Surf Forecasts:
How big are the waves at Kosi Bay today (10 Aug):
- Morning surf: Morning surf (10 Aug, local time) - 8ft (2.5m), 8s period with S swell.
- Afternoon surf: Afternoon surf (10 Aug, local time) - 11ft (3.5m), 8s period with S swell.
- Evening surf: Evening surf (10 Aug, local time) - 13ft (4.0m), 9s period with S swell.
The current surf forecast for Kosi Bay at 1AM is: 0.9m 7s primary swell from a East direction and 0.6m 3s secondary swell from a South direction (forecast issued at 07:00pm August 09). An open ocean swell of 1.0m 6s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Aug) | 8ft (2.5m) | 8s |
| Afternoon (10 Aug) | 11ft (3.5m) | 8s |
| Evening (10 Aug) | 13ft (4.0m) | 9s |
Table - waves today at Kosi Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 38mm), heaviest during Tue night. Warm (max 23°C on Sun night, min 16°C on Tue night). Winds decreasing (strong winds from the SSE on Mon night, moderate winds from the SSE by Tue night). | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | |||||||||||||||||
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) | E 9 | E 9 | E 9 | E 7 | S 6 | S 7 | S 8 | S 8 | S 9 | S 9 | S 10 | S 10 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 80 | 78 | 99 | 72 | 200 | 657 | 796 | 1493 | 2200 | 2526 | 3109 | 5321 | 5587 | 4394 | 3874 | 3677 | 2845 | 2295 | 2366 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 1:53AM1.69m | 2:22PM1.76m | 2:45AM1.88m | 3:08PM1.99m | |||||||||||||||
Low Tide | 7:30PM0.61m | 8:06AM0.51m | 8:30PM0.41m | 8:53AM0.30m | 9:15PM0.23m | ||||||||||||||
 |  | | |  |  |  | | |  | |  | |  | |  | | | | |
 | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — |
 | 5:23 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 2 | 6 | 1 | 2 | 3 |
Temp °C | 24 | 23 | 23 | 21 | 20 | 19 | 18 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 16 |
Feels °C | 20 | 19 | 21 | 19 | 15 | 13 | 11 | 11 | 12 | 11 | 12 | 10 | 9 | 10 | 9 | 9 | 8 | 10 | 13 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | NNE 6 | E 7 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | — | E 8 | SSW 15 | SSW 15 |
| kJ | 80 | 78 | 99 | 68 | 89 | 99 | 78 | 60 | 66 | 90 | 92 | 87 | 83 | 106 | 76 | — | 169 | 44 | 43 |
Swell 2 Height (m) Direction Period (s) | S 7 | SSW 18 | SSW 17 | E 7 | NNE 6 | NE 6 | NE 6 | NE 6 | ENE 6 | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 31 | 29 | 72 | 22 | 26 | 21 | 10 | 4 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 14 | S 7 | SE 7 | E 9 | S 17 | S 17 | S 17 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 14 | 4 | 2 | 42 | 6 | 6 | 6 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 5 | NNE 5 | NNE 6 | S 3 | S 6 | S 7 | S 8 | S 8 | S 9 | S 9 | S 10 | S 10 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SE 9 |
| kJ | 95 | 128 | 166 | 7 | 200 | 657 | 796 | 1493 | 2200 | 2526 | 3109 | 5321 | 5587 | 4394 | 3874 | 3677 | 2845 | 2295 | 2366 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 229 | 144 | 25 | 1135 | 1051 | 290 | 290 | 806 | 779 | 428 | 614 | 431 | 428 | 407 | 407 | 1252 | 705 | 1252 | 1135 |
Best forecast wave conditions in KwaZulu-Natal North Coast | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
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