Surf Forecasts:
How big are the waves at Nine Mile Reef today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 5ft (1.5m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 6ft (1.8m), 13s period with SW swell.
- Evening surf: Evening surf (18 Aug, local time) - 6.5ft (2.0m), 13s period with SSW swell.
The current surf forecast for Nine Mile Reef at 7PM is: 2.0m 13s primary swell from a South-southwest direction and 0.4m 3s secondary swell from a South-southeast direction (forecast issued at 01:00pm August 18). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 5ft (1.5m) | 13s |
| Afternoon (18 Aug) | 6ft (1.8m) | 13s |
| Evening (18 Aug) | 6.5ft (2.0m) | 13s |
Table - waves today at Nine Mile Reef. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 15°C on Tue afternoon, min 11°C on Fri morning). Wind will be generally light. | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||
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 13 | SW 13 | SSW 13 | SSW 12 | SSW 12 | SW 12 | SW 12 | SSW 12 | SSW 12 | SW 12 | SW 12 | SW 12 | SSW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1025 | 878 | 1147 | 1250 | 1192 | 1073 | 964 | 948 | 808 | 795 | 718 | 730 | 742 | 1100 | 2129 | 2244 | 1859 | 1452 | 1230 | 1000 | 919 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-on | on | on | on | on | on | glassy | glassy | cross-on | on | cross-on | on | on | on | cross-on | cross-on |
High Tide | 6:46PM1.31m | 7:09AM1.11m | 7:27PM1.17m | 8:02AM1.00m | 8:28PM1.05m | ||||||||||||||||
Low Tide | 12:28PM0.38m | 1:07AM0.43m | 1:04PM0.51m | 1:53AM0.55m | 1:53PM0.63m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | |  | | | | |
 | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — | — |
 | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:17 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 14 | 13 | 12 | 12 | 12 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 15 | 15 | 14 | 13 | 13 |
Feels °C | 13 | 11 | 10 | 11 | 11 | 11 | 11 | 10 | 11 | 12 | 11 | 13 | 13 | 13 | 13 | 12 | 13 | 12 | 11 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 13 | SW 13 | SSW 13 | SSW 12 | SSW 12 | SW 12 | SW 12 | SSW 12 | SSW 12 | SW 12 | SW 12 | SW 12 | SSW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 |
| kJ | 666 | 878 | 1147 | 1250 | 1192 | 1073 | 964 | 948 | 808 | 795 | 718 | 730 | 742 | 1100 | 2129 | 2244 | 1859 | 1452 | 1230 | 1000 | 919 |
Swell 2 Height (m) Direction Period (s) | SW 12 | WSW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1025 | 447 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SSE 3 | — | E 3 | ESE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 3 |
| kJ | — | — | 3 | — | 5 | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 27 | 33 | 21 | 16 | 16 | 12 | 21 | 22 | 10 | 27 | 0 | 0 | 10 | 16 | 16 | 21 | 21 | 32 | 29 | 16 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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