Surf Forecasts:
How big are the waves at Arniston today (11 Sep):
- Morning surf: Morning surf (11 Sep, local time) - 5ft (1.5m), 7s period with SSE swell.
- Afternoon surf: Afternoon surf (11 Sep, local time) - 6ft (1.8m), 7s period with SSE swell.
- Evening surf: Evening surf (11 Sep, local time) - 5.5ft (1.7m), 7s period with SSE swell.
The current surf forecast for Arniston at 2AM is: 0.9m 13s primary swell from a Southwest direction and 0.4m 10s secondary swell from a East-southeast direction, 0.6m 5s secondary swell from a South direction (forecast issued at 07:00pm September 10). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Sep) | 5ft (1.5m) | 7s |
| Afternoon (11 Sep) | 6ft (1.8m) | 7s |
| Evening (11 Sep) | 5.5ft (1.7m) | 7s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Sat afternoon. Very mild (max 16°C on Thu night, min 15°C on Thu night). Winds increasing (light winds from the SW on Thu night, strong winds from the ESE by Sat night). | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | |||||||||||||||||
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 13 | SW 13 | SW 13 | SW 13 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SE 7 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 581 | 458 | 330 | 273 | 239 | 186 | 200 | 277 | 306 | 262 | 205 | 145 | 143 | 372 | 600 | 1032 | 1388 | 1393 | 1341 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | on | on | on | on | on | on | on |
High Tide | 2:52PM2.03m | 3:08AM1.91m | 3:25PM2.08m | 3:41AM1.91m | 3:56PM2.06m | ||||||||||||||
Low Tide | 9:09PM0.03m | 9:16AM0.01m | 9:42PM-0.00m | 9:46AM0.03m | 10:12PM0.03m | ||||||||||||||
 |  | | | | | | |  | |  | | | | |  | | |  | |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — |
 | 6:25 | — | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:27 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 5 | — | 1 |
Temp °C | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 |
Feels °C | 14 | 16 | 15 | 12 | 11 | 10 | 11 | 11 | 11 | 13 | 15 | 15 | 14 | 13 | 11 | 9 | 8 | 8 | 7 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSE 7 | SSE 7 | SE 7 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 |
| kJ | 581 | 458 | 330 | 273 | 239 | 153 | 124 | 172 | 118 | 116 | 205 | 145 | 143 | 372 | 600 | 1032 | 1388 | 1393 | 1341 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | E 9 | E 10 | ESE 10 | SSW 12 | SSW 12 | SSW 12 | E 10 | SSW 11 | SSW 11 | SW 12 | SSW 10 | SSW 10 | S 10 | S 10 | SE 14 | — | SE 13 | SE 13 |
| kJ | 64 | 42 | 48 | 33 | 49 | 83 | 81 | 16 | 70 | 66 | 110 | 83 | 118 | 68 | 48 | 8 | — | 7 | 7 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | SE 9 | SSW 13 | SSW 13 | E 10 | E 10 | E 10 | — | E 9 | E 9 | S 10 | SW 12 | SSW 15 | — | — | — | — | — | — |
| kJ | 9 | 3 | 101 | 60 | 31 | 30 | 30 | — | 14 | 14 | 51 | 69 | 142 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | S 5 | S 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | — | — | — | SE 7 | SE 7 | SE 7 | SE 7 | SE 8 | SE 7 |
| kJ | — | — | — | 16 | 141 | 186 | 200 | 277 | 306 | 262 | — | — | — | 183 | 279 | 535 | 696 | 637 | 640 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 113 | 0 | 0 | 105 | 105 | 105 | 105 | 246 | 246 | 192 | 107 | 81 | 81 | 81 | 81 | 139 | 183 | 184 | 144 |
Best forecast wave conditions in Overberg | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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