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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 7 am Sunday 31 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
25.1° C
(Which is 1.4°C warmer than normal for this time of year)How big are the waves at Kosi Bay today (31 May):
- Morning surf: Morning surf (31 May, local time) - 2.5ft (0.7m), 9s period with S swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 2.5ft (0.8m), 9s period with S swell.
- Evening surf: Evening surf (31 May, local time) - 2.5ft (0.8m), 8s period with SSE swell.
The current surf forecast for Kosi Bay at 1PM is: 0.8m 9s primary swell from a South direction and 0.5m 9s secondary swell from a East direction, 0.2m 4s secondary swell from a East-southeast direction (forecast issued at 07:00am May 31). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 2.5ft (0.7m) | 9s |
| Afternoon (31 May) | 2.5ft (0.8m) | 9s |
| Evening (31 May) | 2.5ft (0.8m) | 8s |
Table - waves today at Kosi Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sun morning. Warm (max 24°C on Tue afternoon, min 19°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 7 | S 9 | S 9 | S 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | E 9 | SSE 8 | E 9 | SSE 7 | E 8 | E 8 | E 9 | ESE 8 | ESE 9 | ESE 8 | |
38 | 81 | 79 | 99 | 94 | 90 | 68 | 67 | 67 | 73 | 76 | 75 | 57 | 57 | 56 | 39 | 38 | 37 | 36 | 36 | 38 | 23 | 25 | 22 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | on | on | on | on | glassy | cross-off | glassy | glassy | cross | cross | cross | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 3:48PM1.91m | 4:01AM1.96m | 4:20PM1.91m | 4:33AM1.94m | 4:52PM1.89m | |||||||||||||||||||
Low Tide | 9:40AM0.26m | 9:52PM0.29m | 10:11AM0.25m | 10:24PM0.30m | 10:43AM0.27m | 10:57PM0.33m | ||||||||||||||||||
 |  |  | |  |  | | | | | | | | | | | | | | | | | | | |
 | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | 6:30 |
 | — | — | — | — | 5:02 | — | — | — | — | — | — | — | 5:02 | — | — | — | — | — | — | — | 5:01 | — | — | 5:01 |
— | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 20 | 22 | 22 | 22 | 22 | 21 | 20 | 19 | 19 | 21 | 22 | 22 | 22 | 21 | 20 | 20 | 19 | 22 | 24 | 22 | 22 | 22 | 22 |
20 | 20 | 22 | 21 | 21 | 21 | 21 | 20 | 19 | 20 | 22 | 21 | 21 | 21 | 20 | 19 | 19 | 18 | 20 | 22 | 21 | 21 | 22 | 23 | |
Swell 1 Height (m) Direction Period (s) | S 7 | S 9 | S 9 | S 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SE 7 | E 8 | E 9 | ESE 8 | ESE 9 | ESE 8 |
 kJ | 38 | 81 | 79 | 99 | 94 | 90 | 68 | 67 | 67 | 73 | 76 | 75 | 56 | 52 | 37 | 37 | 37 | 37 | 26 | 36 | 38 | 23 | 25 | 22 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 9 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | SE 7 | SSE 7 | SSE 7 | SE 7 | SE 7 |
| kJ | 29 | 30 | 37 | 39 | 36 | 35 | 35 | 36 | 54 | 56 | 57 | 57 | 57 | 57 | 56 | 39 | 38 | 36 | 36 | 25 | 20 | 20 | 13 | 13 |
Swell 3 Height (m) Direction Period (s) | S 9 | SSW 13 | SSW 13 | S 13 | S 14 | S 12 | SSW 11 | S 11 | S 11 | S 11 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | SSW 16 | SSW 16 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
| kJ | 7 | 18 | 16 | 14 | 4 | 12 | 13 | 10 | 9 | 10 | 17 | 15 | 14 | 14 | 13 | 26 | 25 | 12 | 12 | 12 | 10 | 10 | 10 | 9 |
Wind waves Height (m) Direction Period (s) | — | — | — | ESE 4 | — | — | — | — | — | — | — | — | — | — | — | NNE 2 | NNE 2 | N 2 | N 3 | N 4 | NNE 4 | NNE 4 | NNE 4 | NNE 4 |
| kJ | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 3 | 9 | 11 | 10 | 10 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 144 | 177 | 173 | 380 | 380 | 258 | 25 | 0 | 0 | 0 | 0 | 349 | 380 | 25 | 0 | 0 | 0 | 0 | 258 | 290 | 337 | 25 | 3 | 3 |
Best forecast wave conditions in KwaZulu-Natal North Coast | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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