Kosi Bay 48 hour detailed Surf Forecast

Lat Long: 26.87° S 32.89° E

Issued: 1 am 13 Jul 2026 (local time)

Forecast update in hr min

Today's Kosi Bay sea temperature is

23.6° 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 (13 Jul):

Morning surf: Morning surf (13 Jul, local time) - 3.5ft (1.1m), 7s period with SE swell.
Afternoon surf: Afternoon surf (13 Jul, local time) - 4.5ft (1.4m), 8s period with SE swell.
Evening surf: Evening surf (13 Jul, local time) - 4.5ft (1.3m), 8s period with SE swell.

The current surf forecast for Kosi Bay at 6AM is: 0.7m 11s primary swell from a South direction and 1.0m 7s secondary swell from a Southeast direction (forecast issued at 01:00am July 13). The wind direction is predicted to be cross-onshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (13 Jul)	3.5ft (1.1m)	7s
Afternoon (13 Jul)	4.5ft (1.4m)	8s
Evening (13 Jul)	4.5ft (1.3m)	8s

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

	Short Range Forecast Mostly dry. Warm (max 22°C on Wed afternoon, min 17°C on Mon morning). Wind will be generally light.
	Monday 13								Tuesday 14								Wednesday 15
	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)	0	0	0	0	0	0	0	1	1	2	3	3	1	1	2	2	3	3	3	3	2	2	2	3
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	S 11	S 11	SE 7	SSE 8	SE 8	SE 8	SE 8	SE 8	SE 8	SE 8	SE 9	SE 9	SE 9	ESE 9	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10
Wave Graph
kJ	209	157	91	178	248	229	227	229	186	226	542	612	639	617	718	697	778	731	746	717	650	650	650	561
Wind (km/h)	SSW	SSW	SSW	SSE	SE	SE	ESE	SE	S	WSW	WSW	SE	E	E	ENE	NE	NE	WNW	WNW	NNE	ENE	NE	ENE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-on	cross-on	cross-on	cross-on	on	on	on	on	cross-on	cross-off	cross-off	glassy	cross-on	cross-on	cross	cross	glassy	off	off	glassy	cross	cross	cross	cross-off
High Tide		2:42AM1.92m				3:08PM1.93m				3:30AM2.03m				3:54PM2.08m				4:13AM2.11m				4:37PM2.18m
Low Tide				8:54AM0.30m				9:15PM0.24m				9:40AM0.16m				10:02PM0.14m				10:22AM0.07m				10:44PM0.10m


	—	6:37	—	—	—	—	—	—	—	6:35	—	—	—	—	—	—	—	6:35	—	—	—	—	—	—
	—	—	—	—	—	5:10	—	—	—	—	—	—	—	5:10	—	—	—	—	—	—	—	5:12	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	18	18	17	20	21	20	20	20	19	18	17	20	21	20	21	20	20	19	19	21	22	21	21	21
Feels °C	17	17	16	19	20	19	19	20	19	18	17	21	21	19	21	20	21	20	20	22	22	20	20	21
Swell 1 Height (m) Direction Period (s)	SE 7	SE 7	SE 7	SSE 8	SE 8	SE 8	SE 8	SE 8	SE 8	SE 8	SE 9	SE 9	SE 9	ESE 9	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10
kJ	65	88	88	178	248	229	227	229	186	226	542	612	639	617	718	697	778	731	746	717	650	650	650	561
Swell 2 Height (m) Direction Period (s)	S 11	S 11	S 11	S 12	S 14	S 12	S 11	S 11	S 11	S 11	S 11	S 11	S 10	S 10	S 10	S 10	S 10	S 10	S 10	S 10	S 10	S 9	S 12	S 10
kJ	209	157	91	65	65	66	59	87	87	110	63	57	53	33	33	32	18	18	17	8	7	7	3	7
Swell 3 Height (m) Direction Period (s)	E 8	E 8	E 8	E 8	E 8	S 14	S 14	S 14	S 14	S 13	—	—	—	—	—	—	—	—	—	—	—	—	S 12	S 11
kJ	22	22	22	22	23	62	59	58	32	31	—	—	—	—	—	—	—	—	—	—	—	—	3	3
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Nearest Offshore or Glassy	Cape Vidal KZN North	Cape Vidal KZN North	Cape Vidal KZN North	Cape Vidal KZN North	Reunion Durban/KZN South	Reunion Durban/KZN South	Mtunzini KZN North	Sodwana 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	Salt Rock KZN North	Sodwana KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Reunion Durban/KZN South	Salt Rock KZN North	Richards Bay (Inside) KZN North	Kosi Bay KZN North
Rating (10 max)	3	3	3	3	2	2	2	2	2	2	3	3	3	3	3	3	3	3	3	3	3	2	2	3
Distance (km)	144	144	144	144	380	380	258	25	144	0	0	0	380	380	337	25	0	0	0	0	380	337	229	0
Best forecast wave conditions in KwaZulu-Natal North Coast	Siyayi	Umhlanga	Richards Bay (Outside)	Alkantstrand			Umhlanga	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)			Umhlanga	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)		Umhlanga	Richards Bay (Outside)	Umhlanga
Rating (10 max)	3	3	3	3			2	2	3	3	3	3			3	3	3	3	3	3		3	3	3
Best forecast wave conditions in South Africa	Gerickes Point Garden Route	Gerickes Point Garden Route	Glen Eden Eastern Cape - Wild Coast	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gonubie Reef (The Lefts) Eastern Cape - Wild Coast	Queensberry Bay Eastern Cape - Wild Coast	Gonubie Reef (The Lefts) Eastern Cape - Wild Coast	Hole-in-the-Wall Eastern Cape - Wild Coast	Gonubie Reef (The Lefts) Eastern Cape - Wild Coast	Gonubie Reef (The Lefts) Eastern Cape - Wild Coast	Reunion Durban/KZN South	Gonubie Reef (The Lefts) Eastern Cape - Wild Coast	Gonubie Reef (The Lefts) Eastern Cape - Wild Coast	Gonubie Reef (The Lefts) Eastern Cape - Wild Coast	Gonubie Reef (The Lefts) Eastern Cape - Wild Coast	Yellow sands Point Eastern Cape - Wild Coast	Yellow sands Point Eastern Cape - Wild Coast	Dungeons Cape Town	Dungeons Cape Town	Hout Bay Cape Town	Dungeons Cape Town	Dungeons Cape Town
Rating (10 max)	3	3	4	3	2	2	3	4	3	4	3	3	3	3	3	3	3	3	3	3	4	4	4	4
Header Global	Chameau Mauritius	Benkunqut Indonesia	Benkunqut Indonesia	Benkunqut Indonesia	Cobblestones Australia	Bancoora Australia	Cobblestones Australia	Buchupureo Chile	Buchupureo Chile	Buchupureo Chile	Buchupureo Chile	Point Roadnight Australia	Shingles New Zealand	Fox River New Zealand	Nine Mile New Zealand	Cathedral Rock Australia	Antiques Maldives	Asu Indonesia	Asu Indonesia	Tessellated Pavements Australia	Asu Indonesia	Shingles New Zealand	Tessellated Pavements Australia	Dolphin Point South Africa
Rating (10 max)	4	4	4	4	6	5	5	8	7	7	6	8	6	6	6	8	4	4	4	6	4	5	5	5

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 (13 Jul):

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