Surf Forecasts:
How big are the waves at Arniston today (20 Oct):
- Morning surf: Morning surf (20 Oct, local time) - 3.5ft (1.0m), 11s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Oct, local time) - 4ft (1.2m), 11s period with SSW swell.
- Evening surf: Evening surf (20 Oct, local time) - 5ft (1.6m), 12s period with SW swell.
The current surf forecast for Arniston at 5PM is: 1.2m 11s primary swell from a South-southwest direction and 0.3m 7s secondary swell from a East direction (forecast issued at 01:00pm October 20). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | 3.5ft (1.0m) | 11s |
| Afternoon (20 Oct) | 4ft (1.2m) | 11s |
| Evening (20 Oct) | 5ft (1.6m) | 12s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 18°C on Wed morning, min 14°C on Tue night). Winds decreasing (strong winds from the WSW on Tue afternoon, calm by Thu night). | |||||||||||||||||||||
Tue 20 | Wednesday 21 | Thursday 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) | SSW 11 | SSW 11 | SSW 11 | SW 12 | WSW 12 | SSW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SSW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 251 | 311 | 329 | 683 | 3020 | 795 | 878 | 1043 | 925 | 700 | 1031 | 939 | 792 | 518 | 633 | 633 | 699 | 687 | 685 | 1092 | 613 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-off | off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:35AM1.32m | 11:52PM1.29m | 12:16PM1.48m | 00:34AM1.44m | 12:49PM1.65m | ||||||||||||||||
Low Tide | 5:58PM0.71m | 5:58AM0.60m | 6:36PM0.53m | 6:35AM0.47m | 7:07PM0.36m | ||||||||||||||||
 |  | |  | | | | |  |  | |  | |  | |  | | | | | | |
 | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — |
 | — | — | 6:57 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:58 | — | — |
mm | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 17 | 15 | 14 | 16 | 18 | 17 | 17 | 17 | 15 | 15 | 15 | 15 | 16 | 16 | 17 | 16 | 15 | 15 |
Feels °C | 15 | 12 | 8 | 12 | 10 | 8 | 10 | 11 | 11 | 10 | 11 | 9 | 9 | 10 | 9 | 9 | 8 | 9 | 9 | 10 | 12 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 11 | SSW 11 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | SW 12 | SW 12 | ESE 10 | ESE 9 | ESE 9 | SSW 12 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SSW 11 | SSW 11 |
| kJ | 251 | 311 | 329 | 683 | 760 | 795 | 878 | 1043 | 925 | 700 | 19 | 17 | 17 | 518 | 17 | 17 | 8 | 8 | 9 | 583 | 613 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 9 | E 8 | E 8 | ESE 8 | E 8 | ESE 11 | ESE 10 | E 10 | E 9 | E 9 | ESE 9 | E 8 | E 9 | E 9 | E 9 | E 9 | ESE 10 | ESE 10 |
| kJ | 10 | 10 | 10 | 13 | 12 | 12 | 13 | 12 | 22 | 20 | 2 | 2 | 2 | 17 | 1 | 2 | 2 | 2 | 2 | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SE 11 | — | — | — | — | — | — | — | — | — | — | — | E 9 | ESE 10 |
| kJ | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | 1 | 10 |
Wind waves Height (m) Direction Period (s) | — | — | WSW 4 | W 4 | WSW 12 | NW 3 | NW 3 | WNW 3 | WSW 4 | WSW 4 | SW 12 | SW 12 | SW 12 | W 4 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | — |
| kJ | — | — | 14 | 22 | 3020 | 3 | 5 | 12 | 27 | 37 | 1031 | 939 | 792 | 13 | 633 | 633 | 699 | 687 | 685 | 1092 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 174 | 174 | 0 | 105 | 105 | 113 | 115 | 160 | 174 | 167 | 160 | 133 | 113 | 113 | 160 | 168 | 168 | 168 | 103 | 0 |
Best forecast wave conditions in Overberg | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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