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 Sunday 19 Oct 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 23.6° C
(Which is slightly warmer than usual)

How big are the waves at Kosi Bay today?

The current surf forecast for Kosi Bay at 8AM is: 2.5m 8s primary swell from a South direction and 0.6m 6s secondary swell from a East-northeast direction, 0.4m 14s secondary swell from a South-southeast direction (forecast issued at 01:00am October 19). The wind direction is predicted to be cross-onshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (19 Oct)	8ft (2.5m)	8s
Afternoon (19 Oct)	8ft (2.5m)	8s
Evening (19 Oct)	7.5ft (2.3m)	7s

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

		Sunday 19								Monday 20								Tuesday 21
	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	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	S	S	S	S	S	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SE	SE	SE	SE	SE	SE	SE	SE	ESE
Period(s) (?)	11	6	8	8	8	8	7	7	7	7	7	7	8	8	8	8	8	8	8	8	8	8	8	8
Wave Graph (?)
kJ (?)	338	282	750	973	1031	857	710	574	444	394	432	456	439	362	314	335	378	338	261	232	226	198	221	198
Wind (km/h)	S	SSW	S	S	S	S	S	SSE	S	S	S	SSE	SSE	S	SSE	SSE	S	SSE	SSE	SSE	SE	ESE	ESE	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	on	cross- on	cross- on	on	cross- on	on	on	cross- on	on	cross- on
High Tide / height (m)			2:33AM 1.91				2:47PM 2.08				2:59AM 2.01				3:12PM 2.16				3:24AM 2.08				3:36PM 2.20
Low Tide / height (m)	8:29PM 0.33				8:34AM 0.25				8:55PM 0.21				9:00AM 0.16				9:19PM 0.13				9:26AM 0.10

		Sunday 19								Monday 20								Tuesday 21
Sunrise	-	-	-	5:09	-	-	-	-	-	-	-	5:07	-	-	-	-	-	-	-	5:07	-	-	-	-
Sunset	-	-	-	-	-	-	5:57	-	-	-	-	-	-	-	5:58	-	-	-	-	-	-	-	5:58	-

Rain (mm)	1	1	-	-	-	-	-	-	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	22	20	20	21	22	22	21	21	21	19	20	20	21	21	20	20	19	19	19	20	21	21	20	20
Feels °C (?)	19	15	16	17	17	17	15	16	18	16	15	15	16	17	17	17	16	17	17	17	19	19	17	17

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 Continuing clean conditions at Kosi Bay (light winds from the SW at Mbazwana Airfield 73 km from Kosi Bay). 2.6m 7s swell from the S with a 0.6m 6s windswell from the ENE. 2 swells combining so expect closeout sets.
1 hour 50 minutes ago Kosi Bay

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