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Surf Forecasts:
Nine Mile Reef surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 am Monday 11 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
17.2° C
(Which is normal for this time of year)How big are the waves at Nine Mile Reef today?
The current surf forecast for Nine Mile Reef at 6AM is: 2.3m 12s primary swell from a Southwest direction and 0.1m 11s secondary swell from a Southeast direction (forecast issued at 01:00am May 11). An open ocean swell of 1.8m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 7ft (2.2m) | 11s |
| Afternoon (11 May) | 15ft (4.5m) | 13s |
| Evening (11 May) | 10ft (3.0m) | 13s |
Table - waves today at Nine Mile Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 62mm), heaviest during Mon morning. Very mild (max 18°C on Mon afternoon, min 13°C on Wed night). Winds decreasing (gales from the NNW on Mon morning, calm by Wed night). | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SW 12 | SW 12 | SW 11 | SSE 9 | WSW 13 | WSW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SSW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | |
2496 | 1610 | 1204 | 29 | 6417 | 6009 | 3514 | 3160 | 2975 | 3264 | 3105 | 2822 | 2304 | 1920 | 1688 | 1682 | 1472 | 1553 | 1969 | 1971 | 2244 | 2142 | 1805 | 1568 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross | cross-on | glassy | |
High Tide | 10:55AM1.08m | 11:22PM1.28m | 11:55AM1.19m | 00:11AM1.40m | 12:45PM1.30m | |||||||||||||||||||
Low Tide | 4:54AM0.53m | 4:58PM0.49m | 5:52AM0.40m | 5:54PM0.40m | 6:39AM0.25m | 6:43PM0.31m | ||||||||||||||||||
 | |  | |  | | | | |  | | |  |  | |  | |  |  |  | | | |  | |
 | — | 7:26 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:53 | — | — | — | — | — | — | — | 5:53 | — | — |
1 | 2 | 12 | 13 | 5 | 3 | 2 | 2 | 1 | 9 | 1 | 2 | 7 | 2 | 1 | 1 | 1 | — | — | — | — | — | — | — | |
Temp °C | 13 | 12 | 14 | 17 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 15 | 16 | 15 | 15 | 16 | 16 | 16 | 16 | 15 | 14 |
7 | 1 | 2 | 7 | 8 | 10 | 10 | 12 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 12 | 13 | 13 | 12 | 12 | 13 | 13 | 13 | |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 11 | SSE 9 | SSE 9 | SSE 9 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SSW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 |
 kJ | 2496 | 1610 | 1204 | 29 | 29 | 17 | 3514 | 3160 | 2975 | 3264 | 3105 | 2822 | 2304 | 1920 | 1688 | 1682 | 1472 | 1553 | 1969 | 1971 | 2244 | 2142 | 1805 | 1568 |
Swell 2 Height (m) Direction Period (s) | SSE 11 | SE 11 | SSE 13 | SSE 13 | SE 13 | SE 10 | SE 10 | — | SSE 12 | — | — | — | — | — | — | — | SSE 11 | — | SE 11 | W 11 | W 11 | WSW 11 | WSW 11 | WSW 11 |
| kJ | 11 | 4 | 17 | 17 | 41 | 4 | 16 | — | 15 | — | — | — | — | — | — | — | 12 | — | 5 | 1482 | 1389 | 1274 | 1167 | 966 |
Swell 3 Height (m) Direction Period (s) | SE 14 | SE 14 | SE 13 | — | SE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 11 | — | — | — | — |
| kJ | 8 | 7 | 28 | — | 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 11 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NW 5 | NW 7 | W 12 | WSW 13 | WSW 14 | WNW 6 | WNW 6 | W 5 | W 13 | W 12 | W 12 | W 12 | W 4 | W 4 | W 12 | WNW 4 | W 4 | W 11 | — | — | — | — | — |
| kJ | — | 168 | 885 | 5162 | 6417 | 6009 | 255 | 122 | 88 | 5043 | 3429 | 2943 | 2544 | 20 | 22 | 2386 | 24 | 23 | 1763 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 976 | 340 | 340 | 868 | 865 | 998 | 1024 | 398 | 18 | 1030 | 18 | 18 | 20 | 10 | 18 | 10 | 10 | 165 | 165 | 165 | 31 | 18 | 18 | 12 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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