Surf Forecasts:
How big are the waves at Arniston today (22 Sep):
- Morning surf: Morning surf (22 Sep, local time) - 2.5ft (0.8m), 13s period with SSW swell.
- Afternoon surf: Afternoon surf (22 Sep, local time) - 2.5ft (0.8m), 12s period with SSW swell.
- Evening surf: Evening surf (22 Sep, local time) - 4ft (1.2m), 7s period with E swell.
The current surf forecast for Arniston at 12AM is: 0.5m 14s primary swell from a South-southwest direction and 0.6m 11s secondary swell from a Southwest direction, 1.4m 5s secondary swell from a East direction (forecast issued at 07:00pm September 21). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Sep) | 2.5ft (0.8m) | 13s |
| Afternoon (22 Sep) | 2.5ft (0.8m) | 12s |
| Evening (22 Sep) | 4ft (1.2m) | 7s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Tue afternoon. Warm (max 25°C on Tue afternoon, min 15°C on Mon night). Winds increasing (light winds from the NNE on Tue night, fresh winds from the E by Thu morning). | |||||||||||||||||||
Mon 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||||
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) | ESE 8 | SSW 15 | SSW 14 | SW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 6 | SE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 171 | 121 | 120 | 203 | 232 | 222 | 219 | 175 | 180 | 177 | 140 | 118 | 118 | 124 | 137 | 169 | 169 | 140 | 388 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | on | on |
High Tide | 00:42AM1.35m | 1:09PM1.48m | 1:15AM1.50m | 1:36PM1.65m | |||||||||||||||
Low Tide | 6:52PM0.70m | 6:59AM0.54m | 7:21PM0.53m | 7:26AM0.40m | 7:48PM0.37m | ||||||||||||||
 |  | | |  |  | | |  | | |  | | | | | |  | | |
 | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | 6:34 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — |
mm | — | — | — | — | — | — | — | — | 4 | — | — | 1 | 1 | 1 | 1 | 1 | — | — | — |
Temp °C | 18 | 16 | 15 | 15 | 15 | 16 | 21 | 25 | 22 | 22 | 22 | 19 | 17 | 16 | 17 | 18 | 17 | 16 | 16 |
Feels °C | 13 | 11 | 11 | 11 | 11 | 15 | 20 | 25 | 22 | 23 | 23 | 17 | 15 | 14 | 15 | 16 | 16 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SW 11 | SW 11 | SSW 11 | SSW 14 | SSW 13 | E 7 | E 7 | ESE 7 | ESE 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SW 10 |
| kJ | 81 | 96 | 99 | 79 | 232 | 222 | 187 | 171 | 160 | 164 | 138 | 118 | 118 | 124 | 137 | 169 | 169 | 140 | 28 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SSW 15 | SSW 14 | SSW 14 | SW 14 | SW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 11 | SW 11 | SW 10 | S 12 |
| kJ | 66 | 121 | 120 | 116 | 186 | 142 | 219 | 175 | 180 | 177 | 140 | 105 | 103 | 78 | 76 | 55 | 55 | 28 | 3 |
Swell 3 Height (m) Direction Period (s) | SSW 15 | — | — | SW 14 | SW 14 | — | — | S 17 | S 15 | SSE 7 | SSE 6 | SSE 6 | SE 6 | SE 6 | SE 6 | S 11 | S 10 | S 10 | S 18 |
| kJ | 72 | — | — | 203 | 189 | — | — | 5 | 4 | 9 | 16 | 14 | 10 | 11 | 10 | 39 | 18 | 8 | 6 |
Wind waves Height (m) Direction Period (s) | ESE 8 | E 5 | E 5 | E 6 | E 6 | E 6 | — | — | — | — | — | W 2 | WSW 2 | WSW 2 | SW 3 | SW 3 | SSE 4 | SSE 6 | SE 8 |
| kJ | 171 | 85 | 109 | 144 | 188 | 156 | — | — | — | — | — | 1 | 1 | 1 | 2 | 1 | 18 | 124 | 388 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 107 | 81 | 81 | 81 | 93 | 76 | 76 | 65 | 76 | 19 | 0 | 19 | 19 | 19 | 19 | 65 | 65 | 81 | 81 |
Best forecast wave conditions in Overberg | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
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