Surf Forecasts:
How big are the waves at Nine Mile Reef today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 4.5ft (1.4m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 4.5ft (1.3m), 13s period with WSW swell.
- Evening surf: Evening surf (17 Aug, local time) - 4.5ft (1.3m), 14s period with SW swell.
The current surf forecast for Nine Mile Reef at 6AM is: 1.5m 13s primary swell from a Southwest direction (forecast issued at 01:00am August 17). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 4.5ft (1.4m) | 13s |
| Afternoon (17 Aug) | 4.5ft (1.3m) | 13s |
| Evening (17 Aug) | 4.5ft (1.3m) | 14s |
Table - waves today at Nine Mile Reef. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Mon afternoon, min 12°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 13 | SSW 13 | SSW 13 | SSW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1049 | 804 | 721 | 642 | 642 | 599 | 661 | 586 | 569 | 609 | 643 | 1025 | 878 | 1162 | 1108 | 1091 | 996 | 964 | 864 | 795 | 718 | 718 | 646 | 617 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross | glassy | glassy | on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | glassy | on | cross-on | on | on | glassy | glassy |
High Tide | 5:55AM1.34m | 6:12PM1.44m | 6:30AM1.23m | 6:46PM1.31m | 7:09AM1.11m | 7:27PM1.17m | ||||||||||||||||||
Low Tide | 11:56PM0.20m | 11:56AM0.25m | 00:30AM0.31m | 12:28PM0.38m | 1:07AM0.43m | 1:04PM0.51m | ||||||||||||||||||
 | |  | | | |  |  | | |  | | | | | | | | | | | | | | |
 | — | 7:22 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 15 | 16 | 18 | 16 | 15 | 15 | 14 | 14 | 14 | 15 | 16 | 15 | 14 | 13 | 13 | 12 | 12 | 14 | 15 | 15 | 14 | 14 |
Feels °C | 11 | 11 | 12 | 13 | 16 | 15 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 11 | 11 | 12 | 12 | 11 | 11 | 12 | 13 | 12 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 13 | SSW 13 | SSW 13 | SSW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
| kJ | 1049 | 804 | 721 | 642 | 642 | 599 | 661 | 586 | 569 | 609 | 643 | 666 | 878 | 1162 | 1108 | 1091 | 996 | 964 | 864 | 795 | 718 | 718 | 646 | 617 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SW 16 | — | — | — | SW 14 | WSW 13 | SW 12 | W 13 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 67 | — | — | — | 313 | 476 | 1025 | 334 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 42 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NNW 2 | NNW 3 | NNW 3 | NW 3 | — | — | — | — | — | — | — | — | — | — | ESE 4 | ESE 4 | SE 3 | — | — | — | — | — | — |
| kJ | — | 1 | 2 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | 8 | 8 | 6 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 18 | 10 | 0 | 0 | 16 | 16 | 16 | 16 | 29 | 32 | 16 | 16 | 16 | 0 | 12 | 10 | 10 | 10 | 0 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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