Kosi Bay 48 hour detailed Surf Forecast

Lat Long: 26.87° S 32.89° E

Issued: 1 am 20 Jul 2026 (local time)

Forecast update in hr min

Today's Kosi Bay sea temperature is

23.7° C

Kosi Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Surf Forecasts:

How big are the waves at Kosi Bay today (20 Jul):

Morning surf: Morning surf (20 Jul, local time) - 6ft (1.9m), 12s period with SSE swell.
Afternoon surf: Afternoon surf (20 Jul, local time) - 6ft (1.9m), 12s period with SSE swell.
Evening surf: Evening surf (20 Jul, local time) - 6.5ft (2.0m), 12s period with SSE swell.

The current surf forecast for Kosi Bay at 10AM is: 2.0m 12s primary swell from a South-southeast direction and 0.5m 10s secondary swell from a East direction (forecast issued at 01:00am July 20). The wind direction is predicted to be cross-onshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (20 Jul)	6ft (1.9m)	12s
Afternoon (20 Jul)	6ft (1.9m)	12s
Evening (20 Jul)	6.5ft (2.0m)	12s

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

	Short Range Forecast Mostly dry. Warm (max 23°C on Tue afternoon, min 18°C on Mon morning). Wind will be generally light.
	Monday 20								Tuesday 21								Wednesday 22
	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	11 PM
Rating (10 max)	4	4	4	0	0	0	2	3	3	3	3	3	0	0	0	1	3	3	3	3	1	1	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SE 12	SE 12	SE 12	SSE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12
Wave Graph
kJ	933	970	1047	1132	1116	1032	1173	1039	948	933	836	769	694	666	666	666	551	551	555	511	465	416	409	361
Wind (km/h)	W	W	W	S	S	SSE	SSE	SE	SE	NW	NW	NNE	ENE	ENE	ENE	ENE	NNE	NW	NNE	NNE	NE	NE	NE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-off	cross-on	cross-on	on	on	on	glassy	glassy	off	cross-off	cross-on	cross-on	cross-on	cross-on	glassy	glassy	glassy	cross-off	cross	cross	cross	cross-off
High Tide			7:19AM1.79m				7:48PM1.81m				7:58AM1.64m					8:30PM1.64m				8:45AM1.48m				9:27PM1.48m
Low Tide	1:18AM0.43m				1:29PM0.39m				1:58AM0.58m					2:09PM0.56m				2:44AM0.72m				3:00PM0.73m


	—	6:35	—	—	—	—	—	—	—	6:33	—	—	—	—	—	—	—	6:33	—	—	—	—	—	—
	—	—	—	—	—	5:14	—	—	—	—	—	—	—	5:15	—	—	—	—	—	—	—	5:15	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	19	18	18	21	22	22	22	21	21	20	19	22	23	22	22	21	21	21	21	22	23	22	22	22
Feels °C	20	19	18	19	19	20	22	21	23	22	20	22	22	20	21	21	23	23	23	23	21	21	21	22
Swell 1 Height (m) Direction Period (s)	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SE 12	SE 12	SE 12	SSE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12
kJ	933	970	1047	1132	1116	1032	1173	1039	948	933	836	769	694	666	666	666	551	551	555	511	465	416	409	361
Swell 2 Height (m) Direction Period (s)	E 10	E 10	E 10	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	SSW 9	E 9	E 9	E 9	ENE 4	ENE 9	SSW 16	SSW 16	SSW 16	SSW 15	SSW 14
kJ	70	46	65	43	42	27	26	26	26	26	25	14	14	16	14	14	13	4	15	53	83	81	74	69
Swell 3 Height (m) Direction Period (s)	NE 5	S 11	SSW 11	S 17	S 17	NE 6	NE 6	S 10	S 10	S 10	S 10	S 13	SSW 13	E 9	S 9	SSW 17	SSW 17	SSW 16	SSW 17	ENE 9	E 9	E 9	E 9	E 9
kJ	7	21	24	6	5	5	5	17	17	8	8	14	16	14	14	28	54	53	54	15	6	6	6	6
Wind waves Height (m) Direction Period (s)	—	—	—	—	S 4	SSE 4	—	—	—	—	—	—	—	—	—	E 3	E 4	ENE 9	—	—	NE 3	NE 4	NE 4	NE 4
kJ	—	—	—	—	19	32	—	—	—	—	—	—	—	—	—	5	6	15	—	—	3	10	18	36
Nearest Offshore or Glassy	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Quissico Inhambane	Lwandile Eastern Cape - Wild Coast	Guinjata Bay Inhambane	Mapelane KZN North	Cape Vidal KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Reunion Durban/KZN South	Reunion Durban/KZN South	Mtunzini KZN North	Richards Bay (Inside) KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Guinjata Bay Inhambane	Guinjata Bay Inhambane	Guinjata Bay Inhambane	Salt Rock KZN North
Rating (10 max)	4	4	4	4	4	4	4	4	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	2
Distance (km)	0	0	0	290	661	407	177	144	0	0	0	0	380	380	258	229	0	0	0	0	407	407	407	337
Best forecast wave conditions in KwaZulu-Natal North Coast	Umhlanga	Alkantstrand	Alkantstrand				Siyayi	Cape Vidal	Richards Bay (Outside)	Cape Vidal	Richards Bay (Outside)	Richards Bay (Outside)			Umhlanga	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Umhlanga	Sodwana				Thompsons Bay
Rating (10 max)	4	4	4				4	4	3	4	3	3			3	3	3	3	3	3				2
Best forecast wave conditions in South Africa	Vleesbaai Overberg	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Super Tubes Eastern Cape (S)	Hullets Reef Eastern Cape (S)	Haga-Haga Eastern Cape - Wild Coast	J-Bay Eastern Cape (S)	Vleesbaai Overberg	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Dungeons Cape Town	Paranoia Overberg	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Kamer Van Cape Town	Dolphin Point Overberg	Mtati Eastern Cape (S)	Vleesbaai Overberg	Vleesbaai Overberg
Rating (10 max)	4	4	4	4	4	4	4	4	3	4	4	4	4	4	4	4	4	4	4	4	4	4	3	4
Header Global	Otago Peninsula - Allans Beach New Zealand	Otago Peninsula - Allans Beach New Zealand	Ning Nong Point and Reef New Zealand	Ning Nong Point and Reef New Zealand	Last Chance New Zealand	Last Chance New Zealand	Seconds (White Rock) New Zealand	Diners Beach New Zealand	Purakaunui Bay New Zealand	Purakaunui Bay New Zealand	Aganoa Beach Samoa	Aganoa Beach Samoa	Jongensfontein South Africa	Bruces Beauties South Africa	Sea Vista South Africa	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cow Bombie Australia	Hanga Poukura Chile	Hanga Poukura Chile	Cathedral Rock Australia
Rating (10 max)	5	5	7	6	5	5	5	5	5	5	4	4	5	5	5	5	6	5	6	6	5	6	7	8

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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Kosi Bay 48 hour detailed Surf Forecast

How big are the waves at Kosi Bay today (20 Jul):

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