Surf Forecasts:
How big are the waves at Nine Mile Reef today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 2.5ft (0.8m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 2.5ft (0.7m), 12s period with SW swell.
- Evening surf: Evening surf (21 Sep, local time) - 2.5ft (0.7m), 11s period with SW swell.
The current surf forecast for Nine Mile Reef at 1PM is: 0.8m 12s primary swell from a Southwest direction and 0.2m 15s secondary swell from a South-southwest direction, 0.9m 5s secondary swell from a Southeast direction (forecast issued at 07:00am September 21). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 2.5ft (0.8m) | 12s |
| Afternoon (21 Sep) | 2.5ft (0.7m) | 12s |
| Evening (21 Sep) | 2.5ft (0.7m) | 11s |
Table - waves today at Nine Mile Reef. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Warm (max 29°C on Tue morning, min 16°C on Mon morning). Wind will be generally light. | |||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SSW 14 | ESE 6 | ESE 6 | SW 13 | SW 13 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SSW 10 | SW 10 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 207 | 203 | 200 | 167 | 130 | 123 | 118 | 115 | 104 | 249 | 245 | 216 | 180 | 218 | 211 | 151 | 119 | 117 | 115 | 90 | 87 | 71 | 64 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | cross | cross | cross | cross-off | cross-off | off | cross-on | cross-off | glassy | cross-on | off | off | cross-off | glassy | on | on | on | cross-on |
High Tide | 12:28PM1.08m | 00:35AM1.11m | 1:03PM1.22m | 1:12AM1.23m | 1:33PM1.36m | ||||||||||||||||||
Low Tide | 6:13AM0.57m | 6:43PM0.57m | 6:53AM0.45m | 7:17PM0.44m | 7:24AM0.33m | 7:47PM0.31m | |||||||||||||||||
 |  | | | | | | |  | | |  | | |  |  | | |  | | | | | |
 | 6:37 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — |
 | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:42 | — | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 | 1 | — | — | — | — | 1 | — |
Temp °C | 16 | 16 | 22 | 27 | 26 | 24 | 23 | 22 | 21 | 24 | 29 | 24 | 25 | 21 | 19 | 17 | 16 | 16 | 18 | 17 | 17 | 16 | 17 |
Feels °C | 15 | 15 | 21 | 26 | 25 | 24 | 23 | 23 | 21 | 24 | 28 | 24 | 25 | 22 | 19 | 17 | 15 | 16 | 19 | 17 | 16 | 15 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SSW 10 | SW 10 |
| kJ | 207 | 203 | 200 | 167 | 130 | 123 | 97 | 96 | 96 | 249 | 245 | 216 | 180 | 218 | 211 | 151 | 119 | 117 | 115 | 90 | 87 | 71 | 64 |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SE 6 | SSW 14 | SE 6 | SE 5 | SSE 5 | S 16 | S 15 | S 14 | S 13 | SSE 7 | SSE 6 | SSE 6 | S 12 | SSE 6 | S 11 | SSW 7 |
| kJ | — | — | 45 | 22 | 44 | 84 | 118 | 20 | 104 | 11 | 7 | 4 | 5 | 4 | 4 | 14 | 4 | 4 | 4 | 11 | 4 | 9 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 14 | SE 6 | WSW 11 | WSW 11 | WSW 11 | S 15 | S 15 | WSW 10 | ESE 8 | S 13 | S 12 | S 12 | SSE 12 | S 12 | SE 7 | S 10 |
| kJ | — | — | — | — | — | — | — | 115 | 15 | 121 | 117 | 88 | 5 | 4 | 20 | 12 | 13 | 12 | 11 | 14 | 11 | 2 | 8 |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 | ESE 6 | ESE 6 | ESE 6 | — | — | — | — | — | — | — | — | — | S 6 | — | — | SE 2 |
| kJ | 38 | 40 | 42 | 39 | 59 | 62 | 31 | 115 | 96 | 40 | — | — | — | — | — | — | — | — | — | 7 | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 16 | 16 | 16 | 16 | 16 | 12 | 12 | 12 | 0 | 0 | 0 | 10 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 19 | 16 | 16 | 16 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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