Surf Forecasts:
How big are the waves at Kosi Bay today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 2ft (0.6m), 16s period with S swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 2.5ft (0.8m), 16s period with SSW swell.
- Evening surf: Evening surf (21 Aug, local time) - 3.5ft (1.0m), 13s period with S swell.
The current surf forecast for Kosi Bay at 12AM is: 1.7m 8s primary swell from a South direction and 0.5m 8s secondary swell from a East direction, 0.2m 14s secondary swell from a South-southwest direction (forecast issued at 07:00pm August 20). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 2ft (0.6m) | 16s |
| Afternoon (21 Aug) | 2.5ft (0.8m) | 16s |
| Evening (21 Aug) | 3.5ft (1.0m) | 13s |
Table - waves today at Kosi Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Sat afternoon, min 18°C on Thu night). Winds increasing (calm on Fri night, strong winds from the S 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) | S 7 | S 8 | S 8 | S 7 | S 7 | S 16 | SSW 16 | SSW 16 | SSW 14 | S 13 | S 13 | SSE 9 | S 12 | S 11 | S 11 | S 11 | S 10 | S 10 | S 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 569 | 607 | 367 | 230 | 147 | 137 | 273 | 333 | 254 | 356 | 272 | 64 | 132 | 114 | 82 | 79 | 75 | 49 | 243 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross | cross-off | glassy | cross | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on |
High Tide | 7:59PM1.46m | 8:18AM1.33m | 9:14PM1.28m | 11:22AM1.20m | |||||||||||||||
Low Tide | 2:15AM0.84m | 2:39PM0.90m | 4:16AM0.99m | 6:07PM0.98m | |||||||||||||||
 |  | |  | | | | | | | | | |  | | | | | | |
 | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 20 | 19 | 18 | 18 | 21 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 23 | 26 | 24 | 23 | 20 |
Feels °C | 17 | 17 | 19 | 19 | 18 | 19 | 22 | 22 | 21 | 21 | 23 | 23 | 22 | 20 | 22 | 24 | 22 | 22 | 14 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | S 7 | S 7 | SSE 7 | SSE 7 | SSW 14 | S 13 | S 13 | SSE 9 | S 12 | S 11 | S 11 | S 11 | S 10 | S 10 | NNE 5 |
| kJ | 30 | 30 | 30 | 30 | 147 | 127 | 86 | 84 | 254 | 356 | 272 | 64 | 132 | 114 | 82 | 79 | 75 | 49 | 27 |
Swell 2 Height (m) Direction Period (s) | NE 5 | NNE 5 | SSW 14 | S 16 | E 8 | S 16 | SSW 16 | SSW 16 | SSE 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSW 15 | E 8 |
| kJ | 7 | 2 | 19 | 21 | 30 | 137 | 273 | 333 | 49 | 19 | 19 | 18 | 18 | 18 | 19 | 21 | 21 | 46 | 12 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 14 | S 16 | SSW 13 | SSW 16 | E 8 | E 8 | E 8 | E 8 | — | — | SSW 12 | S 16 | S 16 | S 16 | SSW 16 | SSW 15 | E 8 | — |
| kJ | 24 | 19 | 21 | 18 | 53 | 29 | 29 | 29 | 30 | — | — | 50 | 5 | 20 | 20 | 47 | 45 | 12 | — |
Wind waves Height (m) Direction Period (s) | S 7 | S 8 | S 8 | S 7 | — | — | — | — | — | — | — | — | — | NNE 2 | NNE 3 | NNE 4 | NNE 4 | NNE 4 | S 16 |
| kJ | 569 | 607 | 367 | 230 | — | — | — | — | — | — | — | — | — | 1 | 4 | 16 | 26 | 22 | 243 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 705 | 228 | 177 | 144 | 144 | 0 | 0 | 779 | 380 | 258 | 229 | 0 | 0 | 25 | 290 | 258 | 1213 | 290 | 661 |
Best forecast wave conditions in KwaZulu-Natal North Coast | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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