Surf Forecasts:
How big are the waves at Dias Beach today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 7ft (2.1m), 11s period with SW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 5ft (1.5m), 11s period with WSW swell.
- Evening surf: Evening surf (21 Aug, local time) - 4.5ft (1.3m), 11s period with WSW swell.
The current surf forecast for Dias Beach at 3AM is: 2.3m 12s primary swell from a Southwest direction (forecast issued at 07:00pm August 20). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 7ft (2.1m) | 11s |
| Afternoon (21 Aug) | 5ft (1.5m) | 11s |
| Evening (21 Aug) | 4.5ft (1.3m) | 11s |
Table - waves today at Dias Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Sat afternoon, min 12°C on Thu night). Winds decreasing (fresh winds from the SE on Fri morning, light winds from the W by Sat night). | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 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 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | SSW 10 | SSW 13 | SSW 12 | SSW 13 | SW 11 | SW 11 | SW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 2659 | 2185 | 1934 | 1605 | 1474 | 1107 | 947 | 527 | 458 | 419 | 366 | 366 | 320 | 587 | 543 | 497 | 1112 | 1293 | 1317 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | on |
High Tide | 8:29PM1.04m | 9:44AM0.92m | 10:23PM0.98m | 11:55AM0.96m | |||||||||||||||
Low Tide | 3:16AM0.63m | 3:46PM0.71m | 5:32AM0.62m | 6:06PM0.66m | |||||||||||||||
 |  | | | | | | | |  |  | | | | |  |  | | | |
 | — | — | — | — | 7:18 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — | — |
 | 6:17 | — | — | — | — | — | — | — | 6:19 | — | — | — | — | — | — | — | 6:20 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 16 | 15 | 15 |
Feels °C | 10 | 9 | 8 | 8 | 7 | 6 | 6 | 9 | 9 | 11 | 11 | 12 | 12 | 10 | 11 | 11 | 14 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | WSW 11 | WSW 11 | WSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 13 | SSW 12 | SSW 13 | SW 11 | SW 11 | SW 11 |
| kJ | 2659 | 2185 | 1934 | 1605 | 1474 | 1107 | 947 | 527 | 458 | 419 | 338 | 292 | 320 | 587 | 543 | 497 | 1112 | 1293 | 1317 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | SSW 11 | SSW 11 | SSW 10 | SSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 6 | WSW 16 | WSW 16 | WSW 15 |
| kJ | — | — | — | — | — | — | 486 | 372 | 310 | 304 | 366 | 366 | 291 | 237 | 265 | 40 | 26 | 98 | 246 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | ESE 4 | ESE 4 | SSW 14 | ESE 4 | — | WSW 11 | — | NNW 4 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 21 | 13 | 207 | 1 | — | 103 | — | 5 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | ESE 3 | — | SE 4 | ESE 4 | SE 5 | SE 5 | SE 5 | SE 5 | — | — | NW 2 | NW 3 | NNW 4 | — | — | — |
| kJ | — | — | — | 6 | — | 24 | 50 | 54 | 63 | 71 | 38 | — | — | 1 | 8 | 11 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 29 | 30 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 21 | 4 | 21 | 4 | 4 | 4 | 4 | 7 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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