Surf Forecasts:
How big are the waves at Arniston today (13 Sep):
- Morning surf: Morning surf (13 Sep, local time) - 11ft (3.5m), 9s period with ESE swell.
- Afternoon surf: Afternoon surf (13 Sep, local time) - 10ft (3.0m), 9s period with ESE swell.
- Evening surf: Evening surf (13 Sep, local time) - 10ft (3.0m), 10s period with ESE swell.
The current surf forecast for Arniston at 3AM is: 3.0m 8s primary swell from a East-southeast direction and 1.6m 15s secondary swell from a South-southwest direction (forecast issued at 07:00pm September 12). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Sep) | 11ft (3.5m) | 9s |
| Afternoon (13 Sep) | 10ft (3.0m) | 9s |
| Evening (13 Sep) | 10ft (3.0m) | 10s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Sat night. Warm (max 20°C on Tue morning, min 15°C on Sat night). Winds decreasing (strong winds from the E on Sat night, light winds from the W by Mon night). | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | |||||||||||||||||
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 17 | SSW 16 | SSW 16 | SSW 15 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 1553 | 1393 | 1341 | 1357 | 1678 | 1707 | 1461 | 1346 | 1238 | 1632 | 1260 | 1313 | 1160 | 1064 | 846 | 763 | 684 | 598 | 544 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off |
High Tide | 3:56PM2.06m | 4:12AM1.86m | 4:25PM1.99m | 4:42AM1.77m | 4:54PM1.87m | ||||||||||||||
Low Tide | 10:12PM0.03m | 10:15AM0.09m | 10:40PM0.11m | 10:42AM0.20m | |||||||||||||||
 |  | | |  | |  | |  |  | | | | | | | | | | |
 | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — |
 | 6:27 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:29 | — | — |
mm | 5 | 2 | 2 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 14 | 15 | 15 | 15 | 15 | 16 | 16 | 17 | 17 | 16 | 16 | 17 | 16 | 16 | 18 | 18 | 18 | 17 | 16 |
Feels °C | 7 | 8 | 8 | 8 | 8 | 9 | 10 | 13 | 14 | 15 | 15 | 17 | 13 | 15 | 15 | 13 | 17 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
| kJ | 1553 | 1393 | 1341 | 1274 | 1067 | 857 | 742 | 577 | 1238 | 1157 | 1260 | 1313 | 1160 | 1064 | 846 | 763 | 684 | 598 | 544 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | — | — | — | — | — | — | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SW 12 | SW 12 | SSW 12 |
| kJ | 40 | 14 | — | — | — | — | — | — | 460 | 379 | 336 | 265 | 209 | 196 | 169 | 125 | 142 | 164 | 90 |
Swell 3 Height (m) Direction Period (s) | — | SE 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 7 | WSW 8 | WSW 8 |
| kJ | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 59 | 73 | 25 |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | — | ESE 10 | — | — | — | W 4 | WSW 5 | WSW 7 | W 7 | W 7 | W 8 |
| kJ | 748 | 950 | 1137 | 1357 | 1678 | 1707 | 1461 | 1346 | — | 1632 | — | — | — | 20 | 21 | 61 | 226 | 396 | 399 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 184 | 184 | 144 | 139 | 139 | 81 | 81 | 81 | 81 | 81 | 76 | 103 | 19 | 19 | 65 | 183 | 0 | 0 | 0 |
Best forecast wave conditions in Overberg | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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