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) - 3ft (0.9m), 13s period with S swell.
The current surf forecast for Kosi Bay at 9AM is: 0.6m 16s primary swell from a South direction and 1.0m 7s secondary swell from a South direction (forecast issued at 01:00am August 21). The wind direction is predicted to be glassy and the swell rating is 2.
| 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) | 3ft (0.9m) | 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 Fri morning). Winds increasing (calm on Fri morning, strong winds from the S by Sat night). | ||||||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||||||||||
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 | 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 7 | S 16 | SSW 16 | SSW 16 | SSW 14 | S 13 | S 13 | SSE 9 | S 10 | S 11 | S 11 | S 11 | S 10 | S 10 | S 16 | S 6 | S 8 | S 9 | S 9 | S 10 | S 10 | S 10 | S 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 206 | 147 | 137 | 273 | 333 | 254 | 352 | 272 | 82 | 67 | 114 | 82 | 79 | 53 | 50 | 496 | 463 | 1131 | 1337 | 1275 | 1275 | 1045 | 890 | 716 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:18AM1.33m | 9:14PM1.28m | 11:22AM1.20m | 00:56AM1.30m | 1:42PM1.36m | |||||||||||||||||||
Low Tide | 2:15AM0.84m | 2:39PM0.90m | 4:16AM0.99m | 6:07PM0.98m | 7:24AM0.88m | 7:46PM0.81m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | | | |  | | | | |  | |
 | — | 6:13 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 18 | 21 | 22 | 20 | 21 | 21 | 20 | 20 | 20 | 23 | 26 | 25 | 23 | 20 | 20 | 19 | 20 | 21 | 22 | 20 | 20 | 20 |
Feels °C | 18 | 18 | 19 | 22 | 22 | 19 | 22 | 23 | 22 | 22 | 20 | 22 | 24 | 23 | 22 | 15 | 15 | 13 | 15 | 16 | 17 | 16 | 18 | 19 |
Swell 1 Height (m) Direction Period (s) | E 8 | S 7 | S 7 | S 7 | S 7 | SSW 14 | S 13 | S 13 | SSE 9 | S 10 | S 11 | S 11 | S 11 | S 10 | S 10 | NE 5 | NE 5 | E 8 | SSW 15 | E 8 | E 8 | E 8 | E 8 | S 10 |
| kJ | 30 | 147 | 124 | 103 | 64 | 254 | 352 | 272 | 82 | 67 | 114 | 82 | 79 | 53 | 50 | 26 | 8 | 12 | 78 | 5 | 5 | 5 | 5 | 716 |
Swell 2 Height (m) Direction Period (s) | S 16 | E 8 | S 16 | SSW 16 | SSW 16 | SSE 7 | E 8 | E 8 | SSW 12 | E 8 | E 8 | E 8 | E 8 | E 8 | SSW 15 | E 8 | E 8 | ENE 5 | E 8 | NE 6 | NE 6 | NE 6 | NE 6 | E 8 |
| kJ | 21 | 30 | 137 | 273 | 333 | 49 | 19 | 19 | 50 | 18 | 18 | 19 | 21 | 12 | 47 | 12 | 12 | 3 | 12 | 1 | 1 | 1 | 1 | 5 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 16 | E 8 | E 8 | E 8 | E 8 | — | — | E 8 | SSW 12 | S 16 | S 16 | SSW 16 | SSW 15 | E 8 | — | — | — | NE 6 | NE 6 | — | — | — | — |
| kJ | 18 | 53 | 29 | 30 | 29 | 30 | — | — | 18 | 46 | 20 | 20 | 47 | 45 | 12 | — | — | — | 1 | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 7 | — | — | — | — | — | — | — | — | NE 2 | NNE 3 | NNE 3 | NNE 4 | NNE 4 | NNE 4 | S 16 | S 6 | S 8 | S 9 | S 9 | S 10 | S 10 | S 10 | — |
| kJ | 206 | — | — | — | — | — | — | — | — | 1 | 1 | 6 | 19 | 28 | 24 | 496 | 463 | 1131 | 1337 | 1275 | 1275 | 1045 | 890 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 144 | 144 | 0 | 0 | 779 | 380 | 258 | 173 | 0 | 0 | 25 | 290 | 258 | 271 | 290 | 806 | 290 | 421 | 428 | 779 | 1050 | 378 | 177 | 144 |
Best forecast wave conditions in KwaZulu-Natal North Coast | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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