Surf Forecasts:
How big are the waves at Kosi Bay today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 5ft (1.5m), 10s period with E swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 4.5ft (1.3m), 10s period with E swell.
- Evening surf: Evening surf (17 Sep, local time) - 4ft (1.2m), 10s period with E swell.
The current surf forecast for Kosi Bay at 7AM is: 1.5m 10s primary swell from a East direction and 0.1m 16s secondary swell from a South direction, 2.1m 7s secondary swell from a South direction (forecast issued at 01:00am September 17). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 5ft (1.5m) | 10s |
| Afternoon (17 Sep) | 4.5ft (1.3m) | 10s |
| Evening (17 Sep) | 4ft (1.2m) | 10s |
Table - waves today at Kosi Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Fri night. Warm (max 21°C on Thu morning, min 17°C on Thu night). Winds decreasing (strong winds from the S on Fri afternoon, light winds from the S by Sat night). | ||||||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||||||||||
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) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | S 7 | S 7 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SE 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 567 | 512 | 450 | 394 | 333 | 327 | 268 | 219 | 168 | 340 | 399 | 509 | 671 | 1067 | 2023 | 2405 | 2054 | 1778 | 1454 | 1180 | 903 | 766 | 604 | 460 |
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-on | cross-on | cross-on | cross | cross | cross | 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 | 6:22AM1.75m | 6:35PM1.68m | 6:47AM1.56m | 7:02PM1.48m | 7:19AM1.35m | 7:46PM1.27m | ||||||||||||||||||
Low Tide | 00:19AM0.41m | 12:29PM0.49m | 00:45AM0.60m | 12:55PM0.69m | 1:15AM0.80m | 1:31PM0.90m | ||||||||||||||||||
 |  |  | | | | |  | | | | | | | | |  |  |  |  | |  | | | |
 | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:42 | — | — | — | — | — | — | — | 5:42 | — | — | — | — | — | — | — | 5:43 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | — | — |
Temp °C | 20 | 20 | 20 | 21 | 21 | 20 | 19 | 19 | 18 | 17 | 19 | 21 | 20 | 20 | 19 | 20 | 20 | 20 | 19 | 20 | 21 | 21 | 21 | 20 |
Feels °C | 16 | 16 | 16 | 18 | 18 | 16 | 15 | 15 | 15 | 14 | 16 | 17 | 15 | 14 | 13 | 16 | 16 | 17 | 17 | 18 | 19 | 19 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | S 9 | S 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | SSE 10 | E 8 | E 8 | E 8 | SSE 9 | SE 9 |
| kJ | 567 | 512 | 450 | 394 | 333 | 327 | 268 | 211 | 168 | 257 | 399 | 127 | 127 | 101 | 101 | 99 | 74 | 68 | 1454 | 34 | 47 | 47 | 604 | 460 |
Swell 2 Height (m) Direction Period (s) | NE 6 | S 16 | S 16 | NE 6 | NE 6 | NE 6 | S 18 | S 17 | S 17 | E 9 | E 9 | SSW 16 | S 16 | NE 8 | — | — | — | SSW 16 | E 8 | S 16 | SSW 16 | SSW 16 | E 8 | E 8 |
| kJ | 25 | 5 | 5 | 15 | 10 | 6 | 6 | 6 | 6 | 164 | 130 | 24 | 5 | 2 | — | — | — | 24 | 49 | 20 | 25 | 25 | 47 | 50 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 12 | SSW 12 | SW 15 | SSW 15 | S 13 | S 16 | SSW 16 | SSW 14 | NE 5 | — | — | — | — | — | — | NE 8 | NE 8 | NE 8 | SSW 16 | SSW 16 |
| kJ | 10 | 25 | 24 | 18 | 30 | 13 | 8 | 21 | 4 | 5 | 25 | 79 | 1 | — | — | — | — | — | — | 3 | 2 | 2 | 25 | 24 |
Wind waves Height (m) Direction Period (s) | S 5 | S 6 | S 7 | S 7 | S 7 | S 6 | S 6 | S 7 | S 7 | S 9 | — | S 9 | S 9 | S 9 | S 9 | SSE 10 | SSE 10 | SSE 10 | — | SSE 10 | SSE 9 | SSE 9 | — | NE 7 |
| kJ | 73 | 255 | 400 | 324 | 176 | 160 | 218 | 219 | 144 | 340 | — | 509 | 671 | 1067 | 2023 | 2405 | 2054 | 1778 | — | 1180 | 903 | 766 | — | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 290 | 290 | 228 | 378 | 407 | 779 | 407 | 230 | 407 | 407 | 407 | 407 | 378 | 1523 | 378 | 344 | 297 | 258 | 258 | 177 | 1061 | 380 | 258 | 228 |
Best forecast wave conditions in KwaZulu-Natal North Coast | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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