Surf Forecasts:
How big are the waves at Arniston today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 5ft (1.6m), 12s period with SSW swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 5ft (1.6m), 12s period with SSW swell.
- Evening surf: Evening surf (19 Aug, local time) - 5ft (1.5m), 12s period with SSW swell.
The current surf forecast for Arniston at 6AM is: 1.7m 12s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a East direction (forecast issued at 01:00am August 19). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 5ft (1.6m) | 12s |
| Afternoon (19 Aug) | 5ft (1.6m) | 12s |
| Evening (19 Aug) | 5ft (1.5m) | 12s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 15°C on Thu afternoon, min 12°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||||||||||
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 | 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 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | WSW 11 | SSW 11 | SSW 11 | SSW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 996 | 871 | 857 | 715 | 715 | 636 | 636 | 668 | 1026 | 1708 | 2171 | 1693 | 1465 | 1116 | 949 | 787 | 655 | 569 | 521 | 469 | 517 | 401 | 380 | 373 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | glassy | cross-off | cross-off | cross-off | off | off | off | off | off | cross | cross | cross-on | on | on | cross-on | on | cross-on | on | on | cross-on | cross-on |
High Tide | 6:55AM1.32m | 7:13PM1.39m | 7:44AM1.17m | 8:10PM1.23m | 9:44AM1.07m | 10:34PM1.16m | ||||||||||||||||||
Low Tide | 00:54AM0.55m | 12:47PM0.63m | 1:35AM0.69m | 1:29PM0.79m | 2:58AM0.81m | 3:27PM0.91m | ||||||||||||||||||
 | |  | | | | | | | | | |  | | |  | | | | | | |  | | |
 | — | 7:15 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:10 | — | — | — | — | — | — | — | 6:12 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 12 | 13 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 14 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 |
Feels °C | 11 | 11 | 11 | 12 | 11 | 9 | 9 | 11 | 11 | 11 | 11 | 13 | 13 | 11 | 12 | 12 | 11 | 10 | 10 | 8 | 10 | 10 | 12 | 14 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 |
| kJ | 996 | 871 | 857 | 715 | 715 | 636 | 636 | 668 | 1026 | 1708 | 2171 | 1693 | 1465 | 1116 | 949 | 787 | 655 | 569 | 521 | 423 | 408 | 401 | 380 | 373 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | SSW 11 | WSW 11 | E 9 | E 9 | E 4 |
| kJ | 31 | 31 | 31 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 469 | 517 | 6 | 6 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 9 | — | E 9 | E 8 | E 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | 6 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | WSW 4 | — | — | — | — | — | — | — | — | — | — | — | — | E 2 | E 3 | E 4 | ESE 4 | E 4 | — |
| kJ | — | — | — | — | — | 9 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 7 | 13 | 17 | 13 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 76 | 76 | 0 | 0 | 135 | 135 | 76 | 0 | 0 | 76 | 76 | 76 | 113 | 83 | 81 | 81 | 81 | 81 | 81 | 81 | 93 | 81 | 81 | 76 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Arniston surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest