Kosi Bay 48 hour detailed Surf Forecast

Lat Long: 26.87° S 32.89° E

Issued: 7 am 19 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 (19 Jul):

Morning surf: Morning surf (19 Jul, local time) - 3.5ft (1.0m), 15s period with SSE swell.
Afternoon surf: Afternoon surf (19 Jul, local time) - 3.5ft (1.0m), 12s period with S swell.
Evening surf: Evening surf (19 Jul, local time) - 6ft (1.8m), 12s period with SSE swell.

The current surf forecast for Kosi Bay at 12PM is: 1.3m 14s primary swell from a South direction and 0.7m 10s secondary swell from a East direction, 0.5m 3s secondary swell from a South direction (forecast issued at 07:00am July 19). The wind direction is predicted to be cross-onshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (19 Jul)	3.5ft (1.0m)	15s
Afternoon (19 Jul)	3.5ft (1.0m)	12s
Evening (19 Jul)	6ft (1.8m)	12s

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

	Short Range Forecast Mostly dry. Warm (max 24°C on Sun afternoon, min 17°C on Tue morning). Winds decreasing (fresh winds from the S on Mon afternoon, calm by Tue morning).
	Sunday 19							Monday 20								Tuesday 21
	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)	2	1	0	0	0	2	3	4	4	3	1	0	0	0	2	3	2	2	3	1	0	1	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	S 13	SSE 15	S 14	S 12	S 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SE 12	SSE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12
Wave Graph
kJ	273	419	684	298	799	960	969	933	970	1030	1132	1116	1032	1016	948	1039	933	836	822	734	666	655	655
Wind (km/h)	WNW	SSW	S	SSE	SSE	SE	S	WSW	WSW	SW	S	S	S	SSE	S	SW	SW	SW	ESE	E	ENE	ENE	NE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	cross-on	cross-on	cross-on	on	on	cross-on	cross-off	cross-off	cross	cross-on	cross-on	cross-on	cross-on	cross-on	cross	cross	cross	glassy	cross-on	cross-on	cross-on	cross
High Tide		6:43AM1.93m				7:10PM1.97m				7:19AM1.79m				7:48PM1.81m				7:58AM1.64m					8:30PM1.64m
Low Tide				12:52PM0.23m				1:18AM0.43m				1:29PM0.39m				1:58AM0.58m					2:09PM0.56m


	6:35	—	—	—	—	—	—	—	6:35	—	—	—	—	—	—	—	6:33	—	—	—	—	—	—
	—	—	—	—	5:14	—	—	—	—	—	—	—	5:14	—	—	—	—	—	—	—	5:15	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	18	18	23	24	23	22	21	19	18	18	22	23	22	22	20	19	18	17	20	22	21	21	21
Feels °C	18	17	22	23	23	22	22	20	19	19	21	20	19	20	19	18	17	17	21	22	20	20	21
Swell 1 Height (m) Direction Period (s)	S 13	SSE 15	S 14	S 12	S 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SE 12	SSE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12
kJ	273	419	684	273	799	960	969	933	970	1030	1132	1116	1032	1016	948	1039	933	836	822	734	666	655	655
Swell 2 Height (m) Direction Period (s)	E 10	S 12	E 10	SSE 13	E 10	E 10	E 10	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	E 9	E 9	E 9
kJ	120	187	96	298	96	96	71	70	66	65	43	42	27	26	26	26	26	25	14	14	14	14	14
Swell 3 Height (m) Direction Period (s)	NE 5	E 10	NE 5	E 10	NE 6	ENE 6	NE 5	NE 5	S 11	S 11	NE 6	NE 6	NE 6	NE 6	S 10	S 10	S 10	S 10	SSW 13	SSW 12	S 9	S 12	SSW 17
kJ	24	122	17	96	25	20	13	7	21	21	5	5	5	5	17	17	17	8	17	15	14	11	29
Wind waves Height (m) Direction Period (s)	—	—	S 3	S 4	—	—	—	—	—	—	S 3	S 5	S 6	S 6	SSE 5	—	—	—	—	—	—	—	—
kJ	—	—	4	6	—	—	—	—	—	—	7	62	101	62	39	—	—	—	—	—	—	—	—
Nearest Offshore or Glassy	Kosi Bay KZN North	Mapelane KZN North	Mapelane KZN North	Quissico Inhambane	Quissico Inhambane	Mtunzini KZN North	Sodwana KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Cape Vidal KZN North	Alkantstrand KZN North	Ntylonyane (Breezy Point) Eastern Cape - Wild Coast	Addington (South Beach) Durban/KZN South	Alkantstrand KZN North	Cape Vidal KZN North	Cape Vidal KZN North	Cape Vidal KZN North	Cape Vidal KZN North	Kosi Bay KZN North	Reunion Durban/KZN South	Reunion Durban/KZN South	Richards Bay (Inside) KZN North	Sodwana KZN North
Rating (10 max)	2	4	4	3	3	3	4	4	4	4	4	4	3	4	4	4	4	3	3	3	3	2	3
Distance (km)	0	177	177	290	290	258	25	0	0	144	228	705	378	228	144	144	144	144	0	380	380	229	25
Best forecast wave conditions in KwaZulu-Natal North Coast	Umhlanga	Umhlanga	Alkantstrand			Umhlanga	Umhlanga	Umhlanga	Siyayi	Alkantstrand	Alkantstrand			Umhlanga	Alkantstrand	Alkantstrand	Cape Vidal	Richards Bay (Outside)	Richards Bay (Outside)			Richards Bay (Outside)	Richards Bay (Outside)
Rating (10 max)	3	4	4			4	4	4	4	4	4			4	4	4	4	3	3			3	3
Best forecast wave conditions in South Africa	Gerickes Point Garden Route	Jongensfontein Overberg	Loch Ness (Noordhoek) Eastern Cape (S)	Kromme Rivermouth Eastern Cape (S)	Kromme Rivermouth Eastern Cape (S)	Haakgat Cape Town	Queensberry Bay Eastern Cape - Wild Coast	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	J-Bay Eastern Cape (S)	Gerickes Point Garden Route	Kromme Rivermouth Eastern Cape (S)	Jongensfontein Overberg	Kromme Rivermouth Eastern Cape (S)	Gerickes Point Garden Route	Gerickes Point Garden Route	Vleesbaai Overberg	Paranoia Overberg	Koeel Bay Overberg	Gerickes Point Garden Route	Gerickes Point Garden Route
Rating (10 max)	3	4	4	4	4	4	4	4	4	4	4	4	3	4	4	4	4	4	4	4	4	4	4
Header Global	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Otago Peninsula - Allans Beach New Zealand	Otago Peninsula - Allans Beach New Zealand	Tora Point New Zealand	Seconds (White Rock) New Zealand	Ning Nong Point and Reef New Zealand	Last Chance New Zealand	Diners Beach New Zealand	Diners Beach New Zealand	Asu Indonesia	Asu Indonesia	Asu Indonesia	Papatowai New Zealand	Aganoa Beach Samoa	Chameau Mauritius	Cape St Martin South Africa	Cobblestones Australia
Rating (10 max)	7	7	7	7	7	7	6	5	5	6	7	5	5	5	5	4	4	4	5	4	4	4	5

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 (19 Jul):

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