Surf Forecasts:
Nine Mile Reef surf forecast from 13 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 8PM (local time) - 7ft (2.1m), 15s period, SW swell with onshore winds.
- Most powerful swell: Wednesday 15 Jul, 8PM (local time) - 7ft (2.1m), 15s period, SW swell with 1,914 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 8PM (local time) - 2ft (0.6m), 9s period with S swell.
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 Monday (Jul 13) at 8PM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.5m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Nine Mile Reef in the next 16 days are 2.1m 15s and forecast to arrive on Wednesday (Jul 15) 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 0.4m 3s period and expected on Wednesday (Jul 15) at 8AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 13th Jul) | 2ft (0.6m) 9s |
| Best Surf | 8PM (Wed 15th Jul) | 7ft (2.1m) 15s |
| Most Powerful | 8PM (Wed 15th Jul) | 7ft (2.1m) 15s |
Table - best surf conditions forecast for Nine Mile Reef over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break down the same 16-day stretch at Nine Mile Reef, but in feet and degrees this time.
First real surf you can paddle for is Monday the 13th. It’s tiny – about 2ft from the SSW, glassy, water temp around 59°, which is pretty normal for this time of year. The combined energy is weak (139), so it’s surfable but nothing to drive for.
Tuesday the 14th is even smaller with 2ft S swell, clean and light offshore wind, but barely enough to ride. Pass.
Wednesday the 15th morning is the first real standout. A 3ft SW groundswell with a 17-second period, combined energy of 641 (moderate), and glassy conditions. The reef will love that long period. Get out early – the afternoon turns onshore and messy with 6ft.
Thursday the 16th morning is another top pick: 5ft SW swell at 13 seconds, glassy calm, and combined energy of 933 (moderate). Clean, punchy, and the best of the first week. Afternoon gets onshore.
Friday the 17th is a washout – cross-onshore, choppy. Saturday the 18th is a full day of glassy conditions with 5ft to 5ft S swell, solid energy, and calm winds. Good day.
Sunday the 19th morning is glassy again with 4ft SW swell, but the afternoon turns onshore. Monday the 20th is marginal.
Then the big stuff hits. Tuesday the 21st morning brings 8ft SSW swell at 16 seconds, combined energy of 2503 (strong) – but it’s too big for this break. Glassy, but too much. Wednesday the 22nd is 10ft SW swell, fresh offshore wind in the morning at 19 mph, still too big. Thursday the 23rd is 10ft, cross-onshore, and combined energy hits 7079 – that’s way too big for paddle surfing. Might be a kite day.
Friday the 24th settles to 5ft S swell, but the wind is fresh offshore at 22 mph – clean but windy, still marginal. Saturday the 25th afternoon is the standout of the second week: 5ft SW swell, 20-second period, combined energy of 2733 (strong), and light cross-offshore wind. Excellent for experienced surfers. That’s the one.
Sunday the 26th afternoon is also good for experienced surfers: 5ft SW swell, 14 seconds, clean cross-off wind. Then Monday the 27th morning and Tuesday the 28th morning both glass off with 4ft to 4ft SW swell, moderate energy, clean and fun.
Best bets: Wednesday 15th morning and Thursday 16th morning for the first week, and Saturday 25th afternoon for the second. When it goes over 8ft, it’s time to watch from the beach unless you’re an expert.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Wed afternoon, min 13°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Sat afternoon, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 9 | S 10 | S 9 | S 9 | SW 18 | SW 17 | SW 16 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | S 13 | S 12 | S 12 | SW 12 | SW 12 | SW 11 | SW 10 | SSW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 78 | 46 | 42 | 40 | 78 | 499 | 1761 | 1604 | 933 | 746 | 414 | 439 | 368 | 463 | 638 | 546 | 430 | 403 | 350 | 261 | 272 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | off | off | cross-off | off | glassy | on | glassy | glassy | on | glassy | cross-on | cross-on | cross | glassy | glassy | off | glassy | on | cross-on | cross-on |
High Tide | 2:40PM1.48m | 2:54AM1.56m | 3:27PM1.57m | 3:42AM1.58m | 4:12PM1.63m | 4:28AM1.56m | 4:55PM1.64m | 5:11AM1.49m | 5:37PM1.61m | 5:53AM1.40m | 6:18PM1.54m | 6:36AM1.29m | 7:00PM1.43m | 7:21AM1.18m | |||||||
Low Tide | 8:48PM0.17m | 9:15AM0.03m | 9:38PM0.11m | 9:59AM0.00m | 10:25PM0.08m | 10:41AM0.02m | 11:11PM0.10m | 11:21AM0.07m | 11:55PM0.16m | 12:00PM0.16m | 00:39AM0.25m | 12:39PM0.27m | 1:24AM0.34m | 1:19PM0.39m | |||||||
 |  | | | |  | |  | | | |  | | | | | | | | | | |
 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:47 | — | — | 7:47 | — | — | 7:46 |
 | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | 5:57 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 15 | 15 | 17 | 15 | 15 | 18 | 16 | 16 | 18 | 15 | 16 | 18 | 15 | 17 | 20 | 18 | 17 | 17 | 15 | 15 |
Feels °C | 15 | 14 | 13 | 14 | 13 | 15 | 18 | 16 | 16 | 18 | 15 | 15 | 16 | 13 | 16 | 19 | 17 | 16 | 15 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | S 10 | S 9 | S 9 | SSE 8 | SW 17 | SW 16 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | S 13 | S 12 | S 12 | SW 12 | SW 12 | SW 11 | SW 10 | SSW 9 |
| kJ | 78 | 46 | 42 | 40 | 14 | 499 | 1761 | 1604 | 933 | 746 | 414 | 439 | 368 | 463 | 638 | 546 | 430 | 403 | 350 | 261 | 272 |
Swell 2 Height (m) Direction Period (s) | S 9 | SSW 9 | WSW 11 | WSW 10 | WSW 9 | SW 11 | — | — | — | — | — | — | S 14 | SW 10 | WSW 9 | WSW 9 | S 11 | SSE 10 | SSE 10 | SSE 9 | SSE 10 |
| kJ | 61 | 34 | 22 | 19 | 16 | 142 | — | — | — | — | — | — | 100 | 138 | 56 | 32 | 297 | 141 | 77 | 35 | 9 |
Swell 3 Height (m) Direction Period (s) | W 9 | WSW 12 | SSW 13 | SSW 12 | SW 18 | W 9 | — | — | — | — | — | — | — | S 16 | SSW 14 | SW 14 | — | — | — | SSW 13 | S 9 |
| kJ | 6 | 28 | 17 | 14 | 78 | 14 | — | — | — | — | — | — | — | 5 | 20 | 91 | — | — | — | 34 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | WNW 2 | — | — | — | — | — | — | — | — | SSE 3 | — | — | — | — | — | — | — | ESE 3 |
| kJ | — | — | — | 1 | — | — | — | — | — | — | — | — | 10 | — | — | — | — | — | — | — | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 0 | 10 | 0 | 16 | 22 | 12 | 0 | 0 | 0 | 0 | 22 | 16 | 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