Kosi Bay 48 hour detailed Surf Forecast

Lat Long: 26.87° S 32.89° E

Issued: 1 pm 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) - 5.5ft (1.7m), 12s period with SSE swell.

The current surf forecast for Kosi Bay at 10PM is: 1.8m 12s primary swell from a South-southeast direction and 0.6m 10s secondary swell from a East direction (forecast issued at 01:00pm July 19). The wind direction is predicted to be glassy and the swell rating is 3.

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)	5.5ft (1.7m)	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 18°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the S by Mon afternoon).
	Sun 19					Monday 20								Tuesday 21
	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)	0	0	0	1	3	4	3	3	0	0	0	1	2	4	3	3	3	1	1	1	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	S 14	S 12	S 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12
Wave Graph
kJ	684	298	799	861	872	933	970	1089	1030	1116	1032	923	808	1039	795	918	822	747	666	723	614
Wind (km/h)	S	SSE	SSE	SE	S	WSW	SW	SW	S	S	SSE	SSE	SSE	S	W	W	NE	ENE	ENE	ENE	NE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-on	cross-on	on	on	glassy	cross-off	cross	cross	cross-on	cross-on	cross-on	on	cross-on	glassy	glassy	cross-off	cross-off	cross	cross	cross	cross
High Tide				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	—	—	—	—	—	—	—	6:33	—	—	—	—	—	—
	—	—	5:14	—	—	—	—	—	—	—	5:14	—	—	—	—	—	—	—	5:15	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	23	24	22	22	20	19	18	18	22	23	22	21	21	21	20	19	22	22	21	21	21
Feels °C	23	23	21	23	22	20	19	18	20	19	19	20	21	22	21	20	22	20	19	19	21
Swell 1 Height (m) Direction Period (s)	S 14	S 12	S 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SSE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12
kJ	684	273	799	861	872	933	970	1089	1030	1116	1032	923	808	1039	795	918	822	747	666	723	614
Swell 2 Height (m) Direction Period (s)	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	SE 5	E 9	E 9	SSW 9	SSW 9	E 9	E 9
kJ	96	298	96	96	71	70	46	65	43	42	27	26	26	26	16	25	14	26	16	14	14
Swell 3 Height (m) Direction Period (s)	NE 5	E 10	NE 6	ENE 6	NE 5	NE 5	S 11	S 11	S 17	NE 6	NE 6	NE 6	S 10	S 10	E 9	SSW 13	SSW 13	E 9	E 9	SSW 12	SSW 17
kJ	17	96	25	20	13	7	21	21	6	5	5	5	17	17	26	18	17	14	14	14	29
Wind waves Height (m) Direction Period (s)	SSW 3	S 3	—	—	—	—	—	—	S 4	S 5	S 5	SSE 5	SSE 5	—	—	—	—	—	—	ENE 3	E 4
kJ	2	6	—	—	—	—	—	—	17	50	61	59	42	—	—	—	—	—	—	6	9
Nearest Offshore or Glassy	Mapelane KZN North	Quissico Inhambane	Reunion Durban/KZN South	Richards Bay (Inside) KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Cape Vidal KZN North	Alkantstrand KZN North	Quissico Inhambane	Addington (South Beach) Durban/KZN South	Alkantstrand KZN North	Alkantstrand 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	Salt Rock KZN North	Sodwana KZN North
Rating (10 max)	4	3	4	3	3	4	4	4	4	3	4	4	4	4	3	3	3	3	3	3	3
Distance (km)	177	290	380	229	0	0	144	228	290	378	228	228	144	0	0	0	0	380	380	337	25
Best forecast wave conditions in KwaZulu-Natal North Coast	Alkantstrand			Richards Bay (Outside)	Umhlanga	Umhlanga	Alkantstrand	Alkantstrand			Alkantstrand	Alkantstrand	Cape Vidal	Cape Vidal	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)			Umhlanga	Umhlanga
Rating (10 max)	4			3	4	4	4	4			4	4	4	4	3	3	3			3	3
Best forecast wave conditions in South Africa	Keurbooms Garden Route	Dungeons Cape Town	Reunion Durban/KZN South	Double Mouth Eastern Cape - Wild Coast	Vleesbaai Overberg	Vleesbaai Overberg	Goukamma River Mouth Garden Route	Haga-Haga Eastern Cape - Wild Coast	Gerickes Point Garden Route	Cintsa East Eastern Cape - Wild Coast	Kromme Rivermouth Eastern Cape (S)	J-Bay Eastern Cape (S)	Kromme Rivermouth Eastern Cape (S)	Kromme Rivermouth Eastern Cape (S)	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Dungeons Cape Town	Gerickes Point Garden Route	Paranoia Overberg	Gerickes Point Garden Route	Gerickes Point Garden Route
Rating (10 max)	4	3	4	4	4	4	4	5	4	4	4	4	4	4	4	4	4	4	4	4	4
Header Global	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	White Rock - The Spit New Zealand	Seconds (White Rock) New Zealand	Last Chance New Zealand	Last Chance New Zealand	Diners Beach New Zealand	Diners Beach New Zealand	Aganoa Beach Samoa	Papatowai New Zealand	Aganoa Beach Samoa	Aganoa Beach Samoa	Aganoa Beach Samoa	Chameau Mauritius	Chameau Mauritius	Cobblestones Australia
Rating (10 max)	7	7	7	7	6	5	5	8	7	5	5	5	5	4	5	4	4	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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