Surf Forecasts:
How big are the waves at Arniston today (20 Jul):
- Afternoon surf: Afternoon surf (20 Jul, local time) - 3ft (0.9m), 11s period with ESE swell.
- Evening surf: Evening surf (20 Jul, local time) - 3.5ft (1.1m), 11s period with SE swell.
The current surf forecast for Arniston at 10PM is: 1.1m 11s primary swell from a Southeast direction and 0.7m 16s secondary swell from a South-southwest direction, 0.7m 8s secondary swell from a West-southwest direction (forecast issued at 07:00pm July 20). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | - | - |
| Afternoon (20 Jul) | 3ft (0.9m) | 11s |
| Evening (20 Jul) | 3.5ft (1.1m) | 11s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Thu morning. Very mild (max 16°C on Thu afternoon, min 12°C on Wed morning). Winds increasing (light winds from the N on Tue morning, fresh winds from the WSW by Wed afternoon). | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||||
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) | SW 10 | ESE 11 | SE 11 | SE 11 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 14 | S 13 | SSW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 227 | 219 | 288 | 288 | 716 | 1061 | 1285 | 1433 | 1243 | 987 | 812 | 601 | 573 | 554 | 579 | 469 | 661 | 506 | 439 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | on | on | on | cross-on | cross-off | off | off | off | cross-off | off | off | off |
High Tide | 7:35PM1.56m | 8:00AM1.28m | 8:26PM1.42m | 9:10AM1.17m | 9:38PM1.31m | ||||||||||||||
Low Tide | 2:03AM0.57m | 1:53PM0.64m | 3:03AM0.67m | 2:55PM0.77m | |||||||||||||||
 |  | | | | | | | | | |  | |  | | | | | | |
 | — | — | — | — | 7:41 | — | — | — | — | — | — | — | 7:39 | — | — | — | — | — | — |
 | 5:49 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 13 | 15 | 15 | 13 | 13 |
Feels °C | 12 | 9 | 11 | 11 | 12 | 11 | 12 | 13 | 12 | 12 | 11 | 12 | 11 | 9 | 10 | 9 | 10 | 8 | 10 |
Swell 1 Height (m) Direction Period (s) | ESE 11 | ESE 11 | SE 11 | SE 11 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 14 | S 13 | SSW 12 |
| kJ | 227 | 219 | 288 | 288 | 716 | 1061 | 1285 | 1433 | 1243 | 987 | 812 | 601 | 573 | 554 | 579 | 469 | 661 | 506 | 439 |
Swell 2 Height (m) Direction Period (s) | SW 10 | SSW 10 | SSW 16 | SW 12 | SE 11 | SE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 |
| kJ | 208 | 92 | 273 | 142 | 283 | 283 | 256 | 251 | 238 | 216 | 157 | 139 | 76 | 110 | 135 | 135 | 105 | 107 | 82 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | S 17 | SW 8 | SSW 16 | SSE 6 | S 8 | SSE 5 | W 9 | W 9 | W 9 | — | — | ESE 11 | — | SE 15 | S 14 | SW 12 | SW 12 | WSW 7 |
| kJ | 16 | 149 | 50 | 259 | 4 | 1 | 3 | 14 | 6 | 6 | — | — | 85 | — | 9 | 107 | 38 | 40 | 35 |
Wind waves Height (m) Direction Period (s) | SW 9 | WSW 8 | SW 8 | — | — | — | — | — | — | — | — | — | — | — | W 2 | WSW 3 | WSW 3 | WSW 6 | W 3 |
| kJ | 208 | 59 | 138 | — | — | — | — | — | — | — | — | — | — | — | 1 | 6 | 6 | 42 | 8 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 65 | 19 | 19 | 0 | 0 | 0 | 0 | 76 | 135 | 81 | 76 | 0 | 0 | 0 | 0 | 160 | 133 | 0 | 0 |
Best forecast wave conditions in Overberg | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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