Kosi Bay 48 hour detailed Surf Forecast

Lat Long: 26.87° S 32.89° E

Issued: 1 am 17 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 (17 Jul):

Morning surf: Morning surf (17 Jul, local time) - 4.5ft (1.3m), 10s period with ESE swell.
Afternoon surf: Afternoon surf (17 Jul, local time) - 4ft (1.2m), 10s period with ESE swell.
Evening surf: Evening surf (17 Jul, local time) - 3.5ft (1.1m), 10s period with ESE swell.

The current surf forecast for Kosi Bay at 7AM is: 1.3m 10s primary swell from a East-southeast direction and 0.3m 9s secondary swell from a South-southwest direction (forecast issued at 01:00am July 17). The wind direction is predicted to be offshore and the swell rating is 2.

Time (SAST) & Date	Wave Height	Wave Period
Morning (17 Jul)	4.5ft (1.3m)	10s
Afternoon (17 Jul)	4ft (1.2m)	10s
Evening (17 Jul)	3.5ft (1.1m)	10s

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

	Short Range Forecast Mostly dry. Warm (max 25°C on Sat afternoon, min 17°C on Fri morning). Wind will be generally light.
	Friday 17								Saturday 18								Sunday 19
	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)	2	2	2	2	1	0	2	2	2	2	2	0	1	1	1	2	2	2	2	0	0	0	2	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	E 10	E 10	E 10	E 10	ESE 10	E 10	E 10	E 10	S 14	S 13	S 13	SSE 16	SSE 16	SSE 15	SSE 14	SSE 13	SSE 13
Wave Graph
kJ	365	358	301	301	288	245	240	231	235	196	196	160	151	151	148	146	225	347	348	620	498	1016	1299	1086
Wind (km/h)	WNW	WNW	NW	N	NNE	NE	NNE	N	NNW	NNW	NNW	N	NNE	NNE	NE	NNE	N	NW	SSW	SSW	S	SSE	SSE	S
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	off	off	cross-off	cross-off	cross	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	off	cross	cross-on	cross-on	cross-on	cross-on	cross-on
High Tide			5:31AM2.12m				5:56PM2.18m				6:07AM2.04m				6:34PM2.10m				6:43AM1.93m				7:10PM1.97m
Low Tide	11:25PM0.12m				11:39AM0.04m				00:03AM0.19m				12:16PM0.11m				00:41AM0.30m				12:52PM0.23m


	—	6:35	—	—	—	—	—	—	—	6:35	—	—	—	—	—	—	—	6:35	—	—	—	—	—	—
	—	—	—	—	—	5:13	—	—	—	—	—	—	—	5:13	—	—	—	—	—	—	—	5:14	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	19	18	17	21	23	22	22	21	20	19	18	23	25	23	23	22	21	19	18	22	24	22	22	20
Feels °C	19	18	17	20	21	20	21	20	20	18	16	20	21	20	23	23	21	18	18	21	23	21	22	21
Swell 1 Height (m) Direction Period (s)	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	E 10	E 10	E 10	E 10	ESE 10	E 10	E 10	E 10	E 10	E 10	S 13	S 12	SSE 16	SSE 15	SSE 14	SSE 13	SSE 13
kJ	365	358	301	301	288	245	240	231	235	196	196	160	151	151	148	117	117	347	305	620	498	1016	1299	1086
Swell 2 Height (m) Direction Period (s)	SSE 9	SSE 9	SSW 9	SSW 8	S 7	S 7	S 6	S 10	S 9	SSW 16	SSW 15	SSW 13	SSW 12	S 12	S 11	S 14	S 13	E 10	SSE 16	S 12	S 12	E 10	E 10	E 10
kJ	16	7	15	14	9	9	3	17	6	26	43	17	50	67	61	146	225	120	348	171	273	96	96	71
Swell 3 Height (m) Direction Period (s)	SSW 12	SSW 10	SSE 8	SSE 8	SSE 8	SSE 10	S 10	SSW 7	SSW 12	S 9	S 9	S 15	S 16	S 15	S 15	SSW 10	SSW 10	NE 5	E 10	E 10	E 10	NE 6	NE 6	NE 5
kJ	14	10	7	7	7	10	8	4	15	2	2	18	21	41	68	35	75	17	122	125	96	20	11	10
Wind waves Height (m) Direction Period (s)	—	—	—	—	NNE 2	NE 3	NE 3	NNE 3	N 3	N 4	NNE 4	NNE 4	NNE 4	NNE 4	NNE 4	NE 4	NE 4	NNE 5	—	SSW 4	S 4	S 5	—	S 4
kJ	—	—	—	—	1	5	5	4	6	7	14	15	16	18	17	18	21	25	—	10	28	34	—	9
Nearest Offshore or Glassy	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Addington (South Beach) Durban/KZN South	Alkantstrand KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Sodwana KZN North	Reunion Durban/KZN South	Reunion Durban/KZN South	Sodwana KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Kosi Bay KZN North	Alkantstrand KZN North	Alkantstrand KZN North	Alkantstrand KZN North	Alkantstrand KZN North	Alkantstrand KZN North	Cape Vidal KZN North
Rating (10 max)	2	2	2	2	1	2	2	2	2	2	2	1	2	2	2	2	2	2	3	3	4	4	4	4
Distance (km)	0	0	0	0	378	228	0	0	0	0	0	25	380	380	25	0	0	0	228	228	228	228	228	144
Best forecast wave conditions in KwaZulu-Natal North Coast	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)		Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)	Richards Bay (Outside)			Richards Bay (Outside)	Richards Bay (Outside)	Siyayi	Umhlanga	Umhlanga	Umhlanga	Alkantstrand	Alkantstrand	Umhlanga	Umhlanga
Rating (10 max)	2	2	2	2		2	2	2	2	2	2	2			3	2	3	3	4	4	4	4	4	4
Best forecast wave conditions in South Africa	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Seal Point Eastern Cape (S)	Yellow sands Point Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Gerickes Point Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Yellow sands Point Eastern Cape - Wild Coast	Yellow sands Point Eastern Cape - Wild Coast	Vleesbaai Overberg	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Yellow sands Point Eastern Cape - Wild Coast	Yellow sands Point Eastern Cape - Wild Coast	East Pier (Port Alfred) Eastern Cape (S)	Dolphin Point Overberg	Reunion Durban/KZN South	Dolphin Point Overberg	Vleesbaai Overberg
Rating (10 max)	4	4	4	4	4	4	4	4	3	3	3	3	3	3	4	3	3	4	4	4	4	4	4	4
Header Global	Easter Reef Australia	Easter Reef Australia	Kleinemonde South Africa	Easter Reef Australia	Dunedin - Kuri Bush New Zealand	Dunedin - Kuri Bush New Zealand	Dunedin - Bobs Beach New Zealand	Dunedin - Bobs Beach New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Seconds (White Rock) New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Kaka Point New Zealand	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Papanui Beach New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Papanui Beach New Zealand	Otago Peninsula - Papanui Beach New Zealand	Otago Peninsula - Allans Beach New Zealand
Rating (10 max)	6	6	5	5	6	7	6	6	9	7	8	9	8	6	5	6	6	5	6	6	7	7	7	6

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 (17 Jul):

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