Surf Forecasts:
How big are the waves at Arniston today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.1m), 11s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.1m), 14s period with SSW swell.
- Evening surf: Evening surf (18 Sep, local time) - 6ft (1.9m), 7s period with E swell.
The current surf forecast for Arniston at 7PM is: 1.0m 13s primary swell from a South-southwest direction and 0.1m 18s secondary swell from a Southwest direction, 1.9m 6s secondary swell from a East direction (forecast issued at 01:00pm September 18). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 3.5ft (1.1m) | 11s |
| Afternoon (18 Sep) | 3.5ft (1.1m) | 14s |
| Evening (18 Sep) | 6ft (1.9m) | 7s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Sun afternoon, min 14°C on Fri afternoon). Winds decreasing (strong winds from the E on Fri afternoon, light winds from the E by Sat night). | |||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||
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 14 | SSW 13 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 265 | 474 | 427 | 351 | 346 | 399 | 422 | 446 | 381 | 316 | 305 | 665 | 845 | 862 | 710 | 525 | 451 | 392 | 286 | 277 | 221 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | on | on | on | on | on | on |
High Tide | 7:01PM1.21m | 8:23AM1.08m | 9:36PM1.10m | 11:47AM1.14m | |||||||||||||||||
Low Tide | 12:36PM0.78m | 1:34AM0.81m | 2:13PM0.93m | 5:06AM0.83m | 6:07PM0.85m | ||||||||||||||||
 | | |  | | | | | |  | |  | |  | |  | | | | | | |
 | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — |
 | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:32 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 14 | 15 | 15 | 14 | 14 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 18 | 17 | 17 | 16 |
Feels °C | 7 | 8 | 6 | 7 | 9 | 10 | 8 | 8 | 10 | 11 | 13 | 13 | 14 | 15 | 15 | 14 | 15 | 15 | 13 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SW 12 | SSW 12 | SSW 12 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 13 | ESE 8 | SW 13 | SW 13 | SW 13 | SW 12 |
| kJ | 265 | 474 | 427 | 351 | 346 | 330 | 264 | 212 | 184 | 184 | 305 | 665 | 845 | 862 | 710 | 525 | 211 | 392 | 286 | 277 | 221 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | — | — | SW 18 | SW 18 | — | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 11 | — | — | — | ESE 8 | ESE 8 | SW 13 | — | — | — | — |
| kJ | 121 | — | — | 12 | 12 | — | 65 | 65 | 86 | 85 | 80 | — | — | — | 232 | 206 | 451 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | — | — | — | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
| kJ | 187 | 217 | 279 | 312 | 331 | 399 | 422 | 446 | 381 | 316 | 279 | 266 | 266 | 232 | — | — | — | 181 | 181 | 176 | 176 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 192 | 186 | 184 | 144 | 81 | 81 | 81 | 81 | 81 | 140 | 197 | 81 | 81 | 81 | 81 | 81 | 81 | 107 | 140 | 81 | 81 |
Best forecast wave conditions in Overberg | |||||||||||||||||||||
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