Kosi Bay Surf Forecast

/ KZN North (23 surf breaks) /

South Africa (273 surf breaks) / Lat Long: (26.87° S 32.89° E)

Surf Forecasts:

Kosi Bay surfForecast / KZN North / South Africa

48hr Weather and Surf, issued 1 am Tuesday 16 Sep 2025 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 22.9° C
(Which is slightly warmer than usual)

How big are the waves at Kosi Bay today?

The current surf forecast for Kosi Bay at 6AM is: 0.6m 13s primary swell from a South direction and 0.6m 8s secondary swell from a East direction (forecast issued at 01:00am September 16). An open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (16 Sep)	1.5ft (0.4m)	12s
Afternoon (16 Sep)	2.5ft (0.8m)	12s
Evening (16 Sep)	7.5ft (2.3m)	6s

Table - waves today at Kosi Bay. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

		Tuesday 16								Wednesday 17								Thursday 18
	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	11 AM	2 PM	5 PM	8 PM
Rating (10 max)	0	0	0	0	1	0	0	0	0	0	0	2	1	1	0	0	2	3	3	3	1	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	S	S	S	SSW	S	SSE	SSE	SSE	SSE	S	S	S	S	S	S	SSE	S	S	S	S	S	S	S
Period(s) (?)	14	13	13	13	12	12	5	6	7	7	17	14	13	12	12	12	12	12	12	12	12	17	13	17
Wave Graph (?)
Energy (?)	232	191	168	161	118	253	239	426	603	854	2096	3180	2047	1393	1022	970	924	829	848	826	843	797	811	904
Wind (km/h)	N	N	NNW	NNW	NNW	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SE	E	E	ENE	NNE	NNW	NNW	NNE	NE	ENE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	off	off	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	on	on	cross- on	cross- on	cross	cross- off	cross- off	cross- off	cross- off	cross	cross	cross
High Tide / height (m)	9:45PM 1.29					11:56AM 1.32				12:57AM 1.39				1:34PM 1.54				1:55AM 1.61					2:16PM 1.78
Low Tide / height (m)			4:42AM 0.93					6:30PM 0.88				7:11AM 0.76				7:46PM 0.66					8:01AM 0.54

		Tuesday 16								Wednesday 17								Thursday 18
Sunrise	-	-	-	5:45	-	-	-	-	-	-	-	5:43	-	-	-	-	-	-	-	5:43	-	-	-	-
Sunset	-	-	-	-	-	-	5:40	-	-	-	-	-	-	-	5:42	-	-	-	-	-	-	-	5:42	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	23	24	25	28	34	24	22	21	21	20	20	20	20	20	20	21	21	20	19	20	24	25	23	22
Feels °C (?)	21	21	20	22	29	19	16	15	15	15	16	18	18	18	17	19	20	19	19	20	22	22	22	22

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for KZN North

Wind Update Offshore wind has become cross-off at Kosi Bay (light winds from the N at Maputo/Lourenço Marques Airport 110 km from Kosi Bay). A 1.0m groundswell from the S
42 minutes ago Kosi Bay

Expand

View all

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.