4:58PM0.49m | 5:52AM0.40m | 5:54PM0.40m | 6:39AM0.25m | 6:43PM0.31m | 7:22AM0.12m | 7:29PM0.22m | 8:04AM0.02m | 8:13PM0.15m | ||||||||
 |  |  |  | |  |  | |  | |  | |  | |  | | | | | | | |
 | 7:24 | — | — | 7:26 | — | — | 7:26 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:30 | — | — |
 | — | 5:57 | — | — | 5:55 | — | — | 5:54 | — | — | 5:53 | — | — | 5:53 | — | — | 5:52 | — | — | 5:52 | — |
— | — | 8 | 7 | 7 | 6 | 15 | 15 | 21 | 6 | 2 | 1 | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 18 | 15 | 14 | 13 | 13 | 16 | 18 | 18 | 17 | 18 | 16 | 16 | 16 | 14 | 15 | 17 | 17 | 17 | 17 | 16 |
13 | 12 | 10 | 7 | 4 | 4 | 5 | 11 | 11 | 15 | 16 | 13 | 13 | 13 | 12 | 13 | 15 | 16 | 16 | 15 | 14 | |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 13 | SW 13 | SW 8 | SE 11 | SW 12 | S 9 | SSE 9 | SW 13 | SW 13 | SW 13 | SSW 12 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 14 | S 14 | SSW 14 | S 14 | S 13 |
 kJ | 362 | 206 | 212 | 288 | 31 | 2449 | 42 | 28 | 2975 | 2445 | 2515 | 1985 | 3198 | 2244 | 1569 | 1041 | 2202 | 2247 | 2763 | 1553 | 1104 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SE 12 | SW 13 | S 15 | SE 11 | SSE 13 | — | SE 12 | — | — | — | WSW 12 | WSW 12 | WSW 12 | S 15 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 |
| kJ | 393 | 273 | 147 | 224 | 4 | 4 | 17 | — | 23 | — | — | — | 1944 | 1294 | 833 | 524 | 50 | 132 | 2913 | 1505 | 930 |
Swell 3 Height (m) Direction Period (s) | SW 14 | — | W 7 | SE 12 | — | SSE 14 | — | — | — | — | — | — | — | — | SW 20 | SW 18 | WSW 18 | WSW 16 | WSW 16 | — | — |
| kJ | 404 | — | 15 | 66 | — | 19 | — | — | — | — | — | — | — | — | 15 | 13 | 124 | 339 | 322 | — | — |
Wind waves Height (m) Direction Period (s) | — | NW 4 | N 5 | WNW 4 | WSW 8 | WSW 12 | W 7 | W 13 | WSW 13 | WNW 4 | W 12 | W 5 | — | — | — | — | — | — | — | — | SE 3 |
| kJ | — | 12 | 61 | 33 | 1413 | 7171 | 1709 | 5962 | 3198 | 19 | 2713 | 60 | — | — | — | — | — | — | — | — | 9 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 18 | 43 | 359 | 569 | 976 | 868 | 976 | 300 | 18 | 320 | 165 | 165 | 18 | 12 | 16 | 21 | 16 | 19 | 21 | 16 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Nine Mile Reef 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 Nine Mile Reef Surf forecast
The above surf forecast table for Nine Mile Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nine Mile Reef can be found by selecting the local surf guide option on the grey menu. Our Nine Mile Reef 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 (Nine Mile Reef) 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 Nine Mile Reef 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.
Nine Mile Reef is 19 km (12 miles) from the very large city of Bellville. If you plan a holiday in Cape Town, look for hotels and other accommodation in Bellville. Bellville has rooms for a wide range of budgets as well as cheap car hire and transport links.
Nearest