Surf Forecasts:
How big are the waves at Arniston today (15 Sep):
- Morning surf: Morning surf (15 Sep, local time) - 4.5ft (1.4m), 10s period with ESE swell.
- Afternoon surf: Afternoon surf (15 Sep, local time) - 8ft (2.5m), 8s period with W swell.
- Evening surf: Evening surf (15 Sep, local time) - 3ft (0.9m), 16s period with SW swell.
The current surf forecast for Arniston at 11AM is: 2.2m 8s primary swell from a West direction and 1.4m 10s secondary swell from a East-southeast direction, 0.8m 12s secondary swell from a Southwest direction (forecast issued at 07:00am September 15). The wind direction is predicted to be offshore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 4.5ft (1.4m) | 10s |
| Afternoon (15 Sep) | 8ft (2.5m) | 8s |
| Evening (15 Sep) | 3ft (0.9m) | 16s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Tue night. Warm (max 21°C on Tue afternoon, min 12°C on Tue night). Mainly near gales. | |||||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||||||||
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) | E 10 | ESE 10 | W 8 | W 8 | E 11 | SW 16 | SW 15 | SW 15 | SW 10 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 12 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 477 | 426 | 544 | 609 | 388 | 358 | 1053 | 685 | 910 | 476 | 390 | 465 | 458 | 406 | 465 | 512 | 601 | 589 | 569 | 491 | 461 | 297 | 399 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | cross-off | cross | cross | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 5:21PM1.71m | 5:39AM1.52m | 5:49PM1.55m | 6:09AM1.37m | 6:19PM1.38m | ||||||||||||||||||
Low Tide | 11:08AM0.33m | 11:33PM0.36m | 11:34AM0.47m | 00:00AM0.51m | 12:01PM0.62m | ||||||||||||||||||
 |  | | |  | |  | | |  | | | |  |  | | | | | | | | | |
 | 6:39 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — |
 | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | — | — | — | — | — | — | 1 | 4 | 3 | — | — | — | — | — | 2 | 1 | — | — | — | — | — | 1 | 1 |
Temp °C | 15 | 15 | 19 | 21 | 20 | 18 | 14 | 12 | 13 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 |
Feels °C | 12 | 12 | 15 | 15 | 16 | 12 | 4 | 6 | 8 | 8 | 9 | 10 | 9 | 9 | 8 | 6 | 7 | 8 | 8 | 8 | 9 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | E 10 | ESE 10 | ESE 10 | E 10 | E 11 | E 11 | E 11 | SW 15 | SSW 10 | SSW 9 | SW 14 | S 7 | SW 13 | SW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 12 |
| kJ | 477 | 426 | 418 | 367 | 388 | 338 | 286 | 685 | 349 | 261 | 390 | 110 | 458 | 406 | 465 | 512 | 601 | 589 | 569 | 491 | 461 | 297 | 399 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SW 12 | SW 12 | SW 17 | SSW 16 | SW 16 | — | E 11 | SW 14 | SW 14 | E 11 | SW 14 | S 7 | S 7 | E 10 | SSW 8 | S 7 | E 10 | E 10 | E 10 | E 10 | SW 12 | — |
| kJ | 81 | 84 | 161 | 505 | 330 | 358 | — | 188 | 482 | 476 | 110 | 465 | 113 | 111 | 75 | 89 | 38 | 52 | 72 | 72 | 32 | 116 | — |
Swell 3 Height (m) Direction Period (s) | SW 15 | SSW 15 | S 10 | S 10 | S 9 | S 9 | — | — | E 11 | E 11 | SW 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | — | — | — | — | — | — |
| kJ | 37 | 23 | 8 | 7 | 2 | 2 | — | — | 149 | 112 | 64 | 78 | 75 | 75 | 100 | 74 | 52 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | WSW 3 | W 8 | W 8 | W 9 | WSW 10 | SW 15 | SSW 5 | SW 10 | — | S 7 | — | — | — | S 7 | SE 6 | SE 6 | SE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 |
| kJ | 245 | 2 | 544 | 609 | 73 | 125 | 1053 | 97 | 910 | — | 111 | — | — | — | 203 | 127 | 141 | 151 | 154 | 162 | 140 | 156 | 176 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 105 | 113 | 0 | 113 | 120 | 183 | 65 | 113 | 161 | 208 | 246 | 246 | 81 | 81 | 81 | 139 | 319 | 1149 | 1176 | 246 | 246 |
Best forecast wave conditions in Overberg | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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