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Surf Forecasts:

Kosi Bay surfForecast / KZN North / South Africa

information circle12 Day Weather and Surf, issued 7 pm Wednesday 07 Jan 2026 SAST
Forecast 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
26.3° C
 (Which is normal for this time of year)

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 Thursday (Jan 08) at 11PM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 1.0m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kosi Bay in the next 12 days are 3.5m 10s and forecast to arrive on Wednesday (Jan 14) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Jan 09) at 2AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 8th Jan)2.5ft (0.8m) 12s
Best Surf11PM (Thu 8th Jan)2.5ft (0.8m) 12s
Most Powerful 8PM (Wed 14th Jan)11ft (3.5m) 10s

Table - best surf conditions forecast for Kosi Bay over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 4mm), mostly falling on Wed night. Warm (max 27°C on Fri morning, min 23°C on Wed night). Winds decreasing (fresh winds from the S on Wed night, light winds from the ESE by Thu afternoon).

Days 3-6 Weather Summary Moderate rain (total 13mm), heaviest on Sat night. Warm (max 28°C on Mon afternoon, min 23°C on Mon night). Mainly fresh winds.

Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wed
14
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
2
1
1
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.6
SSE
1.8
S
1.2
S
0.8
S
0.8
S
0.8
S
1.4
S
0.5
S
1.7
SSE
1.7
ESE
1.4
SE
1.4
ESE
1.3
ESE
1.3
ESE
1.2
ESE
1.3
ESE
2
E
1.9
ESE
2.2
E
2.5
E
3
E
Period(s) (?)7161412111110146776888889999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)23215655571901571493869718725618914520721716821757657273211851708
Wind
(km/h)
25
SSE
15
SE
15
ENE
20
NNE
10
ENE
20
SSE
30
SSW
30
S
30
SSE
20
SSE
25
SSE
25
SSE
10
S
20
SSE
20
SSE
15
SSW
25
S
30
S
25
SW
30
SSW
30
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		oncross-
on		cross-
off		crossoncross-
on		cross-
on		ononononcross-
on		oncross-
on		crosscross-
on		cross-
on		crosscross-
on		cross-
on
High Tide
/ height (m)
6:47AM
1.99
6:55PM
1.84
7:24AM
1.86
7:31PM
1.70
8:03AM
1.71
8:12PM
1.54
8:50AM
1.56
9:08PM
1.40
10:01AM
1.43
10:46PM
1.30
11:52AM
1.39
12:46AM
1.34
1:22PM
1.47
Low Tide
/ height (m)
12:30AM
0.20
12:54PM
0.40
1:06AM
0.33
1:32PM
0.54
1:43AM
0.49
2:14PM
0.68
2:26AM
0.65
3:08PM
0.80
3:26AM
0.80
4:34PM
0.89
5:07AM
0.87
6:29PM
0.86
6:55AM
0.82
7:44PM
0.74
Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wed
14
Sunrise-5:01--5:03--5:03--5:03--5:05--5:05--5:07-
Sunset--6:45--6:46--6:46--6:46--6:46--6:46--6:46
rain showers
part cloud
clear
clear
clear
clear
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
thunderstorm
clear
Rain (mm)
2-------272121-----1-
Temp. °C252526252727242626252626252728252828262728
Feels °C (?)232628272928242425252626272829272827252526
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Latest Updates

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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.

View detailed surf forecast for Kosi Bay at:
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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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