Surf Forecasts:
How big are the waves at Kosi Bay today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 2.5ft (0.7m), 8s period with E swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 6ft (1.8m), 6s period with S swell.
- Evening surf: Evening surf (20 Aug, local time) - 7ft (2.1m), 8s period with S swell.
The current surf forecast for Kosi Bay at 5PM is: 2.3m 7s primary swell from a South direction and 0.5m 8s secondary swell from a East direction (forecast issued at 01:00pm August 20). An open ocean swell of 0.4m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 2.5ft (0.7m) | 8s |
| Afternoon (20 Aug) | 6ft (1.8m) | 6s |
| Evening (20 Aug) | 7ft (2.1m) | 8s |
Table - waves today at Kosi Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 25°C on Sat afternoon, min 18°C on Thu night). Winds increasing (calm on Fri morning, fresh winds from the S by Sat night). | |||||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | |||||||||||||||||||
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) | E 8 | S 6 | S 7 | S 8 | S 8 | S 7 | S 7 | S 16 | SSW 16 | SSW 16 | SSW 14 | S 13 | S 13 | S 9 | S 12 | S 11 | S 11 | S 11 | S 10 | S 10 | S 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 48 | 134 | 572 | 665 | 367 | 236 | 143 | 137 | 273 | 333 | 254 | 352 | 268 | 78 | 129 | 114 | 82 | 79 | 52 | 49 | 240 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | glassy | cross-on | 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 | 1:46PM0.71m | 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 | 23 | 20 | 20 | 19 | 19 | 18 | 18 | 20 | 22 | 20 | 21 | 20 | 20 | 19 | 20 | 23 | 25 | 24 | 23 | 21 |
Feels °C | 19 | 19 | 16 | 17 | 17 | 18 | 18 | 19 | 21 | 22 | 19 | 21 | 21 | 22 | 20 | 21 | 22 | 23 | 23 | 23 | 15 |
Swell 1 Height (m) Direction Period (s) | NNE 5 | E 8 | E 8 | E 8 | E 8 | E 8 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | S 13 | S 13 | S 9 | S 12 | S 11 | S 11 | S 11 | S 10 | S 10 | NE 4 |
| kJ | 39 | 44 | 30 | 30 | 30 | 30 | 143 | 127 | 106 | 82 | 62 | 352 | 268 | 78 | 129 | 114 | 82 | 79 | 52 | 49 | 16 |
Swell 2 Height (m) Direction Period (s) | E 8 | NNE 5 | NE 5 | NNE 5 | SSW 14 | S 16 | E 8 | S 16 | SSW 16 | SSW 16 | SSW 14 | E 8 | E 8 | SSW 12 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 45 | 15 | 7 | 2 | 19 | 21 | 30 | 137 | 273 | 333 | 254 | 19 | 19 | 50 | 18 | 18 | 19 | 21 | 21 | 21 | 12 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 14 | S 16 | SW 13 | SSW 16 | E 8 | E 8 | E 8 | E 8 | — | — | E 8 | S 16 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 15 | E 6 |
| kJ | 48 | 48 | 24 | 19 | 21 | 7 | 53 | 29 | 29 | 29 | 30 | — | — | 18 | 5 | 20 | 20 | 47 | 45 | 46 | 1 |
Wind waves Height (m) Direction Period (s) | S 3 | S 6 | S 7 | S 8 | S 8 | S 7 | — | — | — | — | — | — | — | — | — | — | NNE 3 | NNE 4 | NNE 4 | NE 4 | S 16 |
| kJ | 5 | 134 | 572 | 665 | 367 | 236 | — | — | — | — | — | — | — | — | — | — | 3 | 16 | 26 | 17 | 240 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 290 | 1051 | 705 | 228 | 177 | 177 | 144 | 144 | 0 | 380 | 380 | 271 | 173 | 0 | 0 | 0 | 290 | 271 | 1206 | 290 | 1049 |
Best forecast wave conditions in KwaZulu-Natal North Coast | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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