Kosi Bay 48 hour detailed Surf Forecast

Lat Long: 26.87° S 32.89° E

Issued: 7 am 20 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 (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 4PM is: 2.0m 12s primary swell from a South-southeast direction and 0.5m 9s secondary swell from a East direction, 0.8m 4s secondary swell from a South direction (forecast issued at 07:00am 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
	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	0	0	0	1	2	3	3	3	3	1	1	0	2	3	3	3	2	1	1	0	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	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	970	1047	1132	1116	1241	1116	1039	1039	933	836	769	694	666	614	614	551	551	503	511	416	416	367	319
Wind (km/h)	WSW	W	S	S	SSE	SSE	SSE	S	WSW	WNW	NNE	ENE	ENE	ENE	ENE	NNE	N	N	NNE	NNE	NE	NE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-on	cross-on	cross-on	on	on	cross-on	cross-off	glassy	cross-off	cross	cross	cross-on	cross	cross-off	cross-off	cross-off	cross-off	cross-off	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				1:29PM0.39m				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	18	18	21	22	22	21	21	20	19	19	22	23	22	22	21	20	20	21	22	23	22	22	22
Feels °C	19	18	19	19	20	20	21	21	19	20	23	22	20	21	21	21	21	22	22	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	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	970	1047	1132	1116	1241	1116	1039	1039	933	836	769	694	666	614	614	551	551	503	511	416	416	367	319
Swell 2 Height (m) Direction Period (s)	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	SSW 16	SSW 17	SSW 16	SSW 16	SSW 15	SSW 15	SSW 14
kJ	46	65	43	42	27	26	26	26	26	25	14	14	15	14	14	13	53	55	53	82	79	74	69
Swell 3 Height (m) Direction Period (s)	S 11	SSW 11	S 17	S 17	NE 6	NE 5	S 10	S 10	S 10	S 10	SSW 13	SSW 13	E 9	S 9	SSW 17	SSW 17	E 9	E 9	E 9	E 9	E 9	E 9	E 9
kJ	21	24	6	5	5	5	17	17	8	8	17	16	14	6	28	54	13	13	6	6	6	6	6
Wind waves Height (m) Direction Period (s)	—	—	—	S 4	S 4	—	—	—	—	—	—	—	—	E 3	E 4	ENE 4	NE 4	NE 4	NE 4	NE 4	NE 4	NE 4	NE 5
kJ	—	—	—	19	31	—	—	—	—	—	—	—	—	5	6	7	7	10	10	16	24	31	56
Nearest Offshore or Glassy	Kosi Bay KZN North	Kosi Bay KZN North	Quissico Inhambane	Mdumbe Eastern Cape - Wild Coast	Guinjata Bay Inhambane	Mapelane KZN North	Cape Vidal KZN North	Cape Vidal 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	Sodwana KZN North	Reunion Durban/KZN South	Guinjata Bay Inhambane	Guinjata Bay Inhambane	Quissico Inhambane
Rating (10 max)	4	4	4	4	4	4	4	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Distance (km)	0	0	290	666	407	177	144	144	0	0	0	380	380	258	229	0	0	0	25	380	407	407	290
Best forecast wave conditions in KwaZulu-Natal North Coast	Alkantstrand	Alkantstrand				Siyayi	Mapelane	Richards Bay (Outside)	Cape Vidal	Richards Bay (Outside)	St Lucia			Umhlanga	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Umhlanga	Sodwana				Umhlanga
Rating (10 max)	4	4				4	4	3	4	3	3			3	3	3	3	3	3				3
Best forecast wave conditions in South Africa	Gerickes Point Garden Route	Gerickes Point 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)	Haga-Haga Eastern Cape - Wild Coast	Gerickes Point Garden Route	Gerickes Point Garden Route	Dungeons Cape Town	The Hoek Cape Town	Gerickes Point Garden Route	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)	Gonubie Reef (The Lefts) Eastern Cape - Wild Coast	Silwerstroom West Coast	Goukamma River Mouth Garden Route
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	3	4	4
Header Global	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	Loisell's New Zealand	Airport Rights New Zealand	Purakaunui Bay New Zealand	Asu Indonesia	Aganoa Beach Samoa	Aganoa Beach Samoa	Benkunqut Indonesia	Chameau Mauritius	Sea Vista South Africa	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Gas Bay Australia	Cobblestones Australia	Cobblestones Australia	Cow Bombie Australia	Cathedral Rock Australia	Viri Inga O Tuki Chile
Rating (10 max)	5	7	6	5	5	5	4	5	4	4	4	4	4	5	5	5	6	6	5	5	5	7	7

Map Icons:
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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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