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Kosi Bay Surf Forecast
/ KZN North (23 surf breaks) /
Surf Forecasts:
Kosi Bay surfForecast / KZN North / South Africa
48hr Weather and Surf, issued 1 pm Tuesday 12 May 2026 SASTForecast update in hr min s Forecast update imminent
Kosi Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kosi Bay sea temperature is
25.9° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Kosi Bay today?
The current surf forecast for Kosi Bay at 7PM is: 0.3m 18s primary swell from a South-southwest direction (forecast issued at 01:00pm May 12). An open ocean swell of 0.9m 5s is not directed at the surf break, a second open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 2.5ft (0.7m) | 12s |
| Afternoon (12 May) | 1.5ft (0.4m) | 9s |
| Evening (12 May) | 1ft (0.3m) | 18s |
Table - waves today at Kosi Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 6mm), mostly falling on Wed night. Warm (max 33°C on Tue afternoon, min 21°C on Thu night). Winds decreasing (fresh winds from the SSE on Wed night, calm by Fri morning). | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 10 | S 9 | SSE 12 | SSW 18 | S 18 | SSW 18 | SSW 14 | SSW 14 | S 13 | S 13 | S 13 | S 12 | SSW 14 | SSW 14 | SSW 14 | S 16 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | |
45 | 25 | 14 | 66 | 162 | 109 | 67 | 64 | 90 | 85 | 81 | 113 | 280 | 317 | 331 | 1135 | 1708 | 857 | 762 | 649 | 469 | 387 | 314 | 292 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | on | on | cross-on | on | on | on | on | on | on | cross-on | glassy | glassy | cross-off | glassy | |
High Tide | 12:33PM1.57m | 00:59AM1.81m | 1:21PM1.73m | 1:42AM1.99m | 2:03PM1.89m | 2:23AM2.13m | ||||||||||||||||||
Low Tide | 6:36PM0.57m | 7:16AM0.49m | 7:23PM0.40m | 7:57AM0.31m | 8:05PM0.24m | |||||||||||||||||||
 | | |  | | | | | | | | | | |  |  |  | | | | | | | | |
 | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:20 | — |
 | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:08 | — | — | — | — | 5:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | 1 | — | 1 | — | |
Temp °C | 29 | 33 | 31 | 28 | 26 | 23 | 23 | 23 | 28 | 29 | 25 | 24 | 24 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 |
24 | 29 | 27 | 23 | 21 | 19 | 20 | 20 | 26 | 28 | 23 | 22 | 21 | 20 | 20 | 20 | 21 | 22 | 22 | 22 | 24 | 25 | 23 | 24 | |
Swell 1 Height (m) Direction Period (s) | NE 6 | NE 6 | S 8 | NNE 5 | NNE 5 | NNE 5 | NE 5 | SSW 14 | S 13 | S 13 | S 13 | S 12 | SSW 14 | SSW 14 | SSW 14 | S 16 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | E 6 | E 6 |
 kJ | 22 | 12 | 13 | 39 | 22 | 17 | 6 | 64 | 90 | 85 | 81 | 113 | 280 | 317 | 331 | 1135 | 1708 | 857 | 762 | 649 | 469 | 387 | 91 | 92 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 9 | SSE 12 | SSW 18 | S 18 | SSW 14 | SSW 14 | SSW 18 | SSW 18 | SSW 16 | S 17 | NNE 4 | NE 6 | NE 6 | S 17 | NE 6 | NE 6 | E 6 | E 7 | E 7 | SE 6 | E 6 | S 12 | S 11 |
| kJ | 45 | 25 | 14 | 66 | 162 | 69 | 67 | 62 | 61 | 52 | 49 | 2 | 10 | 6 | 210 | 1 | 1 | 59 | 69 | 15 | 20 | 89 | 314 | 292 |
Swell 3 Height (m) Direction Period (s) | SSE 12 | SSE 12 | E 9 | S 8 | S 7 | SSW 18 | SSW 18 | NE 6 | E 8 | E 8 | E 8 | S 16 | E 8 | E 8 | E 6 | — | — | S 16 | S 16 | — | E 7 | ENE 7 | SSW 16 | SSW 16 |
| kJ | 14 | 14 | 6 | 10 | 10 | 109 | 64 | 5 | 5 | 5 | 5 | 47 | 11 | 5 | 13 | — | — | 195 | 46 | — | 15 | 16 | 27 | 26 |
Wind waves Height (m) Direction Period (s) | WNW 4 | N 3 | NNE 5 | NW 3 | WNW 3 | W 3 | SW 3 | SSW 4 | — | — | NNE 3 | SE 3 | SE 4 | SSE 5 | SSE 6 | SSE 7 | — | — | — | E 6 | E 6 | — | — | — |
| kJ | 5 | 7 | 37 | 3 | 3 | 5 | 6 | 5 | — | — | 3 | 3 | 42 | 149 | 213 | 268 | — | — | — | 35 | 46 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 290 | 0 | 144 | 25 | 0 | 0 | 0 | 290 | 290 | 290 | 349 | 344 | 177 | 258 | 229 | 229 | 258 | 229 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in KwaZulu-Natal North Coast | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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