Surf Forecasts:
How big are the waves at Nine Mile Reef today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 4.5ft (1.3m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 3.5ft (1.1m), 13s period with SW swell.
- Evening surf: Evening surf (20 Sep, local time) - 3.5ft (1.0m), 13s period with SW swell.
The current surf forecast for Nine Mile Reef at 8PM is: 1.0m 13s primary swell from a Southwest direction and 1.0m 6s secondary swell from a Southeast direction (forecast issued at 01:00pm September 20). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 4.5ft (1.3m) | 13s |
| Afternoon (20 Sep) | 3.5ft (1.1m) | 13s |
| Evening (20 Sep) | 3.5ft (1.0m) | 13s |
Table - waves today at Nine Mile Reef. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 28°C on Tue morning, min 15°C on Wed morning). Wind will be generally light. | |||||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||
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 |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | ESE 6 | ESE 6 | SSW 14 | SW 13 | SW 13 | SSW 12 | SSW 12 | SW 12 | SSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 495 | 431 | 369 | 305 | 295 | 210 | 207 | 203 | 200 | 137 | 130 | 123 | 118 | 115 | 104 | 249 | 245 | 255 | 247 | 202 | 211 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross | cross | glassy | cross-off | cross-off | cross-off | cross-on | cross-off | cross-on | cross-on |
High Tide | 11:23AM0.96m | 11:40PM1.00m | 12:28PM1.08m | 00:35AM1.11m | 1:03PM1.22m | ||||||||||||||||
Low Tide | 5:47PM0.69m | 6:13AM0.57m | 6:43PM0.57m | 6:53AM0.45m | 7:17PM0.44m | ||||||||||||||||
 | | |  | | | | | | | | | | |  | |  | | |  | | |
 | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — |
 | — | — | 6:38 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 23 | 24 | 23 | 21 | 19 | 18 | 17 | 17 | 23 | 27 | 27 | 24 | 23 | 22 | 22 | 24 | 28 | 25 | 23 | 20 | 17 |
Feels °C | 22 | 22 | 22 | 21 | 18 | 18 | 16 | 16 | 22 | 26 | 27 | 24 | 23 | 23 | 22 | 24 | 28 | 25 | 23 | 20 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SE 6 | SW 11 | SW 11 | SW 13 | SW 13 | SSW 12 | SSW 12 | SW 12 | SSW 12 |
| kJ | 495 | 431 | 369 | 305 | 295 | 210 | 207 | 203 | 200 | 137 | 130 | 123 | 32 | 96 | 96 | 249 | 245 | 255 | 247 | 202 | 211 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SW 11 | SSW 14 | SSW 14 | SE 6 | ESE 6 | WSW 11 | S 16 | SE 8 | S 14 |
| kJ | — | — | — | — | — | — | — | — | 45 | 22 | 44 | 84 | 97 | 115 | 104 | 11 | 3 | 88 | 5 | 2 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SSW 14 | SE 6 | SE 6 | WSW 11 | SE 7 | SE 7 | S 16 | S 15 | S 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 118 | 15 | 15 | 121 | 46 | 38 | 5 | 4 | 14 |
Wind waves Height (m) Direction Period (s) | SSE 5 | SSE 5 | SSE 5 | SE 6 | SE 5 | SE 5 | SE 5 | SE 5 | SE 5 | SE 5 | SE 6 | SE 6 | ESE 6 | ESE 6 | — | NE 3 | — | — | — | — | — |
| kJ | 17 | 31 | 56 | 59 | 49 | 40 | 40 | 35 | 35 | 57 | 64 | 69 | 115 | 90 | — | 2 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 22 | 16 | 16 | 16 | 16 | 16 | 12 | 16 | 16 | 16 | 12 | 12 | 0 | 0 | 0 | 0 | 10 | 0 | 10 | 10 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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