Surf Forecasts:
How big are the waves at Arniston today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 4.5ft (1.4m), 12s period with SSW swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 6ft (1.9m), 12s period with S swell.
- Evening surf: Evening surf (17 Sep, local time) - 4.5ft (1.3m), 12s period with SSW swell.
The current surf forecast for Arniston at 3PM is: 1.9m 12s primary swell from a South direction and 0.5m 10s secondary swell from a East direction, 0.5m 10s secondary swell from a East direction (forecast issued at 07:00am September 17). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 4.5ft (1.4m) | 12s |
| Afternoon (17 Sep) | 6ft (1.9m) | 12s |
| Evening (17 Sep) | 4.5ft (1.3m) | 12s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 15°C on Thu morning, min 14°C on Thu night). Winds decreasing (strong winds from the E on Fri afternoon, light winds from the E by Sat night). | |||||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||||||||
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 12 | SSW 12 | SSW 12 | S 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 14 | SSW 13 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | SSW 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 591 | 517 | 644 | 1027 | 530 | 461 | 469 | 399 | 379 | 366 | 265 | 474 | 427 | 357 | 346 | 428 | 478 | 504 | 501 | 418 | 333 | 522 | 742 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | cross-on | on | cross-on | cross-on | on | on | on | on | on | on |
High Tide | 6:19PM1.38m | 6:46AM1.21m | 7:01PM1.21m | 8:23AM1.08m | 9:36PM1.10m | ||||||||||||||||||
Low Tide | 12:01PM0.62m | 00:33AM0.67m | 12:36PM0.78m | 1:34AM0.81m | 2:13PM0.93m | ||||||||||||||||||
 |  | | | | | | | | | | | | | | | | | | | | | | |
 | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — |
 | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 15 | 15 | 15 | 15 |
Feels °C | 9 | 8 | 8 | 8 | 8 | 9 | 8 | 8 | 7 | 8 | 8 | 7 | 7 | 8 | 9 | 9 | 8 | 8 | 10 | 10 | 11 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 12 | E 10 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SW 12 | SW 12 | SW 12 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 591 | 517 | 644 | 49 | 530 | 461 | 469 | 399 | 379 | 366 | 265 | 474 | 427 | 357 | 346 | 330 | 264 | 212 | 144 | 147 | 242 | 522 | 742 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | — | — | — | SSW 15 | — | — | SW 18 | SW 18 | — | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 11 | — | — |
| kJ | 74 | 52 | 52 | 50 | 52 | 75 | 76 | — | — | — | 121 | — | — | 12 | 12 | — | 65 | 65 | 85 | 85 | 82 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 7 | SE 7 | SE 6 | S 12 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 8 |
| kJ | 251 | 227 | 132 | 1027 | 100 | 135 | 156 | 176 | 176 | 192 | 217 | 288 | 356 | 331 | 331 | 428 | 478 | 504 | 501 | 418 | 333 | 294 | 264 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 139 | 246 | 319 | 370 | 1200 | 81 | 81 | 81 | 81 | 144 | 192 | 192 | 184 | 191 | 140 | 81 | 81 | 81 | 81 | 140 | 186 | 81 | 81 |
Best forecast wave conditions in Overberg | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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