Kosi Bay 48 hour detailed Surf Forecast

Lat Long: 26.87° S 32.89° E

Issued: 1 am 21 Jul 2026 (local time)

Forecast update in hr min

Today's Kosi Bay sea temperature is

23.8° 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 (21 Jul):

Morning surf: Morning surf (21 Jul, local time) - 5.5ft (1.7m), 12s period with SE swell.
Afternoon surf: Afternoon surf (21 Jul, local time) - 5ft (1.6m), 12s period with SE swell.
Evening surf: Evening surf (21 Jul, local time) - 5ft (1.5m), 12s period with SE swell.

The current surf forecast for Kosi Bay at 8AM is: 1.7m 12s primary swell from a Southeast direction and 0.4m 9s secondary swell from a East direction (forecast issued at 01:00am July 21). The wind direction is predicted to be glassy and the swell rating is 3.

Time (SAST) & Date	Wave Height	Wave Period
Morning (21 Jul)	5.5ft (1.7m)	12s
Afternoon (21 Jul)	5ft (1.6m)	12s
Evening (21 Jul)	5ft (1.5m)	12s

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

	Short Range Forecast Mostly dry. Warm (max 24°C on Thu afternoon, min 19°C on Tue morning). Wind will be generally light.
	Tuesday 21								Wednesday 22								Thursday 23
	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)	3	3	3	2	0	1	0	2	3	3	3	3	1	0	2	1	1	1	1	0	0	0	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	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	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	1039	933	836	822	694	666	614	614	551	551	503	511	416	416	416	361	314	272	272	232	197	197	193	134
Wind (km/h)	SSW	SW	WSW	NE	ENE	ENE	ENE	ENE	NNE	NNW	NNW	NNE	NE	NE	NNE	NNE	N	N	N	N	NNE	NE	NNE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-on	cross-off	glassy	cross	cross-on	cross	cross-on	cross	cross-off	cross-off	off	cross-off	cross	cross	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross	cross-off	cross-off
High Tide			7:58AM1.64m					8:30PM1.64m				8:45AM1.48m				9:27PM1.48m				10:00AM1.35m
Low Tide	1:58AM0.58m					2:09PM0.56m				2:44AM0.72m				3:00PM0.73m				3:51AM0.84m				4:22PM0.85m


	—	6:33	—	—	—	—	—	—	—	6:33	—	—	—	—	—	—	—	6:33	—	—	—	—	—	—
	—	—	—	—	—	5:15	—	—	—	—	—	—	—	5:15	—	—	—	—	—	—	—	5:15	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	20	19	19	22	23	22	22	22	21	20	20	22	23	22	21	21	21	20	19	22	24	22	22	21
Feels °C	21	19	20	23	21	20	20	22	22	21	21	22	21	20	20	20	21	20	17	18	21	20	21	21
Swell 1 Height (m) Direction Period (s)	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	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12	SE 12
kJ	1039	933	836	822	694	666	614	614	551	551	503	511	416	416	416	361	314	272	272	232	197	197	193	134
Swell 2 Height (m) Direction Period (s)	E 9	E 9	E 9	E 9	E 9	SSW 9	E 9	E 9	E 9	ENE 4	SSW 17	SSW 16	SSW 16	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 13	SSW 13	SSW 16	SSW 15	SSW 15	SSW 15
kJ	26	26	25	14	14	15	14	14	13	5	54	53	82	78	73	69	63	36	35	18	48	46	43	71
Swell 3 Height (m) Direction Period (s)	S 10	S 10	S 10	SSW 13	SSW 13	E 9	S 9	SSW 17	SSW 17	SSW 16	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 8	E 8	E 8	E 8	E 8
kJ	17	8	8	17	16	14	6	28	54	53	13	6	6	6	6	6	6	6	6	6	6	5	6	6
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	E 3	E 4	ENE 4	ENE 9	NE 4	NE 4	NE 4	NE 4	NE 4	NE 5	NE 5	NNE 5	NNE 5	NNE 5	NNE 5	NNE 6	NE 6	NNE 6
kJ	—	—	—	—	—	—	5	6	7	15	3	4	17	29	39	41	55	74	77	85	117	129	123	105
Nearest Offshore or Glassy	Sodwana KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Sodwana KZN North	Guinjata Bay Inhambane	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	Reunion Durban/KZN South	Guinjata Bay Inhambane	Guinjata Bay Inhambane	Quissico Inhambane	Quissico Inhambane	Mtunzini KZN North	Mtunzini KZN North	Richards Bay (Inside) KZN North	Alkantstrand KZN North	Alkantstrand KZN North	St Lucia KZN North	Sodwana KZN North
Rating (10 max)	4	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	2	2	2	2	3	3	2
Distance (km)	25	0	0	25	407	380	258	229	0	0	0	0	380	407	407	290	290	258	258	229	228	228	173	25
Best forecast wave conditions in KwaZulu-Natal North Coast	Mapelane	Mapelane	Richards Bay (Outside)	Sodwana			Umhlanga	Richards Bay (Outside)	Richards Bay (Outside)	Umhlanga	Umhlanga	Sodwana				Umhlanga	Umhlanga	Umhlanga	Siyayi	Richards Bay (Outside)	Senoritas	Alkantstrand	St Lucia	Mtunzini
Rating (10 max)	4	4	3	3			3	3	3	3	3	3				3	3	3	3	2	2	3	3	3
Best forecast wave conditions in South Africa	Haga-Haga Eastern Cape - Wild Coast	Gerickes Point Garden Route	Gerickes Point Garden Route	Dungeons Cape Town	Gerickes Point Garden Route	Paranoia Overberg	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Vredenberg Point West Coast	Super Tubes Eastern Cape (S)	Haga-Haga Eastern Cape - Wild Coast	Dungeons Cape Town	Vleesbaai Overberg	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Vleesbaai Overberg	Barbel Point Eastern Cape - Wild Coast	Barbel Point Eastern Cape - Wild Coast	Dungeons Cape Town	Dungeons Cape Town
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	3	3	4	4	4	3	3	4	5	6
Header Global	Purakaunui Bay New Zealand	Purakaunui Bay New Zealand	Asu Indonesia	Asu Indonesia	Aganoa Beach Samoa	Chameau Mauritius	Sea Vista South Africa	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Gas Bay Australia	Injidup Carpark Australia	Gas Bay Australia	Viri Inga O Tuki Chile	Cathedral Rock Australia	Viri Inga O Tuki Chile	Point Roadnight Australia	Boulders Samoa	Cobblestones Australia	Brak River South Africa	Benkunqut Indonesia	Barbel Point South Africa	Dolphin Point South Africa	Dolphin Point South Africa
Rating (10 max)	5	5	4	4	4	4	5	5	5	6	6	5	5	8	9	6	6	4	4	4	4	4	5	9

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 (21 Jul):

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