
Surf Forecasts:
Nine Mile Reef surf forecast from 22 Jul 2026:
- Best quality surf: Thursday 23 Jul, 11PM (local time) - 10ft (3.0m), 17s period, SSW swell with cross-onshore winds.
- Most powerful swell: Thursday 23 Jul, 11PM (local time) - 10ft (3.0m), 17s period, SSW swell with 4,552 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 8AM (local time) - 4.5ft (1.4m), 12s period with SW 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 Wednesday (Jul 22) at 8AM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.1m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nine Mile Reef in the next 16 days are 3.0m 17s and forecast to arrive on Thursday (Jul 23) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Thursday (Jul 23) at 8AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 22nd Jul) | 4.5ft (1.4m) 12s |
| Best Surf | 11PM (Thu 23rd Jul) | 10ft (3.0m) 17s |
| Most Powerful | 11PM (Thu 23rd Jul) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Nine Mile Reef over the next 16 days.
The Lowdown
Alright, let’s get into it. The name of the game is Nine Mile Reef, a reef break that’s fairly consistent and exposed to the south-southeast. It’s a beginner-friendly spot, but there’s a wide range of conditions coming our way over the next couple of weeks.
Right now, we’ve got a bit of a slow start, but Wednesday morning on the 22nd of July, we’ll see some clean 5ft swell from the southwest, with a period of 12 seconds and a light cross-offshore breeze. The water’s sitting at 59°, which is pretty much normal for this time of year. The combined energy is moderate at 649, and it’s shaping up as a nice, clean session.
Thursday the 23rd picks up a little. The morning is a bit messy with a moderate offshore wind, but the afternoon is where it’s at. 5ft swell from the southwest, 12-second period, and a gentle offshore breeze. The energy jumps to 1084, and the surf is clean and fun. This is one of the better windows for intermediate surfers.
Now, Friday the 24th of July is a standout, but with a big caveat. The morning is glassy, with a 8ft swell from the south-southwest and a very long 15-second period. Combined energy is a massive 2200, which is strong. This is a groundswell, and it’s going to be powerful. But for a reef break, that size is pushing it for beginners—this is expert territory. The long period will make it bend and stand up nicely, but the power is real. The afternoon sees an onshore wind, so the morning is the only window.
Saturday the 25th is still chunky. Morning glass again with 6ft from the south-southwest, 13-second period, and energy at 1779. This is still a solid wave, but it’s cleaner than Friday. The afternoon turns onshore, so get in early.
Sunday the 26th is a good reset. Glassy morning, 4ft from the south-southwest, 11-second period, and energy down to 602. This is a much more manageable size, and it’s clean. Perfect for a relaxed session.
From Monday the 27th through to Thursday the 30th, it’s a bit of a write-off. The wind swings onshore from the southeast, and it’s choppy and messy. Swell sizes are still around 5ft to 8ft, but the wind is ruining it. The energy is high, but the quality is poor. This stretch is more for kitesurfers than paddle surfers.
We hit a lull from Friday the 31st of July through to Monday the 3rd of August. Waves drop to 1ft to 3ft, and while the mornings are glassy, it’s just small. Energy is below 300. It’s surfable if you’re desperate, but it’s very ordinary.
Then Tuesday the 4th of August brings a surprise. The morning shows a 6ft swell from the southeast, but with a short 8-second period. Wind is offshore and gentle, and the energy is 1029. This is a bit of a windswell, so it won’t have the same punch as a groundswell, but it’s clean and fun. The afternoon brings a longer period 4ft swell from the southwest, but it’s smaller.
Wednesday the 5th of August is windy with a fresh offshore breeze, but the swell is 5ft from the south-southwest, 13 seconds, and energy at 1001. It’s a bit rough around the edges, but still surfable.
Thursday the 6th of August is a nice finish. Glassy morning, 4ft from the south-southwest, 13-second period, and energy at 510. Clean and easy. The afternoon turns onshore, so morning is the call.
The true standout here is Friday the 24th of July, morning session. That’s a big, powerful groundswell with glassy conditions, but it’s only for experienced surfers. The second best is Thursday the 23rd of July afternoon, with clean, fun waves and a gentle offshore breeze.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Very mild (max 16°C on Fri afternoon, min 10°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sun morning, min 13°C on Sun night). Winds increasing (calm on Sun morning, fresh winds from the ESE by Mon night). | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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 12 | SSW 11 | SSW 12 | SW 11 | SW 12 | SSW 16 | SSW 15 | SSW 14 | WSW 14 | SSW 13 | SSW 12 | SSW 12 | SSW 11 | SW 14 | SW 13 | SW 14 | SSE 8 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph | |||||||||||||||||||||
578 | 426 | 472 | 506 | 614 | 4242 | 2178 | 1724 | 1222 | 958 | 800 | 605 | 426 | 811 | 585 | 857 | 985 | 1163 | 1689 | 1787 | 996 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | off | cross | glassy | on | cross-on | glassy | on | glassy | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:19AM1.01m | 9:42PM1.12m | 10:47AM0.98m | 11:05PM1.09m | 12:11PM1.02m | 00:20AM1.12m | 1:11PM1.10m | 1:15AM1.18m | 1:54PM1.19m | 1:57AM1.26m | 2:30PM1.28m | 2:33AM1.34m | 3:02PM1.37m | 3:06AM1.39m | |||||||
Low Tide | 3:11PM0.61m | 4:33AM0.56m | 4:45PM0.65m | 5:57AM0.54m | 6:15PM0.62m | 7:00AM0.48m | 7:16PM0.55m | 7:45AM0.40m | 8:00PM0.47m | 8:21AM0.31m | 8:36PM0.39m | 8:53AM0.24m | 9:09PM0.32m | ||||||||
7:45 | — | — | 7:43 | — | — | 7:43 | — | — | 7:43 | — | — | 7:43 | — | — | 7:41 | — | — | 7:41 | — | — | |
— | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 15 | 13 | 12 | 13 | 13 | 14 | 16 | 14 | 16 | 19 | 19 | 20 | 18 | 15 | 16 | 18 | 16 | 16 | 19 | 17 |
Feels °C | 11 | 12 | 11 | 6 | 10 | 13 | 13 | 14 | 12 | 15 | 17 | 18 | 18 | 15 | 13 | 13 | 15 | 12 | 13 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SSW 11 | SSW 12 | SW 11 | SW 12 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 11 | SW 14 | SW 13 | SW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
578 | 426 | 472 | 506 | 614 | 4242 | 2178 | 1724 | 1127 | 958 | 800 | 605 | 426 | 811 | 585 | 857 | 523 | 1040 | 1689 | 1787 | 996 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SE 14 | SE 13 | SSW 20 | SE 12 | SE 12 | SE 12 | WSW 14 | WSW 13 | SSW 16 | SE 11 | SSW 15 | S 20 | SSW 16 | WSW 12 | SSW 18 | WSW 12 | — | — | — |
66 | 154 | 8 | 7 | 432 | 37 | 22 | 21 | 1222 | 809 | 25 | 4 | 176 | 7 | 149 | 359 | 106 | 14 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 14 | ESE 11 | S 23 | SE 12 | — | — | — | ESE 11 | ESE 11 | SE 11 | — | — | SW 20 | S 10 | — | WSW 12 | — | — | — | — |
5 | 8 | 23 | 10 | 38 | — | — | — | 12 | 12 | 5 | — | — | 15 | 8 | — | 29 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | WNW 3 | N 4 | NNW 4 | — | — | — | — | — | — | SE 4 | SE 4 | — | S 4 | SSE 4 | SE 4 | SSE 8 | SSE 8 | SE 8 | SE 7 | SE 7 |
— | 3 | 12 | 25 | — | — | — | — | — | — | 20 | 21 | — | 9 | 34 | 52 | 985 | 1163 | 533 | 355 | 239 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 43 | 0 | 16 | 12 | 21 | 16 | 0 | 12 | 0 | 0 | 16 | 21 | 21 | 165 | 27 | 21 | 21 | 21 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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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.










