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Kosi Bay Surf Forecast
/ KZN North (23 surf breaks) /
Kosi Bay surfForecast / KZN North / South Africa
12 Day Weather and Surf, issued 7 am Sunday 06 Jul 2025 SAST
Best Forecast Surf Conditions for Kosi Bay this week:
The surf forecast for Kosi Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 06) at 11AM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.8m and 9s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Kosi Bay in the next 12 days are 1.9m 17s and forecast to arrive on Tuesday (Jul 08) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Thursday (Jul 10) at 2AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 6th Jul) | 2.5ft (0.8m) 13s |
| Best Surf | 11AM (Tue 8th Jul) | 5.5ft (1.7m) 16s |
| Most Powerful | 5AM (Tue 8th Jul) | 6ft (1.9m) 17s |
Table - best surf conditions forecast for Kosi Bay over the next 12 days.
Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 13 | 17 | 6 | 7 | 14 | 11 | 16 | 16 | 15 | 15 | 14 | 13 | 13 | 12 | 9 | 9 | 9 | 9 | 7 | 8 | 8 | 9 | 8 | 8 | 10 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 6 | 8 | 14 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 380 | 503 | 391 | 596 | 1778 | 1358 | 1497 | 1119 | 928 | 664 | 563 | 303 | 250 | 200 | 334 | 306 | 227 | 187 | 833 | 921 | 852 | 609 | 406 | 290 | 282 | 307 | 507 | 318 | 331 | 381 | 483 | 509 | 568 | 795 | 2700 | 1563 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | on | cross- on | on | cross- on | cross | on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | on | cross- on | cross- off | cross- off | cross- off |
High Tide / height (m) | 12:50PM 1.43 | 1:19AM 1.57 | 1:49PM 1.53 | 2:10AM 1.67 | 2:35PM 1.64 | 2:52AM 1.78 | 3:14PM 1.76 | 3:29AM 1.88 | 3:51PM 1.87 | 4:04AM 1.97 | 4:25PM 1.97 | 4:38AM 2.03 | 4:59PM 2.04 | 5:11AM 2.05 | 5:34PM 2.08 | 5:45AM 2.04 | 6:09PM 2.09 | 6:20AM 1.99 | 6:47PM 2.05 | 6:58AM 1.90 | 7:27PM 1.97 | 7:40AM 1.78 | 8:15PM 1.85 | |||||||||||||
Low Tide / height (m) | 6:56PM 0.73 | 7:39AM 0.66 | 7:53PM 0.63 | 8:26AM 0.55 | 8:38PM 0.52 | 9:05AM 0.43 | 9:18PM 0.41 | 9:40AM 0.32 | 9:54PM 0.32 | 10:14AM 0.23 | 10:29PM 0.26 | 10:47AM 0.17 | 11:04PM 0.23 | 11:20AM 0.14 | 11:39PM 0.23 | 11:54AM 0.14 | 12:16AM 0.26 | 12:30PM 0.18 | 12:55AM 0.34 | 1:08PM 0.27 | 1:39AM 0.44 | 1:52PM 0.38 | 2:30AM 0.56 | |||||||||||||
Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||||||||||||
| Sunrise | 6:37 | - | - | 6:37 | - | - | 6:37 | - | - | 6:37 | - | - | 6:37 | - | - | 6:37 | - | - | 6:37 | - | - | 6:37 | - | - | 6:35 | - | - | 6:35 | - | - | 6:35 | - | - | 6:35 | - | - |
| Sunset | - | 5:07 | - | - | 5:07 | - | - | 5:08 | - | - | 5:08 | - | - | 5:09 | - | - | 5:09 | - | - | 5:09 | - | - | 5:10 | - | - | 5:10 | - | - | 5:12 | - | - | 5:12 | - | - | 5:13 | - |
 | |  |  | | | | | | | | | | | | | | | | |  |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 27 | 21 | 20 | 19 | 20 | 20 | 20 | 20 | 20 | 22 | 20 | 21 | 22 | 21 | 21 | 24 | 22 | 22 | 22 | 21 | 20 | 21 | 21 | 21 | 23 | 21 | 24 | 27 | 24 | 24 | 23 | 21 | 23 | 25 | 22 |
| Feels °C (?) | 20 | 24 | 19 | 16 | 15 | 16 | 18 | 17 | 17 | 15 | 16 | 16 | 16 | 17 | 18 | 16 | 18 | 19 | 17 | 17 | 17 | 20 | 21 | 19 | 18 | 19 | 19 | 20 | 23 | 21 | 22 | 22 | 20 | 23 | 22 | 19 |
Short Range Forecast: Some drizzle, heaviest during Mon morning. Warm (max 27°C on Sun afternoon, min 17°C on Sun morning). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Fri afternoon, min 16°C on Fri morning). Mainly fresh winds. | Days 6-9 Weather Summary Light rain (total 2mm), mostly falling on Sat night. Warm (max 23°C on Mon afternoon, min 18°C on Mon morning). Winds decreasing (fresh winds from the S on Sat morning, light winds from the S by Sun morning). | Long Range Forecast: Mostly dry. Warm (max 27°C on Tue afternoon, min 18°C on Tue morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kosi Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Kosi Bay Surf forecast
The above surf forecast table for Kosi Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Kosi Bay can be found by selecting the local surf guide option on the grey menu. Our Kosi Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kosi Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kosi Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kosi Bay is 108 km (67 miles) from the city of Maputo. If you plan a holiday in KwaZulu-Natal North Coast, look for hotels and other accommodation in Maputo. Maputo has rooms for a wide range of budgets as well as car hire and transport links.
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