Surf Forecasts:
How big are the waves at Arniston today (15 Aug):
- Morning surf: Morning surf (15 Aug, local time) - 2.5ft (0.8m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (15 Aug, local time) - 2.5ft (0.8m), 13s period with SW swell.
- Evening surf: Evening surf (15 Aug, local time) - 2.5ft (0.8m), 14s period with SW swell.
The current surf forecast for Arniston at 9AM is: 0.8m 14s primary swell from a Southwest direction and 1.0m 8s secondary swell from a East direction (forecast issued at 01:00am August 15). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | 2.5ft (0.8m) | 14s |
| Afternoon (15 Aug) | 2.5ft (0.8m) | 13s |
| Evening (15 Aug) | 2.5ft (0.8m) | 14s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Sun afternoon, min 13°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||||||||||
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) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 14 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 224 | 224 | 228 | 184 | 218 | 208 | 215 | 281 | 208 | 189 | 196 | 234 | 273 | 309 | 415 | 736 | 706 | 686 | 577 | 451 | 458 | 299 | 248 | 485 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-on | cross-on | cross-on | on | cross-on | cross | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:41AM1.85m | 5:01PM2.00m | 5:15AM1.75m | 5:33PM1.89m | 5:48AM1.62m | 6:04PM1.73m | ||||||||||||||||||
Low Tide | 10:47AM0.06m | 11:17PM0.14m | 11:18AM0.17m | 11:49PM0.26m | 11:47AM0.31m | |||||||||||||||||||
 | |  |  |  | |  | | |  | | | | | | | | | | | | | | | |
 | — | 7:18 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:08 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 13 | 13 | 14 | 15 | 14 | 14 | 14 | 15 | 15 | 14 | 16 | 18 | 17 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 15 | 14 |
Feels °C | 12 | 11 | 11 | 11 | 12 | 11 | 12 | 13 | 14 | 13 | 10 | 13 | 14 | 12 | 12 | 14 | 13 | 14 | 13 | 14 | 12 | 11 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | SW 13 | SW 14 | E 8 | E 8 | E 8 | SW 14 | E 8 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 14 |
| kJ | 153 | 146 | 143 | 116 | 113 | 90 | 215 | 281 | 88 | 68 | 66 | 234 | 72 | 309 | 415 | 736 | 706 | 686 | 577 | 451 | 458 | 299 | 238 | 485 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | E 8 | E 8 | SW 14 | SW 14 | SW 13 | E 8 | SW 15 | E 7 | E 7 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | SW 16 | E 10 |
| kJ | 224 | 224 | 228 | 184 | 218 | 208 | 88 | 88 | 208 | 189 | 196 | 76 | 273 | 70 | 40 | 29 | 28 | 28 | 83 | 81 | 79 | 74 | 248 | 49 |
Swell 3 Height (m) Direction Period (s) | SW 4 | SW 7 | WSW 7 | WSW 7 | WSW 8 | — | — | E 4 | SSW 13 | SW 12 | SW 16 | SW 16 | — | — | SW 8 | ESE 10 | ESE 10 | ESE 10 | — | — | — | SSW 16 | E 9 | E 8 |
| kJ | 4 | 12 | 5 | 5 | 103 | — | — | 8 | 63 | 72 | 88 | 67 | — | — | 28 | 36 | 36 | 35 | — | — | — | 220 | 83 | 18 |
Wind waves Height (m) Direction Period (s) | W 7 | — | — | ENE 2 | E 3 | E 3 | E 4 | — | — | — | WSW 3 | WSW 3 | WSW 6 | WSW 4 | WSW 4 | — | — | — | — | — | SW 2 | — | — | — |
| kJ | 71 | — | — | 1 | 2 | 5 | 7 | — | — | — | 2 | 3 | 31 | 32 | 13 | — | — | — | — | — | 2 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 76 | 76 | 81 | 81 | 76 | 76 | 0 | 0 | 19 | 103 | 113 | 113 | 103 | 0 | 0 | 0 | 0 | 0 | 120 | 103 | 105 | 0 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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