Surf Forecasts:
How big are the waves at Kosi Bay today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 5ft (1.6m), 10s period with ESE swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 5ft (1.6m), 10s period with ESE swell.
- Evening surf: Evening surf (17 Aug, local time) - 4.5ft (1.4m), 9s period with ESE swell.
The current surf forecast for Kosi Bay at 7PM is: 1.5m 9s primary swell from a East direction and 0.3m 10s secondary swell from a South-southeast direction (forecast issued at 01:00pm August 17). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 5ft (1.6m) | 10s |
| Afternoon (17 Aug) | 5ft (1.6m) | 10s |
| Evening (17 Aug) | 4.5ft (1.4m) | 9s |
Table - waves today at Kosi Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 23°C on Tue afternoon, min 18°C on Mon night). Winds increasing (light winds from the WSW on Wed morning, fresh winds from the S by Thu morning). | |||||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||||
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) | ESE 10 | ESE 10 | ESE 10 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 454 | 445 | 435 | 405 | 340 | 340 | 289 | 289 | 243 | 238 | 232 | 186 | 181 | 177 | 144 | 140 | 115 | 112 | 109 | 80 | 78 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross | cross | cross-off | cross-off | off | off | cross-off | cross-on | cross-on | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:27PM2.04m | 6:35AM1.89m | 6:55PM1.86m | 7:04AM1.71m | 7:24PM1.67m | ||||||||||||||||
Low Tide | 12:15PM0.15m | 00:34AM0.32m | 12:44PM0.32m | 1:03AM0.48m | 1:13PM0.51m | ||||||||||||||||
 | | |  | | | | | | | | | |  |  | | | | | | | |
 | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — |
 | — | — | 5:28 | — | — | — | — | — | — | — | 5:29 | — | — | — | — | — | — | — | 5:29 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 20 | 20 | 20 | 19 | 18 | 18 | 22 | 23 | 21 | 20 | 20 | 19 | 20 | 19 | 22 | 23 | 21 | 20 | 20 |
Feels °C | 21 | 20 | 20 | 21 | 21 | 20 | 19 | 19 | 23 | 23 | 21 | 20 | 20 | 19 | 20 | 19 | 22 | 21 | 19 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 |
| kJ | 454 | 445 | 435 | 405 | 340 | 340 | 289 | 289 | 243 | 238 | 232 | 186 | 181 | 177 | 144 | 140 | 115 | 112 | 109 | 80 | 78 |
Swell 2 Height (m) Direction Period (s) | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | — | SW 18 | S 18 | SE 11 | SSW 7 | S 6 | SSW 6 | SSW 6 | S 6 | SSW 15 | SSW 15 |
| kJ | 22 | 20 | 20 | 20 | 10 | 9 | 9 | 9 | 9 | 9 | — | 12 | 6 | 5 | 5 | 17 | 12 | 7 | 3 | 22 | 23 |
Swell 3 Height (m) Direction Period (s) | S 15 | S 15 | S 14 | S 13 | S 12 | S 12 | SW 11 | S 18 | S 17 | SW 17 | S 18 | SW 18 | SE 11 | S 17 | S 11 | S 11 | SE 11 | S 17 | S 17 | S 6 | S 6 |
| kJ | 4 | 4 | 4 | 3 | 3 | 3 | 5 | 6 | 6 | 12 | 6 | 12 | 5 | 6 | 2 | 2 | 5 | 6 | 6 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SSE 3 | S 4 | S 4 | S 5 | SSW 7 | — | NE 2 | NE 3 | NNE 4 | N 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 3 | 7 | 14 | 12 | 56 | — | 1 | 12 | 23 | 38 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 380 | 380 | 337 | 0 | 0 | 0 | 0 | 0 | 614 | 228 | 177 | 177 | 177 | 0 | 0 | 0 | 380 | 380 | 337 | 271 |
Best forecast wave conditions in KwaZulu-Natal North Coast | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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