Surf Forecasts:
Nine Mile Reef surf forecast from 23 Aug 2026:
- Best quality surf: Thursday 27 Aug, 2AM (local time) - 5ft (1.5m), 12s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 5AM (local time) - 5ft (1.6m), 14s period, SW swell with 1,079 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 2AM (local time) - 5ft (1.5m), 12s 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 Thursday (Aug 27) at 2AM. The primary swell is predicted to be 1.5m and 12s period with a secondary swell of 0.6m and 15s. Another secondary swell of 2.0m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nine Mile Reef in the next 16 days are 1.6m 14s and forecast to arrive on Tuesday (Aug 25) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Saturday (Aug 29) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 27th Aug) | 5ft (1.5m) 12s |
| Best Surf | 2AM (Thu 27th Aug) | 5ft (1.5m) 12s |
| Most Powerful | 5AM (Tue 25th Aug) | 5ft (1.6m) 14s |
Table - best surf conditions forecast for Nine Mile Reef over the next 16 days.
Short Range ForecastMostly dry. Warm (max 20°C on Tue afternoon, min 12°C on Sun morning). Winds increasing (light winds from the SE on Sun morning, fresh winds from the SE by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Wed afternoon, min 12°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 14 | SW 14 | SW 14 | SW 13 | SE 8 | SSW 16 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | SW 14 | SW 14 | SW 13 |
Wave Graph | |||||||||||||||||||||
581 | 496 | 448 | 325 | 297 | 1016 | 978 | 596 | 444 | 236 | 416 | 596 | 502 | 426 | 403 | 282 | 178 | 188 | 149 | 189 | 175 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-off | off | cross-off | glassy | on | on | cross-off | off | off | cross-off |
High Tide | 1:00PM1.07m | 1:03AM1.14m | 1:38PM1.20m | 1:41AM1.25m | 2:09PM1.32m | 2:14AM1.35m | 2:37PM1.43m | 2:44AM1.43m | 3:05PM1.53m | 3:14AM1.49m | 3:33PM1.60m | 3:44AM1.52m | 4:01PM1.65m | 4:15AM1.52m | |||||||
Low Tide | 7:08PM0.57m | 7:28AM0.42m | 7:46PM0.46m | 8:00AM0.31m | 8:17PM0.35m | 8:28AM0.22m | 8:47PM0.25m | 8:55AM0.14m | 9:15PM0.17m | 9:22AM0.09m | 9:44PM0.11m | 9:49AM0.06m | 10:14PM0.08m | ||||||||
7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:07 | — | — | |
— | 6:20 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:23 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 |
Temp °C | 14 | 15 | 13 | 14 | 15 | 13 | 17 | 20 | 14 | 18 | 24 | 20 | 22 | 23 | 19 | 20 | 22 | 24 | 23 | 21 | 16 |
Feels °C | 12 | 12 | 11 | 11 | 11 | 10 | 13 | 15 | 10 | 16 | 22 | 18 | 20 | 20 | 18 | 18 | 19 | 21 | 18 | 14 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 12 | SSW 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | SSE 11 | SW 14 | SW 13 |
581 | 496 | 448 | 325 | 297 | 1016 | 978 | 596 | 444 | 233 | 385 | 596 | 502 | 426 | 403 | 282 | 178 | 188 | 121 | 189 | 175 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | SSW 14 | SSW 14 | W 11 | SSW 16 | SSW 15 | SSW 16 | S 16 | S 16 | S 15 | S 15 | S 15 | SW 15 | SW 16 | WSW 14 | SW 14 | SW 14 | S 11 | SSE 10 |
— | — | — | 125 | 178 | 157 | 146 | 125 | 51 | 183 | 248 | 159 | 39 | 39 | 35 | 66 | 133 | 167 | 149 | 83 | 35 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SW 15 | — | — | — | SSW 16 | SW 13 | SSW 16 | SSW 15 | WSW 12 | SW 16 | ESE 9 | WSW 11 | S 13 | — | ESE 6 | SE 7 | ESE 7 |
— | — | — | — | 262 | — | — | — | 100 | 134 | 416 | 172 | 158 | 11 | 42 | 11 | 92 | — | 24 | 12 | 5 | |
Wind waves Height (m) Direction Period (s) | — | SSE 2 | — | SE 3 | SSE 4 | SE 4 | SE 4 | SSE 5 | SSE 7 | SE 8 | SE 8 | ESE 8 | — | WNW 3 | WNW 3 | — | SE 2 | SE 4 | NNW 3 | NW 5 | NW 3 |
— | 1 | — | 5 | 15 | 23 | 43 | 114 | 323 | 236 | 261 | 527 | — | 6 | 4 | — | 2 | 9 | 5 | 85 | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 26 | 16 | 16 | 33 | 16 | 21 | 380 | 27 | 12 | 16 | 0 | 0 | 0 | 0 | 16 | 16 | 0 | 60 | 160 | 320 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











