Surf Forecasts:
How big are the waves at Arniston today (18 Oct):
- Morning surf: Morning surf (18 Oct, local time) - 4.5ft (1.4m), 12s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Oct, local time) - 5ft (1.5m), 13s period with SSW swell.
- Evening surf: Evening surf (18 Oct, local time) - 5.5ft (1.7m), 13s period with SSW swell.
The current surf forecast for Arniston at 7AM is: 1.4m 12s primary swell from a South-southwest direction and 0.9m 13s secondary swell from a Southwest direction (forecast issued at 01:00am October 18). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Oct) | 4.5ft (1.4m) | 12s |
| Afternoon (18 Oct) | 5ft (1.5m) | 13s |
| Evening (18 Oct) | 5.5ft (1.7m) | 13s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Sun afternoon. Very mild (max 17°C on Tue afternoon, min 12°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 18 | Monday 19 | Tuesday 20 | ||||||||||||||||||||||
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) | SSW 11 | SSW 13 | SSW 12 | SSW 12 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 11 | SW 11 | SW 11 | WSW 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 546 | 572 | 531 | 619 | 703 | 894 | 894 | 763 | 715 | 626 | 545 | 536 | 527 | 483 | 414 | 213 | 215 | 256 | 256 | 256 | 278 | 515 | 423 | 2959 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | glassy | glassy | cross | cross | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | off | off |
High Tide | 7:44AM1.16m | 8:13PM1.12m | 10:18AM1.18m | 10:46PM1.15m | 11:35AM1.32m | |||||||||||||||||||
Low Tide | 00:58AM0.74m | 1:50PM0.89m | 3:04AM0.81m | 4:50PM0.86m | 5:04AM0.73m | 5:58PM0.71m | ||||||||||||||||||
 |  |  |  | | | | |  | |  | | | |  | | | |  | | | | | | |
 | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:57 | — | — |
mm | — | 1 | — | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 14 | 13 | 13 | 13 | 15 | 15 | 15 | 15 | 14 | 13 | 12 | 13 | 16 | 17 | 16 | 17 | 17 |
Feels °C | 9 | 9 | 10 | 11 | 12 | 11 | 10 | 10 | 8 | 8 | 9 | 10 | 9 | 10 | 12 | 11 | 10 | 9 | 10 | 13 | 12 | 12 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 13 | SSW 12 | SSW 12 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 11 | ESE 9 | SW 11 | SW 12 |
| kJ | 546 | 572 | 531 | 619 | 703 | 894 | 894 | 763 | 715 | 626 | 545 | 536 | 527 | 483 | 414 | 213 | 215 | 256 | 256 | 256 | 278 | 16 | 423 | 711 |
Swell 2 Height (m) Direction Period (s) | S 13 | SW 11 | SW 13 | SW 13 | SW 12 | E 8 | E 8 | E 9 | E 9 | E 9 | E 8 | E 8 | E 7 | E 8 | E 8 | S 8 | S 9 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | — | ESE 9 | ESE 8 |
| kJ | 115 | 133 | 299 | 230 | 181 | 6 | 6 | 6 | 6 | 6 | 10 | 28 | 39 | 66 | 64 | 64 | 40 | 18 | 17 | 19 | 11 | — | 15 | 14 |
Swell 3 Height (m) Direction Period (s) | SW 15 | SW 14 | E 8 | E 8 | E 8 | — | — | — | — | — | — | — | — | — | — | E 8 | E 8 | — | — | — | — | — | — | — |
| kJ | 116 | 203 | 6 | 6 | 5 | — | — | — | — | — | — | — | — | — | — | 45 | 29 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | WSW 4 | — | — | — | — | — | — | — | — | — | — | — | SW 11 | W 4 | WSW 10 |
| kJ | — | — | — | — | — | — | — | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | 515 | 36 | 2959 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 81 | 81 | 81 | 0 | 0 | 183 | 135 | 0 | 103 | 0 | 0 | 103 | 133 | 103 | 0 | 0 | 0 | 0 | 0 | 0 | 174 | 0 | 0 | 105 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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